HYDAC傳感器HDA4444-A-600-Y-ZBE03翊霈優供
發布日(ri)期：2023-12-20
簡要描述：
HYDAC傳感器HDA4444-A-600-Y-ZBE03翊霈優供
HYDAC傳感器HDA4444-A-600-Y-ZBE03翊霈優供
用(yong)于(yu)磁(ci)(ci)化開磁(ci)(ci)路軟(ruan)磁(ci)(ci)材(cai)料(liao)試(shi)樣(yang)。又稱軟(ruan)磁(ci)(ci)磁(ci)(ci)導(dao)(dao)計(ji)。其結構(gou)見(jian)圖(tu)1。材(cai)料(liao)試(shi)樣(yang)夾在兩(liang)U狀磁(ci)(ci)軛之間，并穿(chuan)過均(jun)勻分布的(de)磁(ci)(ci)化線(xian)圈。磁(ci)(ci)軛由硅(gui)(gui)鋼片(pian)疊制而成。用(yong)中場磁(ci)(ci)導(dao)(dao)計(ji)代替愛潑斯(si)坦儀(yi)測量(liang)硅(gui)(gui)鋼片(pian)等(deng)的(de)磁(ci)(ci)特性(xing)和鐵損，無需剪裁，可節省大(da)量(liang)試(shi)樣(yang)材(cai)料(liao)，并能(neng)方便地(di)裝入和取(qu)出試(shi)樣(yang)。較簡單的(de)中場磁(ci)(ci)導(dao)(dao)計(ji)只使用(yong)一個U狀磁(ci)(ci)軛，試(shi)樣(yang)可采用(yong)更小尺寸(cun)的(de)切片(pian)（見(jian)硅(gui)(gui)鋼片(pian)磁(ci)(ci)特性(xing)測量(liang)）。
由(you)于(yu)鐵(tie)(tie)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)質(zhi)(zhi)的(de)(de)(de)(de)作用(yong),導(dao)(dao)(dao)致螺線(xian)管(guan)(guan)內(nei)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)的(de)(de)(de)(de)均勻性(xing)(xing)遭到破(po)壞,磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)測(ce)(ce)(ce)量(liang)(liang)線(xian)圈常數(shu)由(you)此(ci)產(chan)生變(bian)化(hua)(hua),使(shi)(shi)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)性(xing)(xing)能測(ce)(ce)(ce)量(liang)(liang)結果嚴重失(shi)真.所以,用(yong)中(zhong)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)導(dao)(dao)(dao)計來測(ce)(ce)(ce)量(liang)(liang)軟磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)材料棒形(xing)試樣(yang)(yang)的(de)(de)(de)(de)各項磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)性(xing)(xing)能是不(bu)適宜(yi)的(de)(de)(de)(de).當把一個鐵(tie)(tie)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)質(zhi)(zhi)封(feng)閉的(de)(de)(de)(de)盒子放人均勻磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)中(zhong)，則盒壁與(yu)(yu)其(qi)中(zhong)的(de)(de)(de)(de)空(kong)(kong)間(jian)構成了(le)并聯(lian)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)路。由(you)于(yu)鐵(tie)(tie)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)質(zhi)(zhi)的(de)(de)(de)(de)相對磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)導(dao)(dao)(dao)率(lv)(lv)遠(yuan)(yuan)遠(yuan)(yuan)大(da)(da)于(yu)空(kong)(kong)氣的(de)(de)(de)(de)相對磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)導(dao)(dao)(dao)率(lv)(lv)，因(yin)此(ci)，空(kong)(kong)腔中(zhong)的(de)(de)(de)(de)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)阻就(jiu)遠(yuan)(yuan)遠(yuan)(yuan)大(da)(da)于(yu)盒壁的(de)(de)(de)(de)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)阻，所以磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)的(de)(de)(de)(de)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)力(li)線(xian)幾乎全部(bu)從盒壁內(nei)通(tong)過(guo)(guo)，而空(kong)(kong)腔內(nei)僅有(you)(you)(you)極少數(shu)的(de)(de)(de)(de)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)力(li)線(xian)通(tong)過(guo)(guo), 因(yin)此(ci)，空(kong)(kong)腔內(nei)的(de)(de)(de)(de)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)很(hen)弱。同樣(yang)(yang)的(de)(de)(de)(de)原(yuan)因(yin)，當螺管(guan)(guan)中(zhong)有(you)(you)(you)鐵(tie)(tie)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)質(zhi)(zhi)試樣(yang)(yang)時，螺管(guan)(guan)中(zhong)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)的(de)(de)(de)(de)均勻性(xing)(xing)已遭到破(po)壞，絕大(da)(da)部(bu)分磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)力(li)線(xian)也應(ying)通(tong)過(guo)(guo)鐵(tie)(tie)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)質(zhi)(zhi)試樣(yang)(yang)，在(zai)(zai)(zai)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)開路情況下只有(you)(you)(you)少數(shu)的(de)(de)(de)(de)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)力(li)線(xian)通(tong)過(guo)(guo)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)測(ce)(ce)(ce)量(liang)(liang)線(xian)圈的(de)(de)(de)(de)間(jian)隙(xi)，因(yin)此(ci)，測(ce)(ce)(ce)得(de)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)強度就(jiu)很(hen)小；在(zai)(zai)(zai)閉合磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)路情況下由(you)于(yu)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)導(dao)(dao)(dao)計磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)扼(e)體和鐵(tie)(tie)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)質(zhi)(zhi)試樣(yang)(yang)共同作用(yong)，使(shi)(shi)較(jiao)(jiao)多(duo)的(de)(de)(de)(de)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)力(li)線(xian)通(tong)過(guo)(guo)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)測(ce)(ce)(ce)量(liang)(liang)線(xian)圈的(de)(de)(de)(de)間(jian)隙(xi)，因(yin)此(ci)，測(ce)(ce)(ce)得(de)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)強度就(jiu)較(jiao)(jiao)大(da)(da) [1] 。強場(chang)(chang)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)導(dao)(dao)(dao)計于(yu)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)化(hua)(hua)永(yong)(yong)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)材料（即硬磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)材料）試樣(yang)(yang)。又稱(cheng)永(yong)(yong)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)導(dao)(dao)(dao)計。由(you)于(yu)永(yong)(yong)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)材料在(zai)(zai)(zai)測(ce)(ce)(ce)量(liang)(liang)與(yu)(yu)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)化(hua)(hua)時要求(qiu)有(you)(you)(you)很(hen)強而集中(zhong)的(de)(de)(de)(de)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)，且永(yong)(yong)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)材料試樣(yang)(yang)多(duo)是開路形(xing)式(shi)，故(gu)專(zhuan)門制(zhi)造了(le)這種磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)導(dao)(dao)(dao)計。強場(chang)(chang)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)導(dao)(dao)(dao)計由(you)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)極、磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)軛(e)、磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)化(hua)(hua)線(xian)圈等構成（圖2），試樣(yang)(yang)夾(jia)在(zai)(zai)(zai)可(ke)動磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)極與(yu)(yu)固(gu)定磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)極之(zhi)間(jian)。為使(shi)(shi)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)化(hua)(hua)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)集中(zhong)在(zai)(zai)(zai)試樣(yang)(yang)上，須使(shi)(shi)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)軛(e)消(xiao)耗的(de)(de)(de)(de)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)化(hua)(hua)安匝盡量(liang)(liang)少，因(yin)此(ci)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)軛(e)通(tong)常采用(yong)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)導(dao)(dao)(dao)率(lv)(lv)高(gao)的(de)(de)(de)(de)材料，并且截面較(jiao)(jiao)大(da)(da)，制(zhi)作時要求(qiu)有(you)(you)(you)較(jiao)(jiao)高(gao)的(de)(de)(de)(de)工藝水平。磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)化(hua)(hua)線(xian)圈由(you)直流電(dian)源供電(dian)，其(qi)容量(liang)(liang)可(ke)滿足產(chan)生足夠大(da)(da)的(de)(de)(de)(de)飽和磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)強度Hm的(de)(de)(de)(de)需要。Hm一般取(qu)被測(ce)(ce)(ce)材料內(nei)稟(bing)矯頑力(li)Hcj的(de)(de)(de)(de)3～5倍，電(dian)源的(de)(de)(de)(de)穩定度應(ying)保(bao)證在(zai)(zai)(zai)1分鐘內(nei)變(bian)化(hua)(hua)不(bu)超過(guo)(guo)0.1%。
計為快速檢(jian)驗和分選永磁(ci)(ci)材料，常采(cai)用對稱雙軛磁(ci)(ci)導(dao)計結構。它的(de)兩個U狀磁(ci)(ci)軛*對稱，4個磁(ci)(ci)化線圈(quan)*相同(tong)，并串聯(lian)在(zai)一(yi)起。未放(fang)入試(shi)(shi)樣時，左右兩氣(qi)(qi)(qi)隙(xi)(xi)內(nei)的(de)磁(ci)(ci)通相等，中(zhong)間(jian)(jian)氣(qi)(qi)(qi)隙(xi)(xi)內(nei)的(de)磁(ci)(ci)通為零。在(zai)一(yi)邊氣(qi)(qi)(qi)隙(xi)(xi)中(zhong)放(fang)入試(shi)(shi)樣后，磁(ci)(ci)路平衡(heng)被破壞，中(zhong)間(jian)(jian)氣(qi)(qi)(qi)隙(xi)(xi)內(nei)存在(zai)有正比于試(shi)(shi)樣磁(ci)(ci)化強(qiang)(qiang)度的(de)磁(ci)(ci)通。作用于試(shi)(shi)樣的(de)磁(ci)(ci)場強(qiang)(qiang)度，可(ke)(ke)在(zai)另一(yi)邊氣(qi)(qi)(qi)隙(xi)(xi)內(nei)測得。如(ru)在(zai)一(yi)邊氣(qi)(qi)(qi)隙(xi)(xi)內(nei)放(fang)入標準試(shi)(shi)樣，則可(ke)(ke)對放(fang)在(zai)另一(yi)邊氣(qi)(qi)(qi)隙(xi)(xi)中(zhong)的(de)試(shi)(shi)樣進行分選
數字電容(rong)表(biao)是一(yi)(yi)(yi)種(zhong)智能(neng)型、性能(neng)穩(wen)定、高(gao)(gao)(gao)(gao)可靠性、3 5/6數字多用(yong)表(biao)，儀表(biao)采(cai)用(yong)33mm字高(gao)(gao)(gao)(gao)LCD顯(xian)示(shi)(shi)器(qi)，讀(du)數清晰(xi)，顯(xian)示(shi)(shi)直觀，操(cao)作方便(bian)，可用(yong)來測(ce)(ce)量(liang)(liang)(liang)電阻、電容(rong)、二極(ji)管及通(tong)斷測(ce)(ce)試(shi)(shi)(shi)；同(tong)(tong)時還設(she)有(you)單位(wei)符(fu)號顯(xian)示(shi)(shi)、數據保(bao)持、大(da)小値測(ce)(ce)量(liang)(liang)(liang)，自動(dong)/手動(dong)量(liang)(liang)(liang)程(cheng)轉換、自動(dong)斷電、自動(dong)識別及報警功能(neng)。整(zheng)機采(cai)用(yong)了一(yi)(yi)(yi)個(ge)(ge)能(neng)直接驅動(dong)LCD微處理器(qi)和雙(shuang)積分(fen)(fen)A/D轉換集成電路(lu)，一(yi)(yi)(yi)個(ge)(ge)提供高(gao)(gao)(gao)(gao)分(fen)(fen)辨(bian)力、高(gao)(gao)(gao)(gao)精度的(de)(de)數字顯(xian)示(shi)(shi)驅動(dong)，該表(biao)功能(neng)齊全(quan)，測(ce)(ce)量(liang)(liang)(liang)準(zhun)確度高(gao)(gao)(gao)(gao)，使用(yong)方便(bian)，是實驗室、工廠、無(wu)線電愛好者及家庭(ting)的(de)(de)理想(xiang)工具。確認電池和保(bao)險(xian)絲(si)已正確安裝；要測(ce)(ce)量(liang)(liang)(liang)的(de)(de)電容(rong)在測(ce)(ce)量(liang)(liang)(liang)前(qian)已充(chong)分(fen)(fen)放電；要測(ce)(ce)量(liang)(liang)(liang)的(de)(de)電容(rong)，其極(ji)性要與測(ce)(ce)量(liang)(liang)(liang)端子(zi)的(de)(de)極(ji)性一(yi)(yi)(yi)致(zhi)；請一(yi)(yi)(yi)定注意，不要在測(ce)(ce)量(liang)(liang)(liang)端子(zi)加載電壓，否則將(jiang)(jiang)導致(zhi)嚴(yan)重的(de)(de)損害；不要嘗試(shi)(shi)(shi)短接兩(liang)個(ge)(ge)輸(shu)入端子(zi)，否則將(jiang)(jiang)極(ji)大(da)的(de)(de)浪費(fei)電池電量(liang)(liang)(liang)，并(bing)以過載顯(xian)示(shi)(shi)；如(ru)果被測(ce)(ce)量(liang)(liang)(liang)的(de)(de)電容(rong)器(qi)是未知的(de)(de)，請從小量(liang)(liang)(liang)程(cheng)開始(shi)測(ce)(ce)量(liang)(liang)(liang)，并(bing)逐步加大(da)直到得到合適的(de)(de)值。為快速檢(jian)驗和分(fen)(fen)選永磁(ci)(ci)(ci)(ci)(ci)材料，常采(cai)用(yong)對稱(cheng)雙(shuang)軛磁(ci)(ci)(ci)(ci)(ci)導計結構(gou)。它的(de)(de)兩(liang)個(ge)(ge)U狀(zhuang)磁(ci)(ci)(ci)(ci)(ci)軛*對稱(cheng)，4個(ge)(ge)磁(ci)(ci)(ci)(ci)(ci)化線圈*相同(tong)(tong)，并(bing)串聯在一(yi)(yi)(yi)起(qi)。未放入試(shi)(shi)(shi)樣(yang)時，左右兩(liang)氣(qi)隙(xi)(xi)內(nei)的(de)(de)磁(ci)(ci)(ci)(ci)(ci)通(tong)相等，中(zhong)(zhong)間氣(qi)隙(xi)(xi)內(nei)的(de)(de)磁(ci)(ci)(ci)(ci)(ci)通(tong)為零。在一(yi)(yi)(yi)邊(bian)(bian)氣(qi)隙(xi)(xi)中(zhong)(zhong)放入試(shi)(shi)(shi)樣(yang)后，磁(ci)(ci)(ci)(ci)(ci)路(lu)平衡被破(po)壞(huai)，中(zhong)(zhong)間氣(qi)隙(xi)(xi)內(nei)存在有(you)正比于(yu)(yu)試(shi)(shi)(shi)樣(yang)磁(ci)(ci)(ci)(ci)(ci)化強(qiang)度的(de)(de)磁(ci)(ci)(ci)(ci)(ci)通(tong)。作用(yong)于(yu)(yu)試(shi)(shi)(shi)樣(yang)的(de)(de)磁(ci)(ci)(ci)(ci)(ci)場強(qiang)度，可在另一(yi)(yi)(yi)邊(bian)(bian)氣(qi)隙(xi)(xi)內(nei)測(ce)(ce)得。如(ru)在一(yi)(yi)(yi)邊(bian)(bian)氣(qi)隙(xi)(xi)內(nei)放入標準(zhun)試(shi)(shi)(shi)樣(yang)，則可對放在另一(yi)(yi)(yi)邊(bian)(bian)氣(qi)隙(xi)(xi)中(zhong)(zhong)的(de)(de)試(shi)(shi)(shi)樣(yang)進(jin)行分(fen)(fen)選。量(liang)(liang)(liang)程(cheng)選擇
選擇功(gong)(gong)率(lv)(lv)表(biao)(biao)的(de)量(liang)程(cheng)(cheng)(cheng)(cheng)就(jiu)是選擇功(gong)(gong)率(lv)(lv)表(biao)(biao)中(zhong)的(de)電(dian)流(liu)(liu)(liu)(liu)量(liang)程(cheng)(cheng)(cheng)(cheng)和(he)電(dian)壓(ya)量(liang)程(cheng)(cheng)(cheng)(cheng)。使(shi)用(yong)時(shi)應使(shi)功(gong)(gong)率(lv)(lv)表(biao)(biao)中(zhong)的(de)電(dian)流(liu)(liu)(liu)(liu)量(liang)程(cheng)(cheng)(cheng)(cheng)不(bu)(bu)小于負(fu)(fu)載(zai)(zai)電(dian)流(liu)(liu)(liu)(liu)，電(dian)壓(ya)量(liang)程(cheng)(cheng)(cheng)(cheng)不(bu)(bu)低(di)于負(fu)(fu)載(zai)(zai)電(dian)壓(ya)，而(er)不(bu)(bu)能(neng)(neng)僅從功(gong)(gong)率(lv)(lv)量(liang)程(cheng)(cheng)(cheng)(cheng)來考慮。例(li)如，兩只功(gong)(gong)率(lv)(lv)表(biao)(biao)，量(liang)程(cheng)(cheng)(cheng)(cheng)分別(bie)是IA、300V和(he)2A、150V，由計(ji)算可知其功(gong)(gong)率(lv)(lv)量(liang)程(cheng)(cheng)(cheng)(cheng)均為300W，如果(guo)要(yao)測(ce)量(liang)一(yi)負(fu)(fu)載(zai)(zai)電(dian)壓(ya)為220V、電(dian)流(liu)(liu)(liu)(liu)為IA的(de)負(fu)(fu)載(zai)(zai)功(gong)(gong)率(lv)(lv)時(shi)應逸用(yong)IA、300V的(de)功(gong)(gong)率(lv)(lv)表(biao)(biao)，而(er)2A、150V的(de)功(gong)(gong)率(lv)(lv)表(biao)(biao)雖(sui)功(gong)(gong)率(lv)(lv)量(liang)程(cheng)(cheng)(cheng)(cheng)也大于負(fu)(fu)載(zai)(zai)功(gong)(gong)率(lv)(lv)，但是由于負(fu)(fu)載(zai)(zai)電(dian)壓(ya)高(gao)于功(gong)(gong)率(lv)(lv)表(biao)(biao)所(suo)能(neng)(neng)承受的(de)電(dian)壓(ya)150V，故(gu)不(bu)(bu)能(neng)(neng)使(shi)用(yong)。所(suo)以(yi)，在測(ce)量(liang)功(gong)(gong)率(lv)(lv)前(qian)要(yao)根據(ju)負(fu)(fu)載(zai)(zai)的(de)額定電(dian)壓(ya)和(he)額定電(dian)流(liu)(liu)(liu)(liu)來選擇功(gong)(gong)率(lv)(lv)表(biao)(biao)的(de)量(liang)程(cheng)(cheng)(cheng)(cheng)。
測量(liang)(liang)線(xian)(xian)(xian)(xian)(xian)路電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)系測量(liang)(liang)機構的(de)(de)(de)(de)(de)(de)(de)(de)轉動(dong)力矩(ju)方(fang)向和(he)兩線(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)中(zhong)的(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)方(fang)向有(you)關(guan)，為(wei)了(le)防(fang)止電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)系功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)表(biao)(biao)(biao)(biao)的(de)(de)(de)(de)(de)(de)(de)(de)指(zhi)針(zhen)反偏(pian)，接(jie)(jie)(jie)(jie)(jie)線(xian)(xian)(xian)(xian)(xian)時(shi)功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)表(biao)(biao)(biao)(biao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)線(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)標(biao)有(you)“·”號的(de)(de)(de)(de)(de)(de)(de)(de)端(duan)(duan)鈕必須接(jie)(jie)(jie)(jie)(jie)到(dao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)的(de)(de)(de)(de)(de)(de)(de)(de)正(zheng)，而電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)線(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)的(de)(de)(de)(de)(de)(de)(de)(de)另(ling)一端(duan)(duan)則與負(fu)載(zai)(zai)(zai)相(xiang)連，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)線(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)以(yi)(yi)(yi)串聯形式(shi)(shi)(shi)接(jie)(jie)(jie)(jie)(jie)入電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路中(zhong)。功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)表(biao)(biao)(biao)(biao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)線(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)標(biao)有(you)“·”號的(de)(de)(de)(de)(de)(de)(de)(de)端(duan)(duan)鈕可(ke)以(yi)(yi)(yi)接(jie)(jie)(jie)(jie)(jie)到(dao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)端(duan)(duan)鈕的(de)(de)(de)(de)(de)(de)(de)(de)任一端(duan)(duan)上(shang)，而另(ling)一電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)端(duan)(duan)鈕則跨接(jie)(jie)(jie)(jie)(jie)到(dao)負(fu)載(zai)(zai)(zai)的(de)(de)(de)(de)(de)(de)(de)(de)另(ling)一端(duan)(duan)，當負(fu)載(zai)(zai)(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)遠(yuan)遠(yuan)大(da)于(yu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)線(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)的(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)時(shi)，應采(cai)用(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)線(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)前接(jie)(jie)(jie)(jie)(jie)法(fa)。這時(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)線(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)的(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)是負(fu)載(zai)(zai)(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)和(he)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)線(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)之(zhi)(zhi)和(he)，功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)表(biao)(biao)(biao)(biao)測量(liang)(liang)的(de)(de)(de)(de)(de)(de)(de)(de)是負(fu)載(zai)(zai)(zai)功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)和(he)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)線(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)之(zhi)(zhi)和(he)。如(ru)果(guo)負(fu)載(zai)(zai)(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)遠(yuan)遠(yuan)大(da)于(yu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)線(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)的(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)，則可(ke)以(yi)(yi)(yi)略去(qu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)線(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)分(fen)壓(ya)(ya)(ya)(ya)所(suo)(suo)造成(cheng)的(de)(de)(de)(de)(de)(de)(de)(de)影(ying)(ying)響(xiang)，測量(liang)(liang)結果(guo)比較(jiao)接(jie)(jie)(jie)(jie)(jie)近負(fu)載(zai)(zai)(zai)的(de)(de)(de)(de)(de)(de)(de)(de)實(shi)際功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)值。當負(fu)載(zai)(zai)(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)遠(yuan)遠(yuan)小(xiao)(xiao)于(yu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)線(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)時(shi)，應采(cai)用(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)線(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)后(hou)接(jie)(jie)(jie)(jie)(jie)法(fa) 。這時(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)線(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)兩端(duan)(duan)的(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)雖然等于(yu)負(fu)載(zai)(zai)(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)，但電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)線(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)中(zhong)的(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)卻等于(yu)負(fu)載(zai)(zai)(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)與功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)表(biao)(biao)(biao)(biao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)線(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)中(zhong)的(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)之(zhi)(zhi)和(he)，測量(liang)(liang)時(shi)功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)讀(du)數(shu)(shu)為(wei)負(fu)載(zai)(zai)(zai)功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)與電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)線(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)之(zhi)(zhi)和(he)。由于(yu)此時(shi)負(fu)載(zai)(zai)(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)遠(yuan)小(xiao)(xiao)于(yu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)線(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)，所(suo)(suo)以(yi)(yi)(yi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)線(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)分(fen)流(liu)作(zuo)用(yong)(yong)大(da)大(da)減小(xiao)(xiao)，其對測量(liang)(liang)結果(guo)的(de)(de)(de)(de)(de)(de)(de)(de)影(ying)(ying)響(xiang)也可(ke)以(yi)(yi)(yi)大(da)為(wei)減小(xiao)(xiao)。如(ru)界(jie)被測負(fu)載(zai)(zai)(zai)本(ben)(ben)身功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)較(jiao)大(da)，可(ke)以(yi)(yi)(yi)不(bu)(bu)考慮功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)表(biao)(biao)(biao)(biao)本(ben)(ben)身的(de)(de)(de)(de)(de)(de)(de)(de)功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)對測量(liang)(liang)結果(guo)的(de)(de)(de)(de)(de)(de)(de)(de)影(ying)(ying)響(xiang)，則兩種接(jie)(jie)(jie)(jie)(jie)法(fa)可(ke)以(yi)(yi)(yi)任意選(xuan)擇。選(xuan)用(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)線(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)前接(jie)(jie)(jie)(jie)(jie)法(fa)，因(yin)為(wei)功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)表(biao)(biao)(biao)(biao)中(zhong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)線(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)的(de)(de)(de)(de)(de)(de)(de)(de)功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)一般都(dou)小(xiao)(xiao)于(yu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)線(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)支路的(de)(de)(de)(de)(de)(de)(de)(de)功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)。正(zheng)確讀(du)數(shu)(shu)一般安裝式(shi)(shi)(shi)功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)表(biao)(biao)(biao)(biao)為(wei)直(zhi)讀(du)單量(liang)(liang)程(cheng)式(shi)(shi)(shi)，表(biao)(biao)(biao)(biao)上(shang)的(de)(de)(de)(de)(de)(de)(de)(de)示數(shu)(shu)即為(wei)功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)數(shu)(shu)。但便(bian)攜式(shi)(shi)(shi)功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)表(biao)(biao)(biao)(biao)一般為(wei)多量(liang)(liang)程(cheng)式(shi)(shi)(shi)，在(zai)表(biao)(biao)(biao)(biao)的(de)(de)(de)(de)(de)(de)(de)(de)標(biao)度尺上(shang)不(bu)(bu)直(zhi)接(jie)(jie)(jie)(jie)(jie)標(biao)注示數(shu)(shu)，只標(biao)注分(fen)格(ge)。在(zai)選(xuan)用(yong)(yong)不(bu)(bu)同的(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)與電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)量(liang)(liang)程(cheng)時(shi)，每一分(fen)格(ge)都(dou)可(ke)以(yi)(yi)(yi)表(biao)(biao)(biao)(biao)示不(bu)(bu)同的(de)(de)(de)(de)(de)(de)(de)(de)功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)數(shu)(shu)。在(zai)讀(du)數(shu)(shu)時(shi)，應先(xian)根據所(suo)(suo)選(xuan)的(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)量(liang)(liang)程(cheng)U、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)量(liang)(liang)程(cheng)I以(yi)(yi)(yi)及(ji)標(biao)度尺滿量(liang)(liang)程(cheng)時(shi)的(de)(de)(de)(de)(de)(de)(de)(de)格(ge)數(shu)(shu)&，求(qiu)出每格(ge)瓦數(shu)(shu)（又稱功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)表(biao)(biao)(biao)(biao)常數(shu)(shu)）C，然后(hou)再乘上(shang)指(zhi)針(zhen)偏(pian)轉的(de)(de)(de)(de)(de)(de)(de)(de)格(ge)數(shu)(shu)夕，就可(ke)得到(dao)所(suo)(suo)測功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)P.
HYDAC 備件 6040852ZBE30-05
KUBLER 旋轉編碼器 8.5020.D851.0360;DC24V;100mA
HYDAC 插頭 ZBE02
HYDAC 液壓個 1260884(0160D020BN3HC)
BENDER 絕緣檢測 IRDH275BU-635/B91065111
BENDER 絕緣檢測儀 IRDH265-4
HYDAC 溢流閥 M808 RV8--8-S-0-30
HYDAC 備件 SB330/400-10NBR
HYDAC 濾芯 0110R010BN4HC 濾芯
HYDAC 備件 SAF32M12T330A-S309
HYDAC 儲能器 SB330-10A/112A9-330A
HYDAC 濾芯 0060D010BN4HC
HYDAC 濾芯 2600 R 005 BN4HC/-B6SFREE-03511204
HYDAC 低壓管路過濾器 LPFBN/HC55 EA03D1X/L-24
KUBLER 編碼器 8.F3673.2421.G312
HYDAC 高壓球閥 KHM-50-F6-11141-06X
HYDAC 調速器過濾器濾芯 0330D010 BH4HC/-SFREE
HYDAC 過濾器濾芯 PART NO.:310452
HYDAC 濾芯 0500R010BN/HC S0105
HYDAC 濾芯 0240D010BN4HC/-V
BENDER Circuit Relay RCMA 420-D-2 art number: B 9404 3002
BENDER 備件 VME421H-D-1
HYDAC 濾芯 0280D010BN4HC
HYDAC 皮囊蓄能器 SB330H-20A1/112A9-330A
HYDAC 濾芯 1200R003BN4HC
HYDAC 壓力開關 EDS348-5-400-Y00
HYDAC 高壓球閥 KHB G3/8-1212-03X
KUBLER 備件 8.A02H.3A50.1024.C006 5-30VDC 100ma
HYDAC 濾芯 RV-40-01/0
HYDAC 電器件 K406 374929
HYDAC 傳感器插頭 ZBE08
BENDER 絕緣監測儀 IRDH275B-435
HYDAC 液位計 FSK-254-2.X/O/FT200/12/24
BENDER 漏電保護器 W3-S105
HYDAC 濾芯 1.08.39D06ECO/C
HYDAC 球閥 PN250BAR KHB-25SR-1134
HYDAC SENSOR HAD7446-A-250-000
KUBLER 電器件 BMG DN25-PN40-VK-M280-B60
HYDAC 換向閥 CXK02-2/2-FC-3/40/016/112PP
HYDAC 傳感器 EDS3346-3-0010-000-F1
HYDAC 壓力表 HAD 5001-250-1-1-200
BENDER 控制器 IRDH375-435
BENDER 絕緣故障評估儀 EDS461-D-2
BENDER 電源 AN450
HYDAC 接頭 ZBM300
HYDAC 球閥 KHNVN-G2-2233-12X球閥
HYDAC 壓力傳感器 EDS3348-5-0016-000-F1
HYDAC 濾芯 0330R010BN/HC/-B6
HYDAC 壓力傳感器 EDS348-5-016-Y00
HYDAC 開關 EDS346-3-250-000
HYDAC 數字壓力顯示儀 EDS 3346-3-0016-000-F1
HYDAC 機電 EDS3448-5-0250-Y00
BENDER 備件 AKS470
HYDAC 傳感器 ENS311P-8-0250-000-K
HYDAC 濾芯 I/CJ-D 0330 D 025W/HC
HYDAC 濾芯 0990 D 010 BN4HC
HYDAC 壓力傳感器 EDS3446-3-0600-000
BENDER 編碼器 RCM470DY B94022025
HYDAC 壓差傳感器 VMF 2，5 LZ.1/-AV
HYDAC 插座 ZBE03 同HYDAC-1030
HYDAC 回油濾油器 RFBN/HC240DE10D1.X/-L24
HYDAC 冷卻器 HEX S615-30-00/G1"
HYDAC 高壓過濾器濾芯 0660D010BN4HC
HYDAC 濾芯 0330R010BN4HC
BENDER 外接報警顯示和測試單元 MK2007CBM-CN
BENDER 控制器 UG140P B916382
BENDER 備件 IR420-D4-1 B71016409
BENDER 絕緣監示裝置 IRDH275-435
BENDER 絕緣監示裝置 IRDH275-435
HYDAC 壓力開關 EDS3346-2-06.0-000-F1
HYDAC 數字顯示儀 HDA 5500-0-1-DC-000
HYDAC 接頭 ZBM300
HYDAC 過濾器 2600 R 010 BN4HC
HYDAC 熱電阻 TFP100 904696
HYDAC 濾芯 HC9600FKN16H
BENDER 備件 A.No:B913054 AGH675S-7 Serial No:0808160977
HYDAC 壓力油過濾器 DFBN/HC-240-TF5D1.1/L24
HYDAC 溫度繼電器 ETS388-5-100-000+TFP100+ZBE08+ZBM300
HYDAC 壓力傳感器插頭 ZBE06
HYDAC 傳感器 EDS3446-3-0100-000
BENDER 絕緣故障評估儀 EDS460-D-1
BENDER 絕緣檢測互感器 W2-S70
HYDAC 主冷卻水循環泵電機 3330389 CRI5-4
BENDER 繼電器 IR420-D4-2
HYDAC 傳感器 ETS1701-100-000
HYDAC 傳感器 ETS1701-100-000
HYDAC Accumulator SB330A-130A1/112A-330A
HYDAC 濾芯 2600R020BN4HC
HYDAC 濾芯 0160R010BN4HC
HYDAC 濾芯 RF BN/HC950D010D1.X/-L24
BENDER 監視器 RCMS460-D1
HYDAC 備件 HDA4445-A-016-000+ZBE01
BENDER 備件 9604-1121
HYDAC 壓力開關 EDS3346-3-0016-000-F1
HYDAC 球閥 KHB-16SR-1212-01X
HYDAC 傳感器 EDS348-5-016-000
HYDAC 壓力傳感器 HDA3840-A-400-124 (6M)
HYDAC 球閥 I/N:KHB-22LR-1212-01X
BENDER 醫用IT隔離電源 AN450
HYDAC 密封圈 Seal kit NBR*SB330/400 2 5-6l
HYDAC 開關 EDS344-3-016-000
HYDAC 插座 ZBE03 同HYDAC-1030
KUBLER 編碼器 8.5020.0050.2048.S124
HYDAC 插頭 ZBE08
HYDAC 過濾器 NFBN/HC1310DP20D1.0/-L24
HYDAC 高壓濾油器 DF BN/HC500QE5D1.X/VL24
HYDAC 傳感器 ETS1701-100-000
KUBLER 編碼器 8.5868.12C2.C112 1509010275
HYDAC 過濾器濾 HC2296FKT18H50
HYDAC 備件 HDA3845-A-400-000
KUBLER 編碼器 8.3610.0060.1000.0018
HYDAC 溫度傳感器 ETS328-5-100-000
KUBLER 編碼器 8.5000.8358.2000
KUBLER 編碼器 8.5820.0500.1024.5035
BENDER 備件 IRDH275BM-727
HYDAC 高壓球閥 KHB-25SR-1212-01X
HYDAC 壓力開關 EDS 346-3-250-000
HYDAC CODER EDS348-5-400-000
HYDAC 傳感器 ETS 1701-100-000
HYDAC 開關 HDA4744-A-250-000
KUBLER 計數器 6.923.0100.300
KUBLER 編碼器 8.5850.1242.G102
HYDAC 濾芯 0280R020BN4HC
HYDAC 油管 M52*2；3560mm；G11/2" ST506230/3329406
HYDAC 濾芯 0240D005BN4HC
HYDAC 濾芯 0160D010BN3HC
HYDAC 備件 EDS344-3-250-000
HYDAC 傳感器插頭 ZBE08
HYDAC 濾芯 0240R010BN4HC
HYDAC 壓差傳感器 VM 2 D.0/-L24 43/09 24V AC/DC
BENDER 電流監測器 RCMA420-D-1
HYDAC 傳感器 ETS1701-100-000
BENDER 附件 107TD47
HYDAC 蓄能器 SN400B-32FA/112A9-400
HYDAC 傳感器 EDS344-2-040-000
HYDAC 差壓監視 VD5LZ.1/-DB
BENDER 電源 AN450
HYDAC 濾芯 0950D010BH3/HC
HYDAC 截止閥 SAF32M12N330A-S309
KUBLER 編碼器 T8-5000.C820.2500
HYDAC 開關 EDS1691-N-B-250-000
KUBLER 編碼器 8500.8354.1000
BENDER 備件 B93010006 VMD420-D-2
KUBLER 編碼器 8.5020.4500.1024.A033
HYDAC 濾芯 V035233
HYDAC 壓力傳感器 EDS345-1-016-Y00 16bar 20-
HYDAC 流量開關 EVS 3104-A-0300-000
BENDER 接地檢測 IR470LY-40
HYDAC 聯軸節 KUPPLUNG28/38-38/24
HYDAC 備件 VD5LZ.1/-B0
HYDAC 合成纖維濾芯 1300R020BN3HC
HYDAC SENSOR HDA3840-A-350-Y24
HYDAC 壓力繼電器 EDS3448-3-0250-D00
HYDAC 電器個 ETS1701-100-Y00+TFP104-000+S.S
HYDAC 溫度傳感器 906170
HYDAC 傳感器 EDS344-3-250-000
BENDER 備件 IR420-D6-1
HYDAC 濾芯 1300 R 005 BN4HC濾芯
HYDAC 高壓球閥 HKB-M22X1.5-1112-01X
KUBLER 配套連接器 8.5852.1232.G121
HYDAC 壓力發訊器 EDS300
HYDAC 濾芯 0500D010BH4HC
HYDAC 附個 減壓閥635412
KUBLER 編碼器 8.5020.D851.1024.W06.EX
BENDER 備件 W465-A26
EMG 備件 1250-6OII 220~380V 0.4KW 1.0~0.7A
BENDER 絕緣檢測 IRDH275BM-727/B91065120
KUBLER 編碼器 8.A02H.3182.5000
HYDAC 濾芯 0160R010BN4HC
HYDAC 壓力繼電器 HDA3844-A-400-000+ZBE02
HYDAC 插座 ZBE03 同HYDAC-1030
HYDAC 傳感器 HDA4445-A-250-000
HYDAC 濾芯 01600D010BN4HC
HYDAC 繼電器 EDS3398-5-01.0-V00-E1
BENDER 絕緣監視器 IRDH275-435
HYDAC 壓力傳感器 HDA3840-A-350-124
BENDER 電源 AN450
HYDAC 開關 HDA4744-A-250-000
HYDAC 接頭 ZBM14
HYDAC 備件 HDA-4744-A-400-00
HYDAC 金屬膠管 549238 RF3-C/0/1/2/2.5450LG
HYDAC SENSOR ETS7246-A-000
HYDAC 壓力開關 EDS3346-3-0016-000-F1
HYDAC SENSOR EDS3446-3-0400-Y00
HYDAC 壓力變送器 EDS-3346-3-0016-000-F1
HYDAC 濾芯 0240D010BH4HC
HYDAC 傳感器 ETS1701-100-000
KUBLER 編碼器 8.5821.1C3E.1024
BENDER 檢測儀 IRDH275B-435
HYDAC 備件 RFNBN/HC100BD10LZ1.0/-DB-VW
HYDAC 濾芯 2600R003BN4HC
HYDAC 繼電器 EDS344-2-016-000
BENDER 絕緣檢測互感器 W2-S70
HYDAC 壓力繼電器 EDS3346-3-0100-000
HYDAC 溫度開關 TFP104-000
HYDAC 開關 EDS 344-3-250-000
HYDAC 備件 0060D020BH4HC(H30/95-2)
HYDAC 傳感器 EDS348-5-016-000
HYDAC 濾芯 0280D005BH4HC 濾芯
HYDAC 油壓表 MS2A2.1/180/2610
BENDER 電流互感器 W35AB
HYDAC 濾芯 2600 R 010 P/HC-B6
HYDAC 濾芯 LH0660D020BN3HC
HYDAC 壓力開關 EDS345-1-250-000
BENDER 備件 IRDH265-422
HYDAC 開關 ENS 3118-5-0520-000-K
HYDAC 球閥 KHNVS-RP3/8-2233-12X 序列號702165
HYDAC 濾芯 0240D005BN4HC
BENDER 備件 IRDH275BM-727
BENDER 備件 RCMA472LY-21
HYDAC 傳感器 HDA4444-A-600-Y-ZBE03
KUBLER 編碼器 8.5863.0000.G200
BENDER 備件 SUA 145 B93015508
HYDAC 壓力開關 EDS3346-2-0010-000-F1
HYDAC 濾芯 0660R05BN4HC/-KB
BENDER 備件 IR125Y-2 B91023013
BENDER 控制器 IRDH375-435
HYDAC 蓄能器 SB330-4A1/112A9-330A
BENDER 備件 IR145Y-421
BENDER 400V欠壓監視 B933702 SUD472
BENDER 電源 AN450
BENDER 絕緣檢測 IRDH275BU-635/B91065111
HYDAC 過濾器 DFP BH/HC 660QD10D1.0/L24
HYDAC 壓力傳感器 ETS 3868-5-000-000
BENDER 絕緣監視器 IRDH275-435
BENDER 檢測儀 IRDH275B-435
HYDAC 電磁閥閥芯 17/07 WS/6Z 01-C-N 3026192.38/06
HYDAC 濾芯 1300 R 005 BN3HC
HYDAC 濾芯 0850R100W/HC
HYDAC 開關 ETS1701-100-000+TFP100+S.S
HYDAC 濾芯 0240 D 010 BN4HC
HYDAC 閥 ERVE-R1/2-10X
BENDER 互感器 W35AB 訂貨號B98080016
HYDAC 壓力開關 VD8D 0/-LED(116psi 8bar G1/2 24VDC)
HYDAC 壓力傳感器 HAD3745-A-100-174
BENDER 備件 B91065104 W
用于磁(ci)(ci)(ci)化開磁(ci)(ci)(ci)路軟磁(ci)(ci)(ci)材(cai)料試(shi)(shi)(shi)樣。又稱軟磁(ci)(ci)(ci)磁(ci)(ci)(ci)導計。其結(jie)構見(jian)圖1。材(cai)料試(shi)(shi)(shi)樣夾在兩U狀(zhuang)磁(ci)(ci)(ci)軛(e)之間，并(bing)穿(chuan)過均(jun)勻分(fen)布(bu)的(de)磁(ci)(ci)(ci)化線(xian)圈。磁(ci)(ci)(ci)軛(e)由硅鋼(gang)(gang)片(pian)疊制而成。用中場磁(ci)(ci)(ci)導計代替愛潑斯坦儀測量(liang)硅鋼(gang)(gang)片(pian)等的(de)磁(ci)(ci)(ci)特性(xing)和鐵損，無需剪裁，可(ke)(ke)節省大量(liang)試(shi)(shi)(shi)樣材(cai)料，并(bing)能方便地裝入和取(qu)出試(shi)(shi)(shi)樣。較簡單的(de)中場磁(ci)(ci)(ci)導計只使(shi)用一個U狀(zhuang)磁(ci)(ci)(ci)軛(e)，試(shi)(shi)(shi)樣可(ke)(ke)采用更小尺寸的(de)切片(pian)（見(jian)硅鋼(gang)(gang)片(pian)磁(ci)(ci)(ci)特性(xing)測量(liang)）。
由(you)于鐵(tie)(tie)(tie)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)質(zhi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)作(zuo)用(yong),導(dao)(dao)致螺線(xian)(xian)管(guan)內(nei)(nei)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)的(de)(de)(de)(de)(de)(de)(de)(de)(de)均(jun)勻(yun)性遭到破壞(huai),磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)測(ce)量(liang)(liang)(liang)線(xian)(xian)圈(quan)(quan)常數(shu)由(you)此產生變化(hua),使(shi)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)性能測(ce)量(liang)(liang)(liang)結果嚴重失真.所(suo)以,用(yong)中(zhong)(zhong)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)導(dao)(dao)計來(lai)測(ce)量(liang)(liang)(liang)軟磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)材(cai)料(liao)棒(bang)形(xing)試(shi)樣(yang)的(de)(de)(de)(de)(de)(de)(de)(de)(de)各(ge)項磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)性能是(shi)不(bu)適宜(yi)的(de)(de)(de)(de)(de)(de)(de)(de)(de).當把一(yi)個鐵(tie)(tie)(tie)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)質(zhi)封閉(bi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)盒子放人均(jun)勻(yun)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)中(zhong)(zhong)，則盒壁(bi)與(yu)其中(zhong)(zhong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)空(kong)(kong)間(jian)構成了并聯(lian)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)路。由(you)于鐵(tie)(tie)(tie)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)質(zhi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)相對磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)導(dao)(dao)率(lv)遠遠大(da)于空(kong)(kong)氣的(de)(de)(de)(de)(de)(de)(de)(de)(de)相對磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)導(dao)(dao)率(lv)，因(yin)此，空(kong)(kong)腔中(zhong)(zhong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)阻(zu)就遠遠大(da)于盒壁(bi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)阻(zu)，所(suo)以磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)的(de)(de)(de)(de)(de)(de)(de)(de)(de)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)力線(xian)(xian)幾乎(hu)全部從盒壁(bi)內(nei)(nei)通(tong)過(guo)，而空(kong)(kong)腔內(nei)(nei)僅有極(ji)少(shao)數(shu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)力線(xian)(xian)通(tong)過(guo), 因(yin)此，空(kong)(kong)腔內(nei)(nei)的(de)(de)(de)(de)(de)(de)(de)(de)(de)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)很弱。同樣(yang)的(de)(de)(de)(de)(de)(de)(de)(de)(de)原因(yin)，當螺管(guan)中(zhong)(zhong)有鐵(tie)(tie)(tie)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)質(zhi)試(shi)樣(yang)時，螺管(guan)中(zhong)(zhong)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)的(de)(de)(de)(de)(de)(de)(de)(de)(de)均(jun)勻(yun)性已遭到破壞(huai)，絕大(da)部分磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)力線(xian)(xian)也應(ying)(ying)通(tong)過(guo)鐵(tie)(tie)(tie)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)質(zhi)試(shi)樣(yang)，在磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)開路情況下(xia)只有少(shao)數(shu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)力線(xian)(xian)通(tong)過(guo)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)測(ce)量(liang)(liang)(liang)線(xian)(xian)圈(quan)(quan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)間(jian)隙，因(yin)此，測(ce)得磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)強度(du)就很小；在閉(bi)合磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)路情況下(xia)由(you)于磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)導(dao)(dao)計磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)扼體和(he)鐵(tie)(tie)(tie)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)質(zhi)試(shi)樣(yang)共同作(zuo)用(yong)，使(shi)較(jiao)多的(de)(de)(de)(de)(de)(de)(de)(de)(de)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)力線(xian)(xian)通(tong)過(guo)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)測(ce)量(liang)(liang)(liang)線(xian)(xian)圈(quan)(quan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)間(jian)隙，因(yin)此，測(ce)得磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)強度(du)就較(jiao)大(da) [1] 。強場(chang)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)導(dao)(dao)計于磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)化(hua)永(yong)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)材(cai)料(liao)（即硬磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)材(cai)料(liao)）試(shi)樣(yang)。又稱永(yong)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)導(dao)(dao)計。由(you)于永(yong)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)材(cai)料(liao)在測(ce)量(liang)(liang)(liang)與(yu)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)化(hua)時要求有很強而集中(zhong)(zhong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)，且永(yong)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)材(cai)料(liao)試(shi)樣(yang)多是(shi)開路形(xing)式，故專門制造了這種磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)導(dao)(dao)計。強場(chang)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)導(dao)(dao)計由(you)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)極(ji)、磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)軛、磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)化(hua)線(xian)(xian)圈(quan)(quan)等構成（圖2），試(shi)樣(yang)夾在可動磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)極(ji)與(yu)固(gu)定磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)極(ji)之間(jian)。為使(shi)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)化(hua)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)集中(zhong)(zhong)在試(shi)樣(yang)上，須(xu)使(shi)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)軛消耗的(de)(de)(de)(de)(de)(de)(de)(de)(de)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)化(hua)安(an)匝盡(jin)量(liang)(liang)(liang)少(shao)，因(yin)此磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)軛通(tong)常采用(yong)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)導(dao)(dao)率(lv)高的(de)(de)(de)(de)(de)(de)(de)(de)(de)材(cai)料(liao)，并且截面較(jiao)大(da)，制作(zuo)時要求有較(jiao)高的(de)(de)(de)(de)(de)(de)(de)(de)(de)工藝水平(ping)。磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)化(hua)線(xian)(xian)圈(quan)(quan)由(you)直流電(dian)源供(gong)電(dian)，其容(rong)量(liang)(liang)(liang)可滿(man)足產生足夠大(da)的(de)(de)(de)(de)(de)(de)(de)(de)(de)飽(bao)和(he)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)強度(du)Hm的(de)(de)(de)(de)(de)(de)(de)(de)(de)需要。Hm一(yi)般取被(bei)測(ce)材(cai)料(liao)內(nei)(nei)稟(bing)矯頑力Hcj的(de)(de)(de)(de)(de)(de)(de)(de)(de)3～5倍，電(dian)源的(de)(de)(de)(de)(de)(de)(de)(de)(de)穩定度(du)應(ying)(ying)保(bao)證在1分鐘內(nei)(nei)變化(hua)不(bu)超過(guo)0.1%。
計為快速檢(jian)驗和分選(xuan)永磁(ci)(ci)(ci)材料，常采(cai)用對稱雙軛(e)磁(ci)(ci)(ci)導計結構。它的(de)(de)(de)兩個U狀磁(ci)(ci)(ci)軛(e)*對稱，4個磁(ci)(ci)(ci)化線圈*相同，并串聯在一(yi)(yi)起。未(wei)放(fang)入(ru)試(shi)(shi)樣(yang)時，左右兩氣(qi)隙內(nei)的(de)(de)(de)磁(ci)(ci)(ci)通相等，中間(jian)(jian)氣(qi)隙內(nei)的(de)(de)(de)磁(ci)(ci)(ci)通為零。在一(yi)(yi)邊氣(qi)隙中放(fang)入(ru)試(shi)(shi)樣(yang)后，磁(ci)(ci)(ci)路平衡被破(po)壞，中間(jian)(jian)氣(qi)隙內(nei)存(cun)在有正比于試(shi)(shi)樣(yang)磁(ci)(ci)(ci)化強(qiang)度的(de)(de)(de)磁(ci)(ci)(ci)通。作(zuo)用于試(shi)(shi)樣(yang)的(de)(de)(de)磁(ci)(ci)(ci)場強(qiang)度，可在另(ling)一(yi)(yi)邊氣(qi)隙內(nei)測(ce)得。如在一(yi)(yi)邊氣(qi)隙內(nei)放(fang)入(ru)標(biao)準(zhun)試(shi)(shi)樣(yang)，則可對放(fang)在另(ling)一(yi)(yi)邊氣(qi)隙中的(de)(de)(de)試(shi)(shi)樣(yang)進行分選(xuan)
數字(zi)電(dian)(dian)(dian)(dian)容表(biao)(biao)是(shi)一(yi)(yi)種(zhong)智能型、性(xing)能穩定(ding)、高(gao)可靠性(xing)、3 5/6數字(zi)多用(yong)表(biao)(biao)，儀表(biao)(biao)采用(yong)33mm字(zi)高(gao)LCD顯(xian)示器，讀數清(qing)晰，顯(xian)示直(zhi)觀，操作(zuo)方便(bian)，可用(yong)來測(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)電(dian)(dian)(dian)(dian)阻(zu)、電(dian)(dian)(dian)(dian)容、二極管及(ji)通斷測(ce)(ce)(ce)(ce)(ce)(ce)試(shi)；同時(shi)還設有(you)單位符(fu)號顯(xian)示、數據(ju)保(bao)持、大小値測(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)，自動(dong)/手動(dong)量(liang)(liang)(liang)(liang)程(cheng)轉換、自動(dong)斷電(dian)(dian)(dian)(dian)、自動(dong)識別及(ji)報警(jing)功能。整(zheng)機(ji)采用(yong)了一(yi)(yi)個能直(zhi)接(jie)驅動(dong)LCD微處理器和(he)雙積(ji)分(fen)(fen)(fen)A/D轉換集成電(dian)(dian)(dian)(dian)路，一(yi)(yi)個提供高(gao)分(fen)(fen)(fen)辨力、高(gao)精度(du)的(de)(de)(de)(de)數字(zi)顯(xian)示驅動(dong)，該(gai)表(biao)(biao)功能齊全，測(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)準(zhun)確度(du)高(gao)，使用(yong)方便(bian)，是(shi)實(shi)驗室、工廠、無線電(dian)(dian)(dian)(dian)愛好(hao)者及(ji)家庭的(de)(de)(de)(de)理想工具。確認(ren)電(dian)(dian)(dian)(dian)池和(he)保(bao)險絲已(yi)正確安(an)裝；要(yao)測(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)容在(zai)(zai)測(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)前已(yi)充(chong)分(fen)(fen)(fen)放(fang)(fang)電(dian)(dian)(dian)(dian)；要(yao)測(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)容，其極性(xing)要(yao)與(yu)測(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)端子(zi)的(de)(de)(de)(de)極性(xing)一(yi)(yi)致(zhi)(zhi)；請一(yi)(yi)定(ding)注意，不要(yao)在(zai)(zai)測(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)端子(zi)加(jia)載電(dian)(dian)(dian)(dian)壓，否則(ze)將(jiang)導致(zhi)(zhi)嚴重的(de)(de)(de)(de)損(sun)害；不要(yao)嘗試(shi)短接(jie)兩個輸(shu)入端子(zi)，否則(ze)將(jiang)極大的(de)(de)(de)(de)浪費電(dian)(dian)(dian)(dian)池電(dian)(dian)(dian)(dian)量(liang)(liang)(liang)(liang)，并(bing)以(yi)過載顯(xian)示；如(ru)果被(bei)測(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)容器是(shi)未(wei)知的(de)(de)(de)(de)，請從小量(liang)(liang)(liang)(liang)程(cheng)開始測(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)，并(bing)逐步加(jia)大直(zhi)到得(de)到合(he)適的(de)(de)(de)(de)值。為(wei)快速檢驗和(he)分(fen)(fen)(fen)選(xuan)永磁(ci)材料，常采用(yong)對稱雙軛磁(ci)導計結構。它的(de)(de)(de)(de)兩個U狀磁(ci)軛*對稱，4個磁(ci)化線圈*相同，并(bing)串聯在(zai)(zai)一(yi)(yi)起。未(wei)放(fang)(fang)入試(shi)樣(yang)(yang)(yang)時(shi)，左右兩氣(qi)隙(xi)(xi)內(nei)(nei)的(de)(de)(de)(de)磁(ci)通相等，中(zhong)間(jian)氣(qi)隙(xi)(xi)內(nei)(nei)的(de)(de)(de)(de)磁(ci)通為(wei)零。在(zai)(zai)一(yi)(yi)邊氣(qi)隙(xi)(xi)中(zhong)放(fang)(fang)入試(shi)樣(yang)(yang)(yang)后，磁(ci)路平衡被(bei)破壞，中(zhong)間(jian)氣(qi)隙(xi)(xi)內(nei)(nei)存(cun)在(zai)(zai)有(you)正比于(yu)試(shi)樣(yang)(yang)(yang)磁(ci)化強度(du)的(de)(de)(de)(de)磁(ci)通。作(zuo)用(yong)于(yu)試(shi)樣(yang)(yang)(yang)的(de)(de)(de)(de)磁(ci)場強度(du)，可在(zai)(zai)另一(yi)(yi)邊氣(qi)隙(xi)(xi)內(nei)(nei)測(ce)(ce)(ce)(ce)(ce)(ce)得(de)。如(ru)在(zai)(zai)一(yi)(yi)邊氣(qi)隙(xi)(xi)內(nei)(nei)放(fang)(fang)入標準(zhun)試(shi)樣(yang)(yang)(yang)，則(ze)可對放(fang)(fang)在(zai)(zai)另一(yi)(yi)邊氣(qi)隙(xi)(xi)中(zhong)的(de)(de)(de)(de)試(shi)樣(yang)(yang)(yang)進行(xing)分(fen)(fen)(fen)選(xuan)。量(liang)(liang)(liang)(liang)程(cheng)選(xuan)擇
選擇(ze)(ze)功率表(biao)的(de)量(liang)程(cheng)就是選擇(ze)(ze)功率表(biao)中(zhong)的(de)電(dian)(dian)(dian)流(liu)量(liang)程(cheng)和(he)電(dian)(dian)(dian)壓(ya)量(liang)程(cheng)。使用時應使功率表(biao)中(zhong)的(de)電(dian)(dian)(dian)流(liu)量(liang)程(cheng)不(bu)(bu)小于(yu)負(fu)(fu)(fu)載(zai)(zai)(zai)電(dian)(dian)(dian)流(liu)，電(dian)(dian)(dian)壓(ya)量(liang)程(cheng)不(bu)(bu)低于(yu)負(fu)(fu)(fu)載(zai)(zai)(zai)電(dian)(dian)(dian)壓(ya)，而不(bu)(bu)能(neng)僅從功率量(liang)程(cheng)來(lai)考慮(lv)。例(li)如，兩只(zhi)功率表(biao)，量(liang)程(cheng)分別是IA、300V和(he)2A、150V，由(you)計(ji)算可知其功率量(liang)程(cheng)均為300W，如果要測量(liang)一負(fu)(fu)(fu)載(zai)(zai)(zai)電(dian)(dian)(dian)壓(ya)為220V、電(dian)(dian)(dian)流(liu)為IA的(de)負(fu)(fu)(fu)載(zai)(zai)(zai)功率時應逸用IA、300V的(de)功率表(biao)，而2A、150V的(de)功率表(biao)雖功率量(liang)程(cheng)也(ye)大于(yu)負(fu)(fu)(fu)載(zai)(zai)(zai)功率，但是由(you)于(yu)負(fu)(fu)(fu)載(zai)(zai)(zai)電(dian)(dian)(dian)壓(ya)高于(yu)功率表(biao)所(suo)能(neng)承受的(de)電(dian)(dian)(dian)壓(ya)150V，故(gu)不(bu)(bu)能(neng)使用。所(suo)以，在測量(liang)功率前要根據負(fu)(fu)(fu)載(zai)(zai)(zai)的(de)額定電(dian)(dian)(dian)壓(ya)和(he)額定電(dian)(dian)(dian)流(liu)來(lai)選擇(ze)(ze)功率表(biao)的(de)量(liang)程(cheng)。
測(ce)(ce)(ce)量(liang)(liang)線(xian)(xian)(xian)路電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動系測(ce)(ce)(ce)量(liang)(liang)機構的(de)(de)(de)(de)(de)(de)(de)(de)轉動力矩方(fang)向和(he)兩(liang)線(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)中的(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)方(fang)向有(you)關，為(wei)了(le)防止電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動系功(gong)(gong)率(lv)(lv)(lv)(lv)表(biao)(biao)(biao)(biao)的(de)(de)(de)(de)(de)(de)(de)(de)指針反偏，接(jie)(jie)(jie)線(xian)(xian)(xian)時(shi)(shi)(shi)(shi)(shi)功(gong)(gong)率(lv)(lv)(lv)(lv)表(biao)(biao)(biao)(biao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)線(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)標有(you)“·”號的(de)(de)(de)(de)(de)(de)(de)(de)端(duan)鈕(niu)必須接(jie)(jie)(jie)到(dao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源的(de)(de)(de)(de)(de)(de)(de)(de)正(zheng)，而電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)線(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)的(de)(de)(de)(de)(de)(de)(de)(de)另(ling)一(yi)端(duan)則(ze)與(yu)負(fu)(fu)載(zai)相(xiang)連，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)線(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)以(yi)(yi)串聯(lian)形式(shi)(shi)接(jie)(jie)(jie)入電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路中。功(gong)(gong)率(lv)(lv)(lv)(lv)表(biao)(biao)(biao)(biao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)線(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)標有(you)“·”號的(de)(de)(de)(de)(de)(de)(de)(de)端(duan)鈕(niu)可(ke)(ke)(ke)以(yi)(yi)接(jie)(jie)(jie)到(dao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源端(duan)鈕(niu)的(de)(de)(de)(de)(de)(de)(de)(de)任一(yi)端(duan)上(shang)(shang)，而另(ling)一(yi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)端(duan)鈕(niu)則(ze)跨接(jie)(jie)(jie)到(dao)負(fu)(fu)載(zai)的(de)(de)(de)(de)(de)(de)(de)(de)另(ling)一(yi)端(duan)，當負(fu)(fu)載(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)遠(yuan)(yuan)(yuan)遠(yuan)(yuan)(yuan)大(da)于(yu)(yu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)線(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)的(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)時(shi)(shi)(shi)(shi)(shi)，應(ying)采用(yong)(yong)(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)線(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)前(qian)接(jie)(jie)(jie)法。這時(shi)(shi)(shi)(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)線(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)的(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)是負(fu)(fu)載(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)和(he)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)線(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)之(zhi)和(he)，功(gong)(gong)率(lv)(lv)(lv)(lv)表(biao)(biao)(biao)(biao)測(ce)(ce)(ce)量(liang)(liang)的(de)(de)(de)(de)(de)(de)(de)(de)是負(fu)(fu)載(zai)功(gong)(gong)率(lv)(lv)(lv)(lv)和(he)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)線(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)功(gong)(gong)率(lv)(lv)(lv)(lv)之(zhi)和(he)。如果負(fu)(fu)載(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)遠(yuan)(yuan)(yuan)遠(yuan)(yuan)(yuan)大(da)于(yu)(yu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)線(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)的(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)，則(ze)可(ke)(ke)(ke)以(yi)(yi)略去電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)線(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)分壓(ya)(ya)所(suo)(suo)造成的(de)(de)(de)(de)(de)(de)(de)(de)影響，測(ce)(ce)(ce)量(liang)(liang)結(jie)果比較(jiao)接(jie)(jie)(jie)近負(fu)(fu)載(zai)的(de)(de)(de)(de)(de)(de)(de)(de)實際功(gong)(gong)率(lv)(lv)(lv)(lv)值(zhi)。當負(fu)(fu)載(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)遠(yuan)(yuan)(yuan)遠(yuan)(yuan)(yuan)小(xiao)(xiao)(xiao)于(yu)(yu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)線(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)時(shi)(shi)(shi)(shi)(shi)，應(ying)采用(yong)(yong)(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)線(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)后(hou)接(jie)(jie)(jie)法 。這時(shi)(shi)(shi)(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)線(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)兩(liang)端(duan)的(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)雖然(ran)等于(yu)(yu)負(fu)(fu)載(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)，但電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)線(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)中的(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)卻(que)等于(yu)(yu)負(fu)(fu)載(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)與(yu)功(gong)(gong)率(lv)(lv)(lv)(lv)表(biao)(biao)(biao)(biao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)線(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)中的(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)之(zhi)和(he)，測(ce)(ce)(ce)量(liang)(liang)時(shi)(shi)(shi)(shi)(shi)功(gong)(gong)率(lv)(lv)(lv)(lv)讀數(shu)為(wei)負(fu)(fu)載(zai)功(gong)(gong)率(lv)(lv)(lv)(lv)與(yu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)線(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)功(gong)(gong)率(lv)(lv)(lv)(lv)之(zhi)和(he)。由于(yu)(yu)此時(shi)(shi)(shi)(shi)(shi)負(fu)(fu)載(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)遠(yuan)(yuan)(yuan)小(xiao)(xiao)(xiao)于(yu)(yu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)線(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)，所(suo)(suo)以(yi)(yi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)線(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)分流(liu)(liu)(liu)作用(yong)(yong)(yong)(yong)大(da)大(da)減(jian)(jian)小(xiao)(xiao)(xiao)，其(qi)對測(ce)(ce)(ce)量(liang)(liang)結(jie)果的(de)(de)(de)(de)(de)(de)(de)(de)影響也可(ke)(ke)(ke)以(yi)(yi)大(da)為(wei)減(jian)(jian)小(xiao)(xiao)(xiao)。如界被測(ce)(ce)(ce)負(fu)(fu)載(zai)本(ben)身功(gong)(gong)率(lv)(lv)(lv)(lv)較(jiao)大(da)，可(ke)(ke)(ke)以(yi)(yi)不考慮功(gong)(gong)率(lv)(lv)(lv)(lv)表(biao)(biao)(biao)(biao)本(ben)身的(de)(de)(de)(de)(de)(de)(de)(de)功(gong)(gong)率(lv)(lv)(lv)(lv)對測(ce)(ce)(ce)量(liang)(liang)結(jie)果的(de)(de)(de)(de)(de)(de)(de)(de)影響，則(ze)兩(liang)種接(jie)(jie)(jie)法可(ke)(ke)(ke)以(yi)(yi)任意選(xuan)擇。選(xuan)用(yong)(yong)(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)線(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)前(qian)接(jie)(jie)(jie)法，因為(wei)功(gong)(gong)率(lv)(lv)(lv)(lv)表(biao)(biao)(biao)(biao)中電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)線(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)的(de)(de)(de)(de)(de)(de)(de)(de)功(gong)(gong)率(lv)(lv)(lv)(lv)一(yi)般(ban)都小(xiao)(xiao)(xiao)于(yu)(yu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)線(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)支路的(de)(de)(de)(de)(de)(de)(de)(de)功(gong)(gong)率(lv)(lv)(lv)(lv)。正(zheng)確(que)讀數(shu)一(yi)般(ban)安(an)裝(zhuang)式(shi)(shi)功(gong)(gong)率(lv)(lv)(lv)(lv)表(biao)(biao)(biao)(biao)為(wei)直(zhi)讀單(dan)量(liang)(liang)程(cheng)式(shi)(shi)，表(biao)(biao)(biao)(biao)上(shang)(shang)的(de)(de)(de)(de)(de)(de)(de)(de)示(shi)數(shu)即為(wei)功(gong)(gong)率(lv)(lv)(lv)(lv)數(shu)。但便(bian)攜(xie)式(shi)(shi)功(gong)(gong)率(lv)(lv)(lv)(lv)表(biao)(biao)(biao)(biao)一(yi)般(ban)為(wei)多量(liang)(liang)程(cheng)式(shi)(shi)，在(zai)表(biao)(biao)(biao)(biao)的(de)(de)(de)(de)(de)(de)(de)(de)標度(du)尺(chi)上(shang)(shang)不直(zhi)接(jie)(jie)(jie)標注(zhu)示(shi)數(shu)，只(zhi)標注(zhu)分格(ge)(ge)。在(zai)選(xuan)用(yong)(yong)(yong)(yong)不同的(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)與(yu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)量(liang)(liang)程(cheng)時(shi)(shi)(shi)(shi)(shi)，每一(yi)分格(ge)(ge)都可(ke)(ke)(ke)以(yi)(yi)表(biao)(biao)(biao)(biao)示(shi)不同的(de)(de)(de)(de)(de)(de)(de)(de)功(gong)(gong)率(lv)(lv)(lv)(lv)數(shu)。在(zai)讀數(shu)時(shi)(shi)(shi)(shi)(shi)，應(ying)先根據所(suo)(suo)選(xuan)的(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)量(liang)(liang)程(cheng)U、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)量(liang)(liang)程(cheng)I以(yi)(yi)及標度(du)尺(chi)滿量(liang)(liang)程(cheng)時(shi)(shi)(shi)(shi)(shi)的(de)(de)(de)(de)(de)(de)(de)(de)格(ge)(ge)數(shu)&，求出(chu)每格(ge)(ge)瓦數(shu)（又稱功(gong)(gong)率(lv)(lv)(lv)(lv)表(biao)(biao)(biao)(biao)常(chang)數(shu)）C，然(ran)后(hou)再乘上(shang)(shang)指針偏轉的(de)(de)(de)(de)(de)(de)(de)(de)格(ge)(ge)數(shu)夕，就可(ke)(ke)(ke)得到(dao)所(suo)(suo)測(ce)(ce)(ce)功(gong)(gong)率(lv)(lv)(lv)(lv)P.用(yong)(yong)(yong)(yong)于(yu)(yu)磁(ci)(ci)(ci)化(hua)開磁(ci)(ci)(ci)路軟磁(ci)(ci)(ci)材料(liao)(liao)試(shi)樣(yang)。又稱軟磁(ci)(ci)(ci)磁(ci)(ci)(ci)導(dao)計(ji)(ji)。其(qi)結(jie)構見圖1。材料(liao)(liao)試(shi)樣(yang)夾在(zai)兩(liang)U狀磁(ci)(ci)(ci)軛之(zhi)間，并(bing)穿過均勻分布的(de)(de)(de)(de)(de)(de)(de)(de)磁(ci)(ci)(ci)化(hua)線(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)。磁(ci)(ci)(ci)軛由硅鋼片疊制(zhi)而成。用(yong)(yong)(yong)(yong)中場磁(ci)(ci)(ci)導(dao)計(ji)(ji)代(dai)替愛潑斯坦儀測(ce)(ce)(ce)量(liang)(liang)硅鋼片等的(de)(de)(de)(de)(de)(de)(de)(de)磁(ci)(ci)(ci)特性和(he)鐵(tie)損，無需(xu)剪(jian)裁，可(ke)(ke)(ke)節(jie)省大(da)量(liang)(liang)試(shi)樣(yang)材料(liao)(liao)，并(bing)能方(fang)便(bian)地裝(zhuang)入和(he)取出(chu)試(shi)樣(yang)。較(jiao)簡單(dan)的(de)(de)(de)(de)(de)(de)(de)(de)中場磁(ci)(ci)(ci)導(dao)計(ji)(ji)只(zhi)使(shi)用(yong)(yong)(yong)(yong)一(yi)個U狀磁(ci)(ci)(ci)軛，試(shi)樣(yang)可(ke)(ke)(ke)采用(yong)(yong)(yong)(yong)更小(xiao)(xiao)(xiao)尺(chi)寸的(de)(de)(de)(de)(de)(de)(de)(de)切片（見硅鋼片磁(ci)(ci)(ci)特性測(ce)(ce)(ce)量(liang)(liang)）。
由(you)(you)(you)于(yu)(yu)(yu)鐵磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)質的(de)(de)(de)(de)(de)(de)(de)作用(yong)(yong)(yong),導致螺線(xian)(xian)(xian)(xian)管(guan)內(nei)(nei)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)的(de)(de)(de)(de)(de)(de)(de)均(jun)(jun)勻性遭到破壞,磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)測(ce)量(liang)線(xian)(xian)(xian)(xian)圈(quan)常(chang)數由(you)(you)(you)此產生(sheng)變化(hua),使磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)性能測(ce)量(liang)結(jie)果嚴重(zhong)失真.所以(yi)(yi),用(yong)(yong)(yong)中(zhong)(zhong)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)導計(ji)(ji)來測(ce)量(liang)軟磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)材(cai)(cai)料(liao)(liao)棒(bang)形試(shi)樣(yang)的(de)(de)(de)(de)(de)(de)(de)各項磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)性能是(shi)不(bu)(bu)適宜的(de)(de)(de)(de)(de)(de)(de).當把一個鐵磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)質封閉的(de)(de)(de)(de)(de)(de)(de)盒子(zi)放人(ren)均(jun)(jun)勻磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)中(zhong)(zhong)，則盒壁與其中(zhong)(zhong)的(de)(de)(de)(de)(de)(de)(de)空間構(gou)成了并聯磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)路(lu)(lu)。由(you)(you)(you)于(yu)(yu)(yu)鐵磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)質的(de)(de)(de)(de)(de)(de)(de)相(xiang)對磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)導率(lv)遠遠大(da)于(yu)(yu)(yu)空氣的(de)(de)(de)(de)(de)(de)(de)相(xiang)對磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)導率(lv)，因(yin)此，空腔中(zhong)(zhong)的(de)(de)(de)(de)(de)(de)(de)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)阻就(jiu)(jiu)遠遠大(da)于(yu)(yu)(yu)盒壁的(de)(de)(de)(de)(de)(de)(de)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)阻，所以(yi)(yi)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)的(de)(de)(de)(de)(de)(de)(de)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)力(li)(li)線(xian)(xian)(xian)(xian)幾(ji)乎全部(bu)從盒壁內(nei)(nei)通(tong)(tong)過(guo)，而空腔內(nei)(nei)僅有(you)(you)極少(shao)數的(de)(de)(de)(de)(de)(de)(de)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)力(li)(li)線(xian)(xian)(xian)(xian)通(tong)(tong)過(guo), 因(yin)此，空腔內(nei)(nei)的(de)(de)(de)(de)(de)(de)(de)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)很弱。同樣(yang)的(de)(de)(de)(de)(de)(de)(de)原因(yin)，當螺管(guan)中(zhong)(zhong)有(you)(you)鐵磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)質試(shi)樣(yang)時(shi)，螺管(guan)中(zhong)(zhong)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)的(de)(de)(de)(de)(de)(de)(de)均(jun)(jun)勻性已(yi)遭到破壞，絕(jue)大(da)部(bu)分(fen)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)力(li)(li)線(xian)(xian)(xian)(xian)也(ye)應通(tong)(tong)過(guo)鐵磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)質試(shi)樣(yang)，在(zai)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)開(kai)路(lu)(lu)情(qing)況下只有(you)(you)少(shao)數的(de)(de)(de)(de)(de)(de)(de)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)力(li)(li)線(xian)(xian)(xian)(xian)通(tong)(tong)過(guo)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)測(ce)量(liang)線(xian)(xian)(xian)(xian)圈(quan)的(de)(de)(de)(de)(de)(de)(de)間隙，因(yin)此，測(ce)得(de)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)強(qiang)度(du)就(jiu)(jiu)很小；在(zai)閉合磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)路(lu)(lu)情(qing)況下由(you)(you)(you)于(yu)(yu)(yu)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)導計(ji)(ji)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)扼(e)體和(he)鐵磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)質試(shi)樣(yang)共同作用(yong)(yong)(yong)，使較(jiao)多的(de)(de)(de)(de)(de)(de)(de)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)力(li)(li)線(xian)(xian)(xian)(xian)通(tong)(tong)過(guo)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)測(ce)量(liang)線(xian)(xian)(xian)(xian)圈(quan)的(de)(de)(de)(de)(de)(de)(de)間隙，因(yin)此，測(ce)得(de)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)強(qiang)度(du)就(jiu)(jiu)較(jiao)大(da) [1] 。強(qiang)場(chang)(chang)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)導計(ji)(ji)于(yu)(yu)(yu)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)化(hua)永(yong)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)材(cai)(cai)料(liao)(liao)（即硬(ying)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)材(cai)(cai)料(liao)(liao)）試(shi)樣(yang)。又稱永(yong)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)導計(ji)(ji)。由(you)(you)(you)于(yu)(yu)(yu)永(yong)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)材(cai)(cai)料(liao)(liao)在(zai)測(ce)量(liang)與磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)化(hua)時(shi)要(yao)求有(you)(you)很強(qiang)而集(ji)中(zhong)(zhong)的(de)(de)(de)(de)(de)(de)(de)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)，且(qie)永(yong)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)材(cai)(cai)料(liao)(liao)試(shi)樣(yang)多是(shi)開(kai)路(lu)(lu)形式，故專門制造(zao)了這(zhe)種磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)導計(ji)(ji)。強(qiang)場(chang)(chang)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)導計(ji)(ji)由(you)(you)(you)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)極、磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)軛、磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)化(hua)線(xian)(xian)(xian)(xian)圈(quan)等構(gou)成（圖2），試(shi)樣(yang)夾在(zai)可(ke)動磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)極與固定(ding)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)極之間。為使磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)化(hua)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)集(ji)中(zhong)(zhong)在(zai)試(shi)樣(yang)上，須使磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)軛消(xiao)耗(hao)的(de)(de)(de)(de)(de)(de)(de)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)化(hua)安(an)匝盡量(liang)少(shao)，因(yin)此磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)軛通(tong)(tong)常(chang)采(cai)用(yong)(yong)(yong)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)導率(lv)高的(de)(de)(de)(de)(de)(de)(de)材(cai)(cai)料(liao)(liao)，并且(qie)截面(mian)較(jiao)大(da)，制作時(shi)要(yao)求有(you)(you)較(jiao)高的(de)(de)(de)(de)(de)(de)(de)工藝水平。磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)化(hua)線(xian)(xian)(xian)(xian)圈(quan)由(you)(you)(you)直流電源供電，其容量(liang)可(ke)滿足(zu)產生(sheng)足(zu)夠大(da)的(de)(de)(de)(de)(de)(de)(de)飽(bao)和(he)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)強(qiang)度(du)Hm的(de)(de)(de)(de)(de)(de)(de)需要(yao)。Hm一般取被測(ce)材(cai)(cai)料(liao)(liao)內(nei)(nei)稟矯(jiao)頑力(li)(li)Hcj的(de)(de)(de)(de)(de)(de)(de)3～5倍，電源的(de)(de)(de)(de)(de)(de)(de)穩定(ding)度(du)應保證在(zai)1分(fen)鐘內(nei)(nei)變化(hua)不(bu)(bu)超過(guo)0.1%。
計為(wei)快速檢驗和分選永磁(ci)(ci)材(cai)料，常采用對(dui)稱雙軛(e)磁(ci)(ci)導計結(jie)構。它的(de)兩個U狀磁(ci)(ci)軛(e)*對(dui)稱，4個磁(ci)(ci)化(hua)線圈(quan)*相同(tong)，并串聯在一(yi)起。未放(fang)入(ru)(ru)試樣(yang)時，左(zuo)右兩氣(qi)隙(xi)內的(de)磁(ci)(ci)通(tong)相等，中(zhong)(zhong)(zhong)間氣(qi)隙(xi)內的(de)磁(ci)(ci)通(tong)為(wei)零(ling)。在一(yi)邊(bian)氣(qi)隙(xi)中(zhong)(zhong)(zhong)放(fang)入(ru)(ru)試樣(yang)后，磁(ci)(ci)路平(ping)衡被破(po)壞，中(zhong)(zhong)(zhong)間氣(qi)隙(xi)內存在有正比于(yu)試樣(yang)磁(ci)(ci)化(hua)強度(du)的(de)磁(ci)(ci)通(tong)。作用于(yu)試樣(yang)的(de)磁(ci)(ci)場強度(du)，可在另一(yi)邊(bian)氣(qi)隙(xi)內測(ce)得。如在一(yi)邊(bian)氣(qi)隙(xi)內放(fang)入(ru)(ru)標(biao)準(zhun)試樣(yang)，則可對(dui)放(fang)在另一(yi)邊(bian)氣(qi)隙(xi)中(zhong)(zhong)(zhong)的(de)試樣(yang)進行分選
數(shu)字(zi)電(dian)(dian)(dian)容(rong)表(biao)(biao)(biao)是一(yi)(yi)種智能型、性(xing)(xing)能穩定、高(gao)可靠性(xing)(xing)、3 5/6數(shu)字(zi)多用(yong)表(biao)(biao)(biao)，儀表(biao)(biao)(biao)采(cai)(cai)(cai)用(yong)33mm字(zi)高(gao)LCD顯(xian)示(shi)器(qi)，讀數(shu)清晰(xi)，顯(xian)示(shi)直觀(guan)，操作(zuo)(zuo)方便(bian)，可用(yong)來測(ce)(ce)(ce)量(liang)(liang)(liang)電(dian)(dian)(dian)阻、電(dian)(dian)(dian)容(rong)、二極(ji)管及(ji)通斷測(ce)(ce)(ce)試；同時還設(she)有單位符(fu)號顯(xian)示(shi)、數(shu)據保持、大小値測(ce)(ce)(ce)量(liang)(liang)(liang)，自(zi)動(dong)/手動(dong)量(liang)(liang)(liang)程(cheng)(cheng)轉(zhuan)換、自(zi)動(dong)斷電(dian)(dian)(dian)、自(zi)動(dong)識別及(ji)報(bao)警功能。整機采(cai)(cai)(cai)用(yong)了一(yi)(yi)個(ge)能直接(jie)驅動(dong)LCD微處(chu)理(li)器(qi)和雙積(ji)分(fen)A/D轉(zhuan)換集成電(dian)(dian)(dian)路，一(yi)(yi)個(ge)提供高(gao)分(fen)辨力、高(gao)精度(du)的(de)(de)(de)(de)數(shu)字(zi)顯(xian)示(shi)驅動(dong)，該(gai)表(biao)(biao)(biao)功能齊全，測(ce)(ce)(ce)量(liang)(liang)(liang)準(zhun)確(que)度(du)高(gao)，使用(yong)方便(bian)，是實驗室(shi)、工廠、無線(xian)電(dian)(dian)(dian)愛好者及(ji)家庭的(de)(de)(de)(de)理(li)想(xiang)工具。確(que)認電(dian)(dian)(dian)池和保險絲已(yi)(yi)正確(que)安裝；要(yao)測(ce)(ce)(ce)量(liang)(liang)(liang)的(de)(de)(de)(de)電(dian)(dian)(dian)容(rong)在(zai)測(ce)(ce)(ce)量(liang)(liang)(liang)前已(yi)(yi)充分(fen)放(fang)電(dian)(dian)(dian)；要(yao)測(ce)(ce)(ce)量(liang)(liang)(liang)的(de)(de)(de)(de)電(dian)(dian)(dian)容(rong)，其極(ji)性(xing)(xing)要(yao)與測(ce)(ce)(ce)量(liang)(liang)(liang)端子(zi)(zi)的(de)(de)(de)(de)極(ji)性(xing)(xing)一(yi)(yi)致；請(qing)一(yi)(yi)定注意，不(bu)(bu)要(yao)在(zai)測(ce)(ce)(ce)量(liang)(liang)(liang)端子(zi)(zi)加載電(dian)(dian)(dian)壓，否(fou)則將(jiang)導(dao)致嚴重(zhong)的(de)(de)(de)(de)損害(hai)；不(bu)(bu)要(yao)嘗(chang)試短接(jie)兩個(ge)輸入端子(zi)(zi)，否(fou)則將(jiang)極(ji)大的(de)(de)(de)(de)浪費電(dian)(dian)(dian)池電(dian)(dian)(dian)量(liang)(liang)(liang)，并以(yi)過載顯(xian)示(shi)；如果被測(ce)(ce)(ce)量(liang)(liang)(liang)的(de)(de)(de)(de)電(dian)(dian)(dian)容(rong)器(qi)是未知的(de)(de)(de)(de)，請(qing)從小量(liang)(liang)(liang)程(cheng)(cheng)開始(shi)測(ce)(ce)(ce)量(liang)(liang)(liang)，并逐步加大直到得到合適的(de)(de)(de)(de)值(zhi)。為(wei)(wei)快速檢驗和分(fen)選(xuan)(xuan)永磁(ci)材料，常采(cai)(cai)(cai)用(yong)對稱雙軛磁(ci)導(dao)計(ji)結構。它的(de)(de)(de)(de)兩個(ge)U狀磁(ci)軛*對稱，4個(ge)磁(ci)化(hua)(hua)線(xian)圈*相(xiang)(xiang)同，并串聯在(zai)一(yi)(yi)起(qi)。未放(fang)入試樣(yang)時，左右(you)兩氣隙(xi)內(nei)(nei)(nei)的(de)(de)(de)(de)磁(ci)通相(xiang)(xiang)等，中(zhong)間(jian)氣隙(xi)內(nei)(nei)(nei)的(de)(de)(de)(de)磁(ci)通為(wei)(wei)零。在(zai)一(yi)(yi)邊氣隙(xi)中(zhong)放(fang)入試樣(yang)后，磁(ci)路平(ping)衡(heng)被破壞，中(zhong)間(jian)氣隙(xi)內(nei)(nei)(nei)存在(zai)有正比于試樣(yang)磁(ci)化(hua)(hua)強(qiang)度(du)的(de)(de)(de)(de)磁(ci)通。作(zuo)(zuo)用(yong)于試樣(yang)的(de)(de)(de)(de)磁(ci)場強(qiang)度(du)，可在(zai)另一(yi)(yi)邊氣隙(xi)內(nei)(nei)(nei)測(ce)(ce)(ce)得。如在(zai)一(yi)(yi)邊氣隙(xi)內(nei)(nei)(nei)放(fang)入標(biao)準(zhun)試樣(yang)，則可對放(fang)在(zai)另一(yi)(yi)邊氣隙(xi)中(zhong)的(de)(de)(de)(de)試樣(yang)進行(xing)分(fen)選(xuan)(xuan)。量(liang)(liang)(liang)程(cheng)(cheng)選(xuan)(xuan)擇(ze)
選(xuan)擇(ze)功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)表(biao)的(de)(de)(de)量(liang)(liang)(liang)(liang)程(cheng)就是(shi)選(xuan)擇(ze)功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)表(biao)中(zhong)的(de)(de)(de)電(dian)(dian)流(liu)量(liang)(liang)(liang)(liang)程(cheng)和(he)電(dian)(dian)壓(ya)量(liang)(liang)(liang)(liang)程(cheng)。使用時(shi)應(ying)使功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)表(biao)中(zhong)的(de)(de)(de)電(dian)(dian)流(liu)量(liang)(liang)(liang)(liang)程(cheng)不(bu)小于(yu)負載電(dian)(dian)流(liu)，電(dian)(dian)壓(ya)量(liang)(liang)(liang)(liang)程(cheng)不(bu)低于(yu)負載電(dian)(dian)壓(ya)，而(er)不(bu)能僅從功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)量(liang)(liang)(liang)(liang)程(cheng)來(lai)考(kao)慮。例(li)如，兩只(zhi)功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)表(biao)，量(liang)(liang)(liang)(liang)程(cheng)分別是(shi)IA、300V和(he)2A、150V，由(you)計算可知其功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)量(liang)(liang)(liang)(liang)程(cheng)均為300W，如果要測(ce)量(liang)(liang)(liang)(liang)一負載電(dian)(dian)壓(ya)為220V、電(dian)(dian)流(liu)為IA的(de)(de)(de)負載功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)時(shi)應(ying)逸用IA、300V的(de)(de)(de)功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)表(biao)，而(er)2A、150V的(de)(de)(de)功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)表(biao)雖(sui)功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)量(liang)(liang)(liang)(liang)程(cheng)也大(da)于(yu)負載功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)，但是(shi)由(you)于(yu)負載電(dian)(dian)壓(ya)高(gao)于(yu)功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)表(biao)所(suo)能承受的(de)(de)(de)電(dian)(dian)壓(ya)150V，故不(bu)能使用。所(suo)以，在測(ce)量(liang)(liang)(liang)(liang)功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)前要根據負載的(de)(de)(de)額定電(dian)(dian)壓(ya)和(he)額定電(dian)(dian)流(liu)來(lai)選(xuan)擇(ze)功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)表(biao)的(de)(de)(de)量(liang)(liang)(liang)(liang)程(cheng)。
測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)線(xian)(xian)(xian)路(lu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)系測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)機構的(de)(de)(de)(de)(de)(de)(de)(de)轉動(dong)力矩方向和兩(liang)線(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)中(zhong)的(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)方向有關，為(wei)了(le)防(fang)止(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)系功(gong)(gong)(gong)(gong)(gong)(gong)率(lv)(lv)(lv)表(biao)的(de)(de)(de)(de)(de)(de)(de)(de)指針反(fan)偏，接(jie)(jie)線(xian)(xian)(xian)時(shi)(shi)(shi)(shi)(shi)功(gong)(gong)(gong)(gong)(gong)(gong)率(lv)(lv)(lv)表(biao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)線(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)標(biao)(biao)(biao)(biao)有“·”號的(de)(de)(de)(de)(de)(de)(de)(de)端(duan)(duan)鈕(niu)必須接(jie)(jie)到(dao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源的(de)(de)(de)(de)(de)(de)(de)(de)正，而電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)線(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)的(de)(de)(de)(de)(de)(de)(de)(de)另一(yi)(yi)端(duan)(duan)則(ze)(ze)與(yu)負(fu)(fu)(fu)(fu)(fu)(fu)載(zai)(zai)(zai)(zai)(zai)相連，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)線(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)以串聯形式(shi)接(jie)(jie)入(ru)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)中(zhong)。功(gong)(gong)(gong)(gong)(gong)(gong)率(lv)(lv)(lv)表(biao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)線(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)標(biao)(biao)(biao)(biao)有“·”號的(de)(de)(de)(de)(de)(de)(de)(de)端(duan)(duan)鈕(niu)可(ke)以接(jie)(jie)到(dao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源端(duan)(duan)鈕(niu)的(de)(de)(de)(de)(de)(de)(de)(de)任一(yi)(yi)端(duan)(duan)上(shang)(shang)，而另一(yi)(yi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)端(duan)(duan)鈕(niu)則(ze)(ze)跨接(jie)(jie)到(dao)負(fu)(fu)(fu)(fu)(fu)(fu)載(zai)(zai)(zai)(zai)(zai)的(de)(de)(de)(de)(de)(de)(de)(de)另一(yi)(yi)端(duan)(duan)，當(dang)負(fu)(fu)(fu)(fu)(fu)(fu)載(zai)(zai)(zai)(zai)(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)遠(yuan)(yuan)遠(yuan)(yuan)大(da)于(yu)(yu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)線(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)的(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)時(shi)(shi)(shi)(shi)(shi)，應(ying)采(cai)(cai)(cai)用(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)線(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)前接(jie)(jie)法(fa)(fa)。這時(shi)(shi)(shi)(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)線(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)的(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)是負(fu)(fu)(fu)(fu)(fu)(fu)載(zai)(zai)(zai)(zai)(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)和電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)線(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)之(zhi)和，功(gong)(gong)(gong)(gong)(gong)(gong)率(lv)(lv)(lv)表(biao)測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)的(de)(de)(de)(de)(de)(de)(de)(de)是負(fu)(fu)(fu)(fu)(fu)(fu)載(zai)(zai)(zai)(zai)(zai)功(gong)(gong)(gong)(gong)(gong)(gong)率(lv)(lv)(lv)和電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)線(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)功(gong)(gong)(gong)(gong)(gong)(gong)率(lv)(lv)(lv)之(zhi)和。如果負(fu)(fu)(fu)(fu)(fu)(fu)載(zai)(zai)(zai)(zai)(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)遠(yuan)(yuan)遠(yuan)(yuan)大(da)于(yu)(yu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)線(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)的(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)，則(ze)(ze)可(ke)以略(lve)去(qu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)線(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)分(fen)(fen)壓(ya)(ya)(ya)(ya)所(suo)造成的(de)(de)(de)(de)(de)(de)(de)(de)影(ying)響，測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)結(jie)果比較接(jie)(jie)近負(fu)(fu)(fu)(fu)(fu)(fu)載(zai)(zai)(zai)(zai)(zai)的(de)(de)(de)(de)(de)(de)(de)(de)實際功(gong)(gong)(gong)(gong)(gong)(gong)率(lv)(lv)(lv)值(zhi)。當(dang)負(fu)(fu)(fu)(fu)(fu)(fu)載(zai)(zai)(zai)(zai)(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)遠(yuan)(yuan)遠(yuan)(yuan)小(xiao)于(yu)(yu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)線(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)時(shi)(shi)(shi)(shi)(shi)，應(ying)采(cai)(cai)(cai)用(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)線(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)后接(jie)(jie)法(fa)(fa) 。這時(shi)(shi)(shi)(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)線(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)兩(liang)端(duan)(duan)的(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)雖(sui)然(ran)等于(yu)(yu)負(fu)(fu)(fu)(fu)(fu)(fu)載(zai)(zai)(zai)(zai)(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)，但電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)線(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)中(zhong)的(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)卻等于(yu)(yu)負(fu)(fu)(fu)(fu)(fu)(fu)載(zai)(zai)(zai)(zai)(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)與(yu)功(gong)(gong)(gong)(gong)(gong)(gong)率(lv)(lv)(lv)表(biao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)線(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)中(zhong)的(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)之(zhi)和，測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)時(shi)(shi)(shi)(shi)(shi)功(gong)(gong)(gong)(gong)(gong)(gong)率(lv)(lv)(lv)讀數(shu)(shu)(shu)(shu)為(wei)負(fu)(fu)(fu)(fu)(fu)(fu)載(zai)(zai)(zai)(zai)(zai)功(gong)(gong)(gong)(gong)(gong)(gong)率(lv)(lv)(lv)與(yu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)線(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)功(gong)(gong)(gong)(gong)(gong)(gong)率(lv)(lv)(lv)之(zhi)和。由于(yu)(yu)此時(shi)(shi)(shi)(shi)(shi)負(fu)(fu)(fu)(fu)(fu)(fu)載(zai)(zai)(zai)(zai)(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)遠(yuan)(yuan)小(xiao)于(yu)(yu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)線(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)，所(suo)以電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)線(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)分(fen)(fen)流(liu)(liu)作用(yong)(yong)大(da)大(da)減(jian)小(xiao)，其對(dui)測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)結(jie)果的(de)(de)(de)(de)(de)(de)(de)(de)影(ying)響也可(ke)以大(da)為(wei)減(jian)小(xiao)。如界被測(ce)(ce)(ce)(ce)負(fu)(fu)(fu)(fu)(fu)(fu)載(zai)(zai)(zai)(zai)(zai)本身功(gong)(gong)(gong)(gong)(gong)(gong)率(lv)(lv)(lv)較大(da)，可(ke)以不考慮功(gong)(gong)(gong)(gong)(gong)(gong)率(lv)(lv)(lv)表(biao)本身的(de)(de)(de)(de)(de)(de)(de)(de)功(gong)(gong)(gong)(gong)(gong)(gong)率(lv)(lv)(lv)對(dui)測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)結(jie)果的(de)(de)(de)(de)(de)(de)(de)(de)影(ying)響，則(ze)(ze)兩(liang)種接(jie)(jie)法(fa)(fa)可(ke)以任意選擇。選用(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)線(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)前接(jie)(jie)法(fa)(fa)，因為(wei)功(gong)(gong)(gong)(gong)(gong)(gong)率(lv)(lv)(lv)表(biao)中(zhong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)線(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)的(de)(de)(de)(de)(de)(de)(de)(de)功(gong)(gong)(gong)(gong)(gong)(gong)率(lv)(lv)(lv)一(yi)(yi)般(ban)都小(xiao)于(yu)(yu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)線(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)支路(lu)的(de)(de)(de)(de)(de)(de)(de)(de)功(gong)(gong)(gong)(gong)(gong)(gong)率(lv)(lv)(lv)。正確讀數(shu)(shu)(shu)(shu)一(yi)(yi)般(ban)安裝式(shi)功(gong)(gong)(gong)(gong)(gong)(gong)率(lv)(lv)(lv)表(biao)為(wei)直讀單量(liang)(liang)(liang)(liang)程式(shi)，表(biao)上(shang)(shang)的(de)(de)(de)(de)(de)(de)(de)(de)示(shi)數(shu)(shu)(shu)(shu)即為(wei)功(gong)(gong)(gong)(gong)(gong)(gong)率(lv)(lv)(lv)數(shu)(shu)(shu)(shu)。但便攜(xie)式(shi)功(gong)(gong)(gong)(gong)(gong)(gong)率(lv)(lv)(lv)表(biao)一(yi)(yi)般(ban)為(wei)多量(liang)(liang)(liang)(liang)程式(shi)，在表(biao)的(de)(de)(de)(de)(de)(de)(de)(de)標(biao)(biao)(biao)(biao)度尺(chi)上(shang)(shang)不直接(jie)(jie)標(biao)(biao)(biao)(biao)注示(shi)數(shu)(shu)(shu)(shu)，只(zhi)標(biao)(biao)(biao)(biao)注分(fen)(fen)格(ge)。在選用(yong)(yong)不同的(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)與(yu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)量(liang)(liang)(liang)(liang)程時(shi)(shi)(shi)(shi)(shi)，每(mei)一(yi)(yi)分(fen)(fen)格(ge)都可(ke)以表(biao)示(shi)不同的(de)(de)(de)(de)(de)(de)(de)(de)功(gong)(gong)(gong)(gong)(gong)(gong)率(lv)(lv)(lv)數(shu)(shu)(shu)(shu)。在讀數(shu)(shu)(shu)(shu)時(shi)(shi)(shi)(shi)(shi)，應(ying)先(xian)根據(ju)所(suo)選的(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)量(liang)(liang)(liang)(liang)程U、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)量(liang)(liang)(liang)(liang)程I以及標(biao)(biao)(biao)(biao)度尺(chi)滿(man)量(liang)(liang)(liang)(liang)程時(shi)(shi)(shi)(shi)(shi)的(de)(de)(de)(de)(de)(de)(de)(de)格(ge)數(shu)(shu)(shu)(shu)&，求出(chu)每(mei)格(ge)瓦(wa)數(shu)(shu)(shu)(shu)（又(you)稱功(gong)(gong)(gong)(gong)(gong)(gong)率(lv)(lv)(lv)表(biao)常數(shu)(shu)(shu)(shu)）C，然(ran)后再乘(cheng)上(shang)(shang)指針偏轉的(de)(de)(de)(de)(de)(de)(de)(de)格(ge)數(shu)(shu)(shu)(shu)夕，就(jiu)可(ke)得到(dao)所(suo)測(ce)(ce)(ce)(ce)功(gong)(gong)(gong)(gong)(gong)(gong)率(lv)(lv)(lv)P.用(yong)(yong)于(yu)(yu)磁(ci)化開磁(ci)路(lu)軟磁(ci)材料試(shi)樣(yang)(yang)。又(you)稱軟磁(ci)磁(ci)導(dao)計(ji)。其結(jie)構見圖1。材料試(shi)樣(yang)(yang)夾在兩(liang)U狀磁(ci)軛之(zhi)間，并穿過均勻分(fen)(fen)布(bu)的(de)(de)(de)(de)(de)(de)(de)(de)磁(ci)化線(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)(quan)。磁(ci)軛由硅鋼片(pian)疊制而成。用(yong)(yong)中(zhong)場(chang)磁(ci)導(dao)計(ji)代替愛潑斯坦(tan)儀測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)硅鋼片(pian)等的(de)(de)(de)(de)(de)(de)(de)(de)磁(ci)特性和鐵損，無需(xu)剪裁，可(ke)節省大(da)量(liang)(liang)(liang)(liang)試(shi)樣(yang)(yang)材料，并能方便地裝入(ru)和取(qu)出(chu)試(shi)樣(yang)(yang)。較簡單的(de)(de)(de)(de)(de)(de)(de)(de)中(zhong)場(chang)磁(ci)導(dao)計(ji)只(zhi)使用(yong)(yong)一(yi)(yi)個U狀磁(ci)軛，試(shi)樣(yang)(yang)可(ke)采(cai)(cai)(cai)用(yong)(yong)更小(xiao)尺(chi)寸的(de)(de)(de)(de)(de)(de)(de)(de)切片(pian)（見硅鋼片(pian)磁(ci)特性測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)）。
由(you)于(yu)(yu)鐵(tie)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)質(zhi)的(de)(de)(de)(de)(de)(de)(de)作用(yong),導(dao)(dao)致螺(luo)(luo)線(xian)(xian)(xian)管(guan)內磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)(chang)(chang)的(de)(de)(de)(de)(de)(de)(de)均勻性(xing)遭(zao)到破壞(huai),磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)(chang)(chang)測(ce)(ce)量(liang)(liang)線(xian)(xian)(xian)圈(quan)(quan)常數由(you)此(ci)產(chan)生(sheng)變(bian)化,使(shi)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)性(xing)能測(ce)(ce)量(liang)(liang)結果嚴重失真.所以,用(yong)中(zhong)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)(chang)(chang)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)導(dao)(dao)計(ji)(ji)來測(ce)(ce)量(liang)(liang)軟(ruan)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)材(cai)料(liao)(liao)棒形試(shi)樣(yang)的(de)(de)(de)(de)(de)(de)(de)各項磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)性(xing)能是(shi)不(bu)適宜(yi)的(de)(de)(de)(de)(de)(de)(de).當(dang)把一(yi)個(ge)鐵(tie)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)質(zhi)封閉的(de)(de)(de)(de)(de)(de)(de)盒(he)(he)子放人均勻磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)(chang)(chang)中(zhong)，則盒(he)(he)壁(bi)與(yu)其中(zhong)的(de)(de)(de)(de)(de)(de)(de)空間(jian)構(gou)成了并(bing)(bing)聯磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)路(lu)。由(you)于(yu)(yu)鐵(tie)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)質(zhi)的(de)(de)(de)(de)(de)(de)(de)相對磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)導(dao)(dao)率遠(yuan)遠(yuan)大(da)于(yu)(yu)空氣的(de)(de)(de)(de)(de)(de)(de)相對磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)導(dao)(dao)率，因(yin)(yin)(yin)此(ci)，空腔(qiang)中(zhong)的(de)(de)(de)(de)(de)(de)(de)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)阻就遠(yuan)遠(yuan)大(da)于(yu)(yu)盒(he)(he)壁(bi)的(de)(de)(de)(de)(de)(de)(de)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)阻，所以磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)(chang)(chang)的(de)(de)(de)(de)(de)(de)(de)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)力(li)線(xian)(xian)(xian)幾(ji)乎全部從(cong)盒(he)(he)壁(bi)內通(tong)過，而空腔(qiang)內僅有極(ji)(ji)少(shao)(shao)數的(de)(de)(de)(de)(de)(de)(de)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)力(li)線(xian)(xian)(xian)通(tong)過, 因(yin)(yin)(yin)此(ci)，空腔(qiang)內的(de)(de)(de)(de)(de)(de)(de)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)(chang)(chang)很弱。同(tong)樣(yang)的(de)(de)(de)(de)(de)(de)(de)原因(yin)(yin)(yin)，當(dang)螺(luo)(luo)管(guan)中(zhong)有鐵(tie)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)質(zhi)試(shi)樣(yang)時(shi)(shi)，螺(luo)(luo)管(guan)中(zhong)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)(chang)(chang)的(de)(de)(de)(de)(de)(de)(de)均勻性(xing)已(yi)遭(zao)到破壞(huai)，絕大(da)部分磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)力(li)線(xian)(xian)(xian)也應通(tong)過鐵(tie)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)質(zhi)試(shi)樣(yang)，在(zai)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)開路(lu)情況下(xia)只有少(shao)(shao)數的(de)(de)(de)(de)(de)(de)(de)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)力(li)線(xian)(xian)(xian)通(tong)過磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)(chang)(chang)測(ce)(ce)量(liang)(liang)線(xian)(xian)(xian)圈(quan)(quan)的(de)(de)(de)(de)(de)(de)(de)間(jian)隙，因(yin)(yin)(yin)此(ci)，測(ce)(ce)得磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)(chang)(chang)強度就很小；在(zai)閉合(he)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)路(lu)情況下(xia)由(you)于(yu)(yu)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)導(dao)(dao)計(ji)(ji)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)扼體和(he)鐵(tie)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)質(zhi)試(shi)樣(yang)共(gong)同(tong)作用(yong)，使(shi)較多(duo)的(de)(de)(de)(de)(de)(de)(de)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)力(li)線(xian)(xian)(xian)通(tong)過磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)(chang)(chang)測(ce)(ce)量(liang)(liang)線(xian)(xian)(xian)圈(quan)(quan)的(de)(de)(de)(de)(de)(de)(de)間(jian)隙，因(yin)(yin)(yin)此(ci)，測(ce)(ce)得磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)(chang)(chang)強度就較大(da) [1] 。強場(chang)(chang)(chang)(chang)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)導(dao)(dao)計(ji)(ji)于(yu)(yu)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)化永磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)材(cai)料(liao)(liao)（即硬磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)材(cai)料(liao)(liao)）試(shi)樣(yang)。又稱永磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)導(dao)(dao)計(ji)(ji)。由(you)于(yu)(yu)永磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)材(cai)料(liao)(liao)在(zai)測(ce)(ce)量(liang)(liang)與(yu)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)化時(shi)(shi)要(yao)求有很強而集(ji)中(zhong)的(de)(de)(de)(de)(de)(de)(de)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)(chang)(chang)，且永磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)材(cai)料(liao)(liao)試(shi)樣(yang)多(duo)是(shi)開路(lu)形式，故專門制(zhi)造了這(zhe)種(zhong)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)導(dao)(dao)計(ji)(ji)。強場(chang)(chang)(chang)(chang)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)導(dao)(dao)計(ji)(ji)由(you)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)極(ji)(ji)、磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)軛、磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)化線(xian)(xian)(xian)圈(quan)(quan)等(deng)構(gou)成（圖(tu)2），試(shi)樣(yang)夾在(zai)可動磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)極(ji)(ji)與(yu)固定(ding)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)極(ji)(ji)之間(jian)。為使(shi)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)化磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)(chang)(chang)集(ji)中(zhong)在(zai)試(shi)樣(yang)上，須使(shi)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)軛消耗的(de)(de)(de)(de)(de)(de)(de)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)化安匝盡量(liang)(liang)少(shao)(shao)，因(yin)(yin)(yin)此(ci)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)軛通(tong)常采用(yong)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)導(dao)(dao)率高的(de)(de)(de)(de)(de)(de)(de)材(cai)料(liao)(liao)，并(bing)(bing)且截面較大(da)，制(zhi)作時(shi)(shi)要(yao)求有較高的(de)(de)(de)(de)(de)(de)(de)工藝水(shui)平(ping)。磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)化線(xian)(xian)(xian)圈(quan)(quan)由(you)直流電(dian)源供電(dian)，其容量(liang)(liang)可滿足產(chan)生(sheng)足夠大(da)的(de)(de)(de)(de)(de)(de)(de)飽(bao)和(he)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)(chang)(chang)強度Hm的(de)(de)(de)(de)(de)(de)(de)需(xu)要(yao)。Hm一(yi)般取被測(ce)(ce)材(cai)料(liao)(liao)內稟矯頑(wan)力(li)Hcj的(de)(de)(de)(de)(de)(de)(de)3～5倍，電(dian)源的(de)(de)(de)(de)(de)(de)(de)穩定(ding)度應保證在(zai)1分鐘內變(bian)化不(bu)超(chao)過0.1%。
計為(wei)快速檢(jian)驗和(he)分選永磁(ci)材(cai)料(liao)，常采(cai)用對(dui)(dui)稱雙軛(e)磁(ci)導計結構。它的(de)(de)兩個(ge)U狀(zhuang)磁(ci)軛(e)*對(dui)(dui)稱，4個(ge)磁(ci)化線圈*相同(tong)，并串聯在(zai)一起。未放(fang)入(ru)試(shi)(shi)(shi)樣(yang)時(shi)，左右兩氣(qi)(qi)隙(xi)(xi)內的(de)(de)磁(ci)通(tong)相等，中間(jian)氣(qi)(qi)隙(xi)(xi)內的(de)(de)磁(ci)通(tong)為(wei)零。在(zai)一邊氣(qi)(qi)隙(xi)(xi)中放(fang)入(ru)試(shi)(shi)(shi)樣(yang)后，磁(ci)路平(ping)衡被(bei)破壞(huai)，中間(jian)氣(qi)(qi)隙(xi)(xi)內存在(zai)有(you)正比于試(shi)(shi)(shi)樣(yang)磁(ci)化強度的(de)(de)磁(ci)通(tong)。作用于試(shi)(shi)(shi)樣(yang)的(de)(de)磁(ci)場強度，可(ke)在(zai)另一邊氣(qi)(qi)隙(xi)(xi)內測得。如在(zai)一邊氣(qi)(qi)隙(xi)(xi)內放(fang)入(ru)標準(zhun)試(shi)(shi)(shi)樣(yang)，則可(ke)對(dui)(dui)放(fang)在(zai)另一邊氣(qi)(qi)隙(xi)(xi)中的(de)(de)試(shi)(shi)(shi)樣(yang)進行分選
數(shu)字電(dian)容(rong)(rong)表(biao)(biao)是(shi)(shi)一(yi)(yi)種(zhong)智能(neng)型、性(xing)能(neng)穩定、高可(ke)靠性(xing)、3 5/6數(shu)字多(duo)用(yong)表(biao)(biao)，儀(yi)表(biao)(biao)采(cai)用(yong)33mm字高LCD顯(xian)示(shi)(shi)器，讀數(shu)清晰，顯(xian)示(shi)(shi)直(zhi)觀，操作方(fang)便，可(ke)用(yong)來測(ce)(ce)量(liang)(liang)(liang)電(dian)阻(zu)、電(dian)容(rong)(rong)、二極(ji)(ji)管及(ji)通(tong)(tong)斷測(ce)(ce)試(shi)(shi)(shi)(shi)；同(tong)時(shi)還(huan)設(she)有單位符號(hao)顯(xian)示(shi)(shi)、數(shu)據保持、大小(xiao)値(zhi)測(ce)(ce)量(liang)(liang)(liang)，自動/手動量(liang)(liang)(liang)程轉換、自動斷電(dian)、自動識別(bie)及(ji)報警功能(neng)。整機采(cai)用(yong)了一(yi)(yi)個能(neng)直(zhi)接(jie)驅動LCD微處理器和(he)雙積分(fen)(fen)A/D轉換集(ji)成電(dian)路，一(yi)(yi)個提(ti)供(gong)高分(fen)(fen)辨力、高精度的(de)(de)數(shu)字顯(xian)示(shi)(shi)驅動，該表(biao)(biao)功能(neng)齊全，測(ce)(ce)量(liang)(liang)(liang)準確度高，使(shi)用(yong)方(fang)便，是(shi)(shi)實(shi)驗(yan)(yan)室、工廠、無線電(dian)愛好(hao)者及(ji)家庭的(de)(de)理想工具。確認電(dian)池和(he)保險絲已正確安裝；要測(ce)(ce)量(liang)(liang)(liang)的(de)(de)電(dian)容(rong)(rong)在(zai)測(ce)(ce)量(liang)(liang)(liang)前已充分(fen)(fen)放(fang)電(dian)；要測(ce)(ce)量(liang)(liang)(liang)的(de)(de)電(dian)容(rong)(rong)，其極(ji)(ji)性(xing)要與測(ce)(ce)量(liang)(liang)(liang)端子(zi)的(de)(de)極(ji)(ji)性(xing)一(yi)(yi)致；請(qing)(qing)一(yi)(yi)定注意，不要在(zai)測(ce)(ce)量(liang)(liang)(liang)端子(zi)加載(zai)(zai)電(dian)壓，否則(ze)將(jiang)導(dao)致嚴重的(de)(de)損害；不要嘗試(shi)(shi)(shi)(shi)短接(jie)兩個輸入(ru)端子(zi)，否則(ze)將(jiang)極(ji)(ji)大的(de)(de)浪費電(dian)池電(dian)量(liang)(liang)(liang)，并(bing)以(yi)過載(zai)(zai)顯(xian)示(shi)(shi)；如果被測(ce)(ce)量(liang)(liang)(liang)的(de)(de)電(dian)容(rong)(rong)器是(shi)(shi)未(wei)知的(de)(de)，請(qing)(qing)從小(xiao)量(liang)(liang)(liang)程開始測(ce)(ce)量(liang)(liang)(liang)，并(bing)逐步加大直(zhi)到(dao)(dao)得到(dao)(dao)合適的(de)(de)值(zhi)。為快速檢驗(yan)(yan)和(he)分(fen)(fen)選永磁(ci)材(cai)料(liao)，常采(cai)用(yong)對(dui)稱(cheng)雙軛磁(ci)導(dao)計結構。它的(de)(de)兩個U狀磁(ci)軛*對(dui)稱(cheng)，4個磁(ci)化(hua)線圈*相同(tong)，并(bing)串(chuan)聯在(zai)一(yi)(yi)起。未(wei)放(fang)入(ru)試(shi)(shi)(shi)(shi)樣時(shi)，左右兩氣(qi)(qi)隙(xi)(xi)(xi)內(nei)的(de)(de)磁(ci)通(tong)(tong)相等，中間(jian)(jian)氣(qi)(qi)隙(xi)(xi)(xi)內(nei)的(de)(de)磁(ci)通(tong)(tong)為零。在(zai)一(yi)(yi)邊氣(qi)(qi)隙(xi)(xi)(xi)中放(fang)入(ru)試(shi)(shi)(shi)(shi)樣后，磁(ci)路平(ping)衡被破壞，中間(jian)(jian)氣(qi)(qi)隙(xi)(xi)(xi)內(nei)存(cun)在(zai)有正比(bi)于(yu)試(shi)(shi)(shi)(shi)樣磁(ci)化(hua)強度的(de)(de)磁(ci)通(tong)(tong)。作用(yong)于(yu)試(shi)(shi)(shi)(shi)樣的(de)(de)磁(ci)場強度，可(ke)在(zai)另一(yi)(yi)邊氣(qi)(qi)隙(xi)(xi)(xi)內(nei)測(ce)(ce)得。如在(zai)一(yi)(yi)邊氣(qi)(qi)隙(xi)(xi)(xi)內(nei)放(fang)入(ru)標準試(shi)(shi)(shi)(shi)樣，則(ze)可(ke)對(dui)放(fang)在(zai)另一(yi)(yi)邊氣(qi)(qi)隙(xi)(xi)(xi)中的(de)(de)試(shi)(shi)(shi)(shi)樣進行分(fen)(fen)選。量(liang)(liang)(liang)程選擇
選(xuan)擇功(gong)(gong)(gong)率(lv)(lv)(lv)(lv)表(biao)(biao)的(de)量(liang)程(cheng)就是選(xuan)擇功(gong)(gong)(gong)率(lv)(lv)(lv)(lv)表(biao)(biao)中的(de)電(dian)(dian)(dian)(dian)流(liu)量(liang)程(cheng)和(he)電(dian)(dian)(dian)(dian)壓(ya)量(liang)程(cheng)。使(shi)用時應(ying)(ying)使(shi)功(gong)(gong)(gong)率(lv)(lv)(lv)(lv)表(biao)(biao)中的(de)電(dian)(dian)(dian)(dian)流(liu)量(liang)程(cheng)不小于(yu)負載(zai)(zai)電(dian)(dian)(dian)(dian)流(liu)，電(dian)(dian)(dian)(dian)壓(ya)量(liang)程(cheng)不低于(yu)負載(zai)(zai)電(dian)(dian)(dian)(dian)壓(ya)，而不能(neng)僅(jin)從功(gong)(gong)(gong)率(lv)(lv)(lv)(lv)量(liang)程(cheng)來考慮(lv)。例如，兩(liang)只功(gong)(gong)(gong)率(lv)(lv)(lv)(lv)表(biao)(biao)，量(liang)程(cheng)分別是IA、300V和(he)2A、150V，由計算可(ke)知其功(gong)(gong)(gong)率(lv)(lv)(lv)(lv)量(liang)程(cheng)均(jun)為300W，如果要(yao)(yao)測量(liang)一負載(zai)(zai)電(dian)(dian)(dian)(dian)壓(ya)為220V、電(dian)(dian)(dian)(dian)流(liu)為IA的(de)負載(zai)(zai)功(gong)(gong)(gong)率(lv)(lv)(lv)(lv)時應(ying)(ying)逸用IA、300V的(de)功(gong)(gong)(gong)率(lv)(lv)(lv)(lv)表(biao)(biao)，而2A、150V的(de)功(gong)(gong)(gong)率(lv)(lv)(lv)(lv)表(biao)(biao)雖功(gong)(gong)(gong)率(lv)(lv)(lv)(lv)量(liang)程(cheng)也(ye)大(da)于(yu)負載(zai)(zai)功(gong)(gong)(gong)率(lv)(lv)(lv)(lv)，但是由于(yu)負載(zai)(zai)電(dian)(dian)(dian)(dian)壓(ya)高于(yu)功(gong)(gong)(gong)率(lv)(lv)(lv)(lv)表(biao)(biao)所能(neng)承受(shou)的(de)電(dian)(dian)(dian)(dian)壓(ya)150V，故不能(neng)使(shi)用。所以，在(zai)測量(liang)功(gong)(gong)(gong)率(lv)(lv)(lv)(lv)前要(yao)(yao)根據負載(zai)(zai)的(de)額定電(dian)(dian)(dian)(dian)壓(ya)和(he)額定電(dian)(dian)(dian)(dian)流(liu)來選(xuan)擇功(gong)(gong)(gong)率(lv)(lv)(lv)(lv)表(biao)(biao)的(de)量(liang)程(cheng)。
測(ce)(ce)(ce)量(liang)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)路(lu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動系測(ce)(ce)(ce)量(liang)機(ji)構的(de)(de)(de)(de)(de)(de)(de)(de)(de)轉動力矩方向(xiang)和(he)兩(liang)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)(quan)中(zhong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)方向(xiang)有關，為(wei)(wei)(wei)了防止電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動系功(gong)(gong)(gong)率(lv)(lv)(lv)(lv)表(biao)(biao)(biao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)指針反(fan)偏(pian)(pian)，接(jie)(jie)(jie)(jie)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)時(shi)(shi)(shi)功(gong)(gong)(gong)率(lv)(lv)(lv)(lv)表(biao)(biao)(biao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)(quan)標有“·”號的(de)(de)(de)(de)(de)(de)(de)(de)(de)端鈕必須接(jie)(jie)(jie)(jie)到(dao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源的(de)(de)(de)(de)(de)(de)(de)(de)(de)正(zheng)，而電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)(quan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)另(ling)一端則與(yu)負(fu)(fu)(fu)(fu)(fu)載(zai)(zai)相連，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)(quan)以(yi)(yi)串(chuan)聯形式接(jie)(jie)(jie)(jie)入電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)中(zhong)。功(gong)(gong)(gong)率(lv)(lv)(lv)(lv)表(biao)(biao)(biao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)(quan)標有“·”號的(de)(de)(de)(de)(de)(de)(de)(de)(de)端鈕可(ke)(ke)以(yi)(yi)接(jie)(jie)(jie)(jie)到(dao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源端鈕的(de)(de)(de)(de)(de)(de)(de)(de)(de)任(ren)一端上(shang)，而另(ling)一電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)端鈕則跨接(jie)(jie)(jie)(jie)到(dao)負(fu)(fu)(fu)(fu)(fu)載(zai)(zai)的(de)(de)(de)(de)(de)(de)(de)(de)(de)另(ling)一端，當(dang)負(fu)(fu)(fu)(fu)(fu)載(zai)(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)遠遠大(da)(da)于(yu)(yu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)(quan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)時(shi)(shi)(shi)，應采(cai)用(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)(quan)前接(jie)(jie)(jie)(jie)法(fa)。這(zhe)時(shi)(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)(quan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)是(shi)負(fu)(fu)(fu)(fu)(fu)載(zai)(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)和(he)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)(quan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)之和(he)，功(gong)(gong)(gong)率(lv)(lv)(lv)(lv)表(biao)(biao)(biao)測(ce)(ce)(ce)量(liang)的(de)(de)(de)(de)(de)(de)(de)(de)(de)是(shi)負(fu)(fu)(fu)(fu)(fu)載(zai)(zai)功(gong)(gong)(gong)率(lv)(lv)(lv)(lv)和(he)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)(quan)功(gong)(gong)(gong)率(lv)(lv)(lv)(lv)之和(he)。如果負(fu)(fu)(fu)(fu)(fu)載(zai)(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)遠遠大(da)(da)于(yu)(yu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)(quan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)，則可(ke)(ke)以(yi)(yi)略(lve)去電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)(quan)分壓(ya)(ya)所造成的(de)(de)(de)(de)(de)(de)(de)(de)(de)影(ying)響，測(ce)(ce)(ce)量(liang)結(jie)果比較接(jie)(jie)(jie)(jie)近負(fu)(fu)(fu)(fu)(fu)載(zai)(zai)的(de)(de)(de)(de)(de)(de)(de)(de)(de)實際功(gong)(gong)(gong)率(lv)(lv)(lv)(lv)值(zhi)。當(dang)負(fu)(fu)(fu)(fu)(fu)載(zai)(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)遠遠小(xiao)(xiao)于(yu)(yu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)(quan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)時(shi)(shi)(shi)，應采(cai)用(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)(quan)后接(jie)(jie)(jie)(jie)法(fa) 。這(zhe)時(shi)(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)(quan)兩(liang)端的(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)雖然等于(yu)(yu)負(fu)(fu)(fu)(fu)(fu)載(zai)(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)，但(dan)(dan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)(quan)中(zhong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)卻等于(yu)(yu)負(fu)(fu)(fu)(fu)(fu)載(zai)(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)與(yu)功(gong)(gong)(gong)率(lv)(lv)(lv)(lv)表(biao)(biao)(biao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)(quan)中(zhong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)之和(he)，測(ce)(ce)(ce)量(liang)時(shi)(shi)(shi)功(gong)(gong)(gong)率(lv)(lv)(lv)(lv)讀數(shu)(shu)(shu)(shu)為(wei)(wei)(wei)負(fu)(fu)(fu)(fu)(fu)載(zai)(zai)功(gong)(gong)(gong)率(lv)(lv)(lv)(lv)與(yu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)(quan)功(gong)(gong)(gong)率(lv)(lv)(lv)(lv)之和(he)。由(you)于(yu)(yu)此時(shi)(shi)(shi)負(fu)(fu)(fu)(fu)(fu)載(zai)(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)遠小(xiao)(xiao)于(yu)(yu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)(quan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)，所以(yi)(yi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)(quan)分流(liu)作(zuo)用(yong)大(da)(da)大(da)(da)減(jian)小(xiao)(xiao)，其(qi)對(dui)測(ce)(ce)(ce)量(liang)結(jie)果的(de)(de)(de)(de)(de)(de)(de)(de)(de)影(ying)響也可(ke)(ke)以(yi)(yi)大(da)(da)為(wei)(wei)(wei)減(jian)小(xiao)(xiao)。如界被測(ce)(ce)(ce)負(fu)(fu)(fu)(fu)(fu)載(zai)(zai)本身功(gong)(gong)(gong)率(lv)(lv)(lv)(lv)較大(da)(da)，可(ke)(ke)以(yi)(yi)不考慮功(gong)(gong)(gong)率(lv)(lv)(lv)(lv)表(biao)(biao)(biao)本身的(de)(de)(de)(de)(de)(de)(de)(de)(de)功(gong)(gong)(gong)率(lv)(lv)(lv)(lv)對(dui)測(ce)(ce)(ce)量(liang)結(jie)果的(de)(de)(de)(de)(de)(de)(de)(de)(de)影(ying)響，則兩(liang)種接(jie)(jie)(jie)(jie)法(fa)可(ke)(ke)以(yi)(yi)任(ren)意(yi)選擇。選用(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)(quan)前接(jie)(jie)(jie)(jie)法(fa)，因為(wei)(wei)(wei)功(gong)(gong)(gong)率(lv)(lv)(lv)(lv)表(biao)(biao)(biao)中(zhong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)(quan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)功(gong)(gong)(gong)率(lv)(lv)(lv)(lv)一般(ban)(ban)都(dou)小(xiao)(xiao)于(yu)(yu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)圈(quan)(quan)(quan)(quan)(quan)支(zhi)路(lu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)功(gong)(gong)(gong)率(lv)(lv)(lv)(lv)。正(zheng)確讀數(shu)(shu)(shu)(shu)一般(ban)(ban)安裝式功(gong)(gong)(gong)率(lv)(lv)(lv)(lv)表(biao)(biao)(biao)為(wei)(wei)(wei)直讀單(dan)量(liang)程式，表(biao)(biao)(biao)上(shang)的(de)(de)(de)(de)(de)(de)(de)(de)(de)示(shi)數(shu)(shu)(shu)(shu)即(ji)為(wei)(wei)(wei)功(gong)(gong)(gong)率(lv)(lv)(lv)(lv)數(shu)(shu)(shu)(shu)。但(dan)(dan)便攜(xie)式功(gong)(gong)(gong)率(lv)(lv)(lv)(lv)表(biao)(biao)(biao)一般(ban)(ban)為(wei)(wei)(wei)多量(liang)程式，在(zai)表(biao)(biao)(biao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)標度尺(chi)上(shang)不直接(jie)(jie)(jie)(jie)標注(zhu)示(shi)數(shu)(shu)(shu)(shu)，只標注(zhu)分格(ge)。在(zai)選用(yong)不同的(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)與(yu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)量(liang)程時(shi)(shi)(shi)，每(mei)一分格(ge)都(dou)可(ke)(ke)以(yi)(yi)表(biao)(biao)(biao)示(shi)不同的(de)(de)(de)(de)(de)(de)(de)(de)(de)功(gong)(gong)(gong)率(lv)(lv)(lv)(lv)數(shu)(shu)(shu)(shu)。在(zai)讀數(shu)(shu)(shu)(shu)時(shi)(shi)(shi)，應先根據所選的(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)量(liang)程U、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)量(liang)程I以(yi)(yi)及標度尺(chi)滿量(liang)程時(shi)(shi)(shi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)格(ge)數(shu)(shu)(shu)(shu)&，求出每(mei)格(ge)瓦(wa)數(shu)(shu)(shu)(shu)（又(you)稱(cheng)功(gong)(gong)(gong)率(lv)(lv)(lv)(lv)表(biao)(biao)(biao)常數(shu)(shu)(shu)(shu)）C，然后再乘上(shang)指針偏(pian)(pian)轉的(de)(de)(de)(de)(de)(de)(de)(de)(de)格(ge)數(shu)(shu)(shu)(shu)夕，就(jiu)可(ke)(ke)得到(dao)所測(ce)(ce)(ce)功(gong)(gong)(gong)率(lv)(lv)(lv)(lv)P.
