HEIDENHAIN編碼器393000-07翊霈優質供應
發布日期：2023-12-21
簡要描述：
編碼器（encoder）是將信號（如比特流）或數據進行編制、轉換為可用以通訊、傳輸和存儲的信號形式的設備。編碼器把角位移或直線位移轉換成電信號，前者稱為碼盤，后者稱為碼尺。按照讀出方式編碼器可以分為接觸式和非接觸式兩種；
由一個中心有軸的光電碼盤，其上有環形通、暗的刻線，有光電發射和接收器件讀取，獲得四組正弦波信號組合成A、B、C、D,每個正弦波相差90度相位差（相對于一個周波為360度），將C、D信號反向，疊加在A、B兩相上，可增強穩定信號；另每轉輸出一個Z相脈沖以代表零位參考位。
由于A、B兩相相差90度(du)，可通(tong)過比較A相在(zai)(zai)前還(huan)是(shi)(shi)B相在(zai)(zai)前，以判別編碼(ma)(ma)器的(de)(de)正(zheng)轉與(yu)反轉，通(tong)過零位脈沖，可獲得(de)編碼(ma)(ma)器的(de)(de)零位參考位。編碼(ma)(ma)器碼(ma)(ma)盤(pan)的(de)(de)材(cai)料有玻(bo)璃、金屬(shu)、塑(su)料，玻(bo)璃碼(ma)(ma)盤(pan)是(shi)(shi)在(zai)(zai)玻(bo)璃上(shang)沉積很薄(bo)的(de)(de)刻線，其(qi)熱(re)穩(wen)定(ding)性好(hao)，精(jing)度(du)高，金屬(shu)碼(ma)(ma)盤(pan)直接(jie)以通(tong)和不(bu)通(tong)刻線，不(bu)易碎(sui)，但由于金屬(shu)有一(yi)定(ding)的(de)(de)厚度(du)，精(jing)度(du)就(jiu)有限制，其(qi)熱(re)穩(wen)定(ding)性就(jiu)要(yao)比玻(bo)璃的(de)(de)差一(yi)個(ge)數量級，塑(su)料碼(ma)(ma)盤(pan)是(shi)(shi)經濟(ji)型的(de)(de)，其(qi)成本低，但精(jing)度(du)、熱(re)穩(wen)定(ding)性、壽命均要(yao)差一(yi)些。
流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)計(ji)(ji)(ji)(ji)(ji)(ji)英(ying)文名稱(cheng)是(shi)flowmeter，全(quan)國(guo)科學(xue)技術名詞審定委員會把它定義為：指示(shi)被測(ce)(ce)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)和（或(huo)(huo)(huo)）在(zai)(zai)選定的(de)(de)(de)(de)時(shi)(shi)間(jian)(jian)(jian)間(jian)(jian)(jian)隔內流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)體(ti)(ti)總量(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)的(de)(de)(de)(de)儀表。簡單(dan)來說就是(shi)用(yong)于測(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)管(guan)(guan)道(dao)或(huo)(huo)(huo)明渠中(zhong)(zhong)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)體(ti)(ti)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)的(de)(de)(de)(de)一(yi)(yi)種儀表。流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)計(ji)(ji)(ji)(ji)(ji)(ji)又分(fen)為有(you)差壓式(shi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)計(ji)(ji)(ji)(ji)(ji)(ji)、轉子流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)計(ji)(ji)(ji)(ji)(ji)(ji)、節(jie)(jie)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)式(shi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)計(ji)(ji)(ji)(ji)(ji)(ji)、細縫流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)計(ji)(ji)(ji)(ji)(ji)(ji)、容積流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)計(ji)(ji)(ji)(ji)(ji)(ji)、電(dian)磁(ci)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)計(ji)(ji)(ji)(ji)(ji)(ji)、超聲(sheng)波流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)計(ji)(ji)(ji)(ji)(ji)(ji)等(deng)。按(an)介質(zhi)(zhi)(zhi)分(fen)類：液(ye)(ye)(ye)體(ti)(ti)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)計(ji)(ji)(ji)(ji)(ji)(ji)和氣(qi)(qi)(qi)體(ti)(ti)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)計(ji)(ji)(ji)(ji)(ji)(ji)。工(gong)程上常用(yong)單(dan)位m3/h，它可(ke)分(fen)為瞬(shun)(shun)時(shi)(shi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)（Flow Rate）和累(lei)計(ji)(ji)(ji)(ji)(ji)(ji)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)（Total Flow），瞬(shun)(shun)時(shi)(shi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)即單(dan)位時(shi)(shi)間(jian)(jian)(jian)內過(guo)封閉(bi)管(guan)(guan)道(dao)或(huo)(huo)(huo)明渠有(you)效截(jie)面的(de)(de)(de)(de)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)，流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)過(guo)的(de)(de)(de)(de)物質(zhi)(zhi)(zhi)可(ke)以(yi)是(shi)氣(qi)(qi)(qi)體(ti)(ti)、液(ye)(ye)(ye)體(ti)(ti)、固體(ti)(ti)；累(lei)計(ji)(ji)(ji)(ji)(ji)(ji)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)即為在(zai)(zai)某(mou)一(yi)(yi)段時(shi)(shi)間(jian)(jian)(jian)間(jian)(jian)(jian)隔內（一(yi)(yi)天、一(yi)(yi)周、一(yi)(yi)月、一(yi)(yi)年(nian)）流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)體(ti)(ti)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)過(guo)封閉(bi)管(guan)(guan)道(dao)或(huo)(huo)(huo)明渠有(you)效截(jie)面的(de)(de)(de)(de)累(lei)計(ji)(ji)(ji)(ji)(ji)(ji)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)。通過(guo)瞬(shun)(shun)時(shi)(shi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)對(dui)時(shi)(shi)間(jian)(jian)(jian)積分(fen)亦可(ke)求得累(lei)計(ji)(ji)(ji)(ji)(ji)(ji)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)，所以(yi)瞬(shun)(shun)時(shi)(shi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)計(ji)(ji)(ji)(ji)(ji)(ji)和累(lei)計(ji)(ji)(ji)(ji)(ji)(ji)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)計(ji)(ji)(ji)(ji)(ji)(ji)之間(jian)(jian)(jian)也可(ke)以(yi)相互轉化。流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)計(ji)(ji)(ji)(ji)(ji)(ji)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)廣(guang)泛應用(yong)于工(gong)農業(ye)生(sheng)產(chan)(chan)、國(guo)防建設、科學(xue)研究對(dui)外貿易(yi)(yi)以(yi)及人民生(sheng)活各(ge)個(ge)領域之中(zhong)(zhong)。在(zai)(zai)石(shi)油(you)工(gong)業(ye)生(sheng)產(chan)(chan)中(zhong)(zhong)，從石(shi)油(you)的(de)(de)(de)(de)開(kai)采、運輸、煉冶加工(gong)直至貿易(yi)(yi)銷售，流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)計(ji)(ji)(ji)(ji)(ji)(ji)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)貫(guan)穿于全(quan)過(guo)程中(zhong)(zhong)，任何一(yi)(yi)個(ge)環節(jie)(jie)都離不(bu)(bu)開(kai)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)計(ji)(ji)(ji)(ji)(ji)(ji)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)，否則將無(wu)法保證(zheng)石(shi)油(you)工(gong)業(ye)的(de)(de)(de)(de)正(zheng)常生(sheng)產(chan)(chan)和貿易(yi)(yi)交往(wang)。在(zai)(zai)化工(gong)行(xing)業(ye)，流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)計(ji)(ji)(ji)(ji)(ji)(ji)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)不(bu)(bu)準確(que)(que)會造(zao)成化學(xue)成分(fen)分(fen)配(pei)比(bi)失(shi)調，無(wu)法保證(zheng)產(chan)(chan)品(pin)質(zhi)(zhi)(zhi)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)，嚴(yan)(yan)重(zhong)的(de)(de)(de)(de)還會發生(sheng)生(sheng)產(chan)(chan)安全(quan)事故。在(zai)(zai)電(dian)力工(gong)業(ye)生(sheng)產(chan)(chan)中(zhong)(zhong)，對(dui)液(ye)(ye)(ye)體(ti)(ti)、氣(qi)(qi)(qi)體(ti)(ti)、蒸汽等(deng)介質(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)的(de)(de)(de)(de)測(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)和調節(jie)(jie)占有(you)重(zhong)要地位。流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)計(ji)(ji)(ji)(ji)(ji)(ji)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)的(de)(de)(de)(de)準確(que)(que)與(yu)否不(bu)(bu)僅對(dui)保證(zheng)發電(dian)廠在(zai)(zai)參(can)數下運行(xing)具有(you)很大(da)的(de)(de)(de)(de)經濟意義，而且隨著高(gao)溫高(gao)壓大(da)容量(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)機組的(de)(de)(de)(de)發展，流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)測(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)已(yi)成為保證(zheng)發電(dian)廠安全(quan)運行(xing)的(de)(de)(de)(de)重(zhong)要環節(jie)(jie)。如大(da)容量(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)鍋爐瞬(shun)(shun)時(shi)(shi)給水(shui)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)中(zhong)(zhong)斷或(huo)(huo)(huo)減少，都可(ke)能(neng)造(zao)成嚴(yan)(yan)重(zhong)的(de)(de)(de)(de)干鍋或(huo)(huo)(huo)爆管(guan)(guan)事故。這就要求流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)測(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)裝置不(bu)(bu)但應做到準確(que)(que)計(ji)(ji)(ji)(ji)(ji)(ji)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)，而且要及時(shi)(shi)地發出報(bao)警信號。在(zai)(zai)鋼鐵工(gong)業(ye)生(sheng)產(chan)(chan)中(zhong)(zhong)，煉鋼過(guo)程中(zhong)(zhong)循環水(shui)和氧氣(qi)(qi)(qi)(或(huo)(huo)(huo)空(kong)氣(qi)(qi)(qi))的(de)(de)(de)(de)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)測(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)是(shi)保證(zheng)產(chan)(chan)品(pin)質(zhi)(zhi)(zhi)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)的(de)(de)(de)(de)重(zhong)要參(can)數之一(yi)(yi)。在(zai)(zai)輕工(gong)業(ye)、食品(pin)、紡織等(deng)行(xing)業(ye)中(zhong)(zhong)，也都離不(bu)(bu)開(kai)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)計(ji)(ji)(ji)(ji)(ji)(ji)量(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)(liang)。
制(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)(leng)(leng)機(ji)(ji)(ji)(ji)(ji)(ji)（refrigerating machine） 將(jiang)具有較低溫度(du)的(de)(de)(de)(de)(de)(de)(de)被冷(leng)(leng)(leng)(leng)(leng)(leng)(leng)(leng)卻物體(ti)(ti)(ti)的(de)(de)(de)(de)(de)(de)(de)熱(re)量(liang)(liang)轉(zhuan)移(yi)給(gei)環(huan)境介質(zhi)從而(er)(er)獲得冷(leng)(leng)(leng)(leng)(leng)(leng)(leng)(leng)量(liang)(liang)的(de)(de)(de)(de)(de)(de)(de)機(ji)(ji)(ji)(ji)(ji)(ji)器(qi)(qi)(qi)(qi)(qi)。從較低溫度(du)物體(ti)(ti)(ti)轉(zhuan)移(yi)的(de)(de)(de)(de)(de)(de)(de)熱(re)量(liang)(liang)習(xi)慣(guan)上(shang)稱為(wei)(wei)(wei)冷(leng)(leng)(leng)(leng)(leng)(leng)(leng)(leng)量(liang)(liang)。制(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)(leng)(leng)機(ji)(ji)(ji)(ji)(ji)(ji)內(nei)參與(yu)(yu)熱(re)力(li)過(guo)程變化(hua)(hua)（能(neng)量(liang)(liang)轉(zhuan)換和(he)熱(re)量(liang)(liang)轉(zhuan)移(yi)）的(de)(de)(de)(de)(de)(de)(de)工質(zhi)稱為(wei)(wei)(wei)制(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)(leng)(leng)劑(ji)(ji)(ji)。制(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)(leng)(leng)的(de)(de)(de)(de)(de)(de)(de)溫度(du)范圍通(tong)常(chang)在120K以(yi)(yi)上(shang)，120K以(yi)(yi)下(xia)屬深低溫技(ji)術范圍。制(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)(leng)(leng)機(ji)(ji)(ji)(ji)(ji)(ji)廣(guang)泛應(ying)用(yong)(yong)于工農業生產和(he)日常(chang)生活中。制(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)(leng)(leng)機(ji)(ji)(ji)(ji)(ji)(ji)容(rong)(rong)量(liang)(liang)應(ying)該與(yu)(yu)庫(ku)房(fang)的(de)(de)(de)(de)(de)(de)(de)熱(re)負(fu)荷(he)相匹配。這(zhe)點可(ke)以(yi)(yi)通(tong)過(guo)合理的(de)(de)(de)(de)(de)(de)(de)配機(ji)(ji)(ji)(ji)(ji)(ji)和(he)利用(yong)(yong)能(neng)量(liang)(liang)調(diao)節(jie)裝置(zhi)等(deng)方法達(da)到(dao)。當然，最主要是要有比較好(hao)的(de)(de)(de)(de)(de)(de)(de)冷(leng)(leng)(leng)(leng)(leng)(leng)(leng)(leng)庫(ku)安(an)裝節(jie)能(neng)措施。如(ru)果庫(ku)房(fang)的(de)(de)(de)(de)(de)(de)(de)熱(re)負(fu)荷(he)不(bu)(bu)變，而(er)(er)壓(ya)(ya)(ya)縮(suo)機(ji)(ji)(ji)(ji)(ji)(ji)的(de)(de)(de)(de)(de)(de)(de)容(rong)(rong)量(liang)(liang)大時，就會使系統蒸(zheng)(zheng)(zheng)發(fa)(fa)溫度(du)降低，或(huo)使壓(ya)(ya)(ya)縮(suo)機(ji)(ji)(ji)(ji)(ji)(ji)倒霉，這(zhe)是很不(bu)(bu)好(hao)調(diao)整的(de)(de)(de)(de)(de)(de)(de)制(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)(leng)(leng)系統，制(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)(leng)(leng)裝置(zhi)穩定性也差。反之，如(ru)果制(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)(leng)(leng)機(ji)(ji)(ji)(ji)(ji)(ji)容(rong)(rong)量(liang)(liang)減小時，由于機(ji)(ji)(ji)(ji)(ji)(ji)器(qi)(qi)(qi)(qi)(qi)未能(neng)及(ji)時吸(xi)(xi)(xi)回蒸(zheng)(zheng)(zheng)發(fa)(fa)器(qi)(qi)(qi)(qi)(qi)內(nei)形(xing)成的(de)(de)(de)(de)(de)(de)(de)制(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)(leng)(leng)劑(ji)(ji)(ji)氣體(ti)(ti)(ti)，又會使蒸(zheng)(zheng)(zheng)發(fa)(fa)器(qi)(qi)(qi)(qi)(qi)溫度(du)升(sheng)高、庫(ku)房(fang)降溫困難。壓(ya)(ya)(ya)縮(suo)式(shi)(shi)(shi)(shi)制(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)(leng)(leng)機(ji)(ji)(ji)(ji)(ji)(ji)。依(yi)靠壓(ya)(ya)(ya)縮(suo)機(ji)(ji)(ji)(ji)(ji)(ji)的(de)(de)(de)(de)(de)(de)(de)作用(yong)(yong)提高制(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)(leng)(leng)劑(ji)(ji)(ji)的(de)(de)(de)(de)(de)(de)(de)壓(ya)(ya)(ya)力(li)以(yi)(yi)實(shi)現制(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)(leng)(leng)循環(huan)，按制(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)(leng)(leng)劑(ji)(ji)(ji)種(zhong)類又可(ke)分為(wei)(wei)(wei)蒸(zheng)(zheng)(zheng)氣壓(ya)(ya)(ya)縮(suo)式(shi)(shi)(shi)(shi)制(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)(leng)(leng)機(ji)(ji)(ji)(ji)(ji)(ji)（以(yi)(yi)液壓(ya)(ya)(ya)蒸(zheng)(zheng)(zheng)發(fa)(fa)制(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)(leng)(leng)為(wei)(wei)(wei)基礎，制(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)(leng)(leng)劑(ji)(ji)(ji)要發(fa)(fa)生周期性的(de)(de)(de)(de)(de)(de)(de)氣-液相變）和(he)氣體(ti)(ti)(ti)壓(ya)(ya)(ya)縮(suo)式(shi)(shi)(shi)(shi)制(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)(leng)(leng)機(ji)(ji)(ji)(ji)(ji)(ji)（以(yi)(yi)高壓(ya)(ya)(ya)氣體(ti)(ti)(ti)膨脹制(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)(leng)(leng)為(wei)(wei)(wei)基礎，制(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)(leng)(leng)劑(ji)(ji)(ji)始(shi)終處于氣體(ti)(ti)(ti)狀(zhuang)態）兩種(zhong)，現代制(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)(leng)(leng)機(ji)(ji)(ji)(ji)(ji)(ji)以(yi)(yi)蒸(zheng)(zheng)(zheng)氣壓(ya)(ya)(ya)縮(suo)式(shi)(shi)(shi)(shi)制(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)(leng)(leng)機(ji)(ji)(ji)(ji)(ji)(ji)應(ying)用(yong)(yong)*。②吸(xi)(xi)(xi)收(shou)(shou)(shou)(shou)(shou)式(shi)(shi)(shi)(shi)制(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)(leng)(leng)機(ji)(ji)(ji)(ji)(ji)(ji)。依(yi)靠吸(xi)(xi)(xi)收(shou)(shou)(shou)(shou)(shou)器(qi)(qi)(qi)(qi)(qi)-發(fa)(fa)生器(qi)(qi)(qi)(qi)(qi)組（熱(re)化(hua)(hua)學(xue)壓(ya)(ya)(ya)縮(suo)器(qi)(qi)(qi)(qi)(qi)）的(de)(de)(de)(de)(de)(de)(de)作用(yong)(yong)完成制(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)(leng)(leng)循環(huan)，又可(ke)分為(wei)(wei)(wei)氨水(shui)吸(xi)(xi)(xi)收(shou)(shou)(shou)(shou)(shou)式(shi)(shi)(shi)(shi)、溴化(hua)(hua)鋰吸(xi)(xi)(xi)收(shou)(shou)(shou)(shou)(shou)式(shi)(shi)(shi)(shi)和(he)吸(xi)(xi)(xi)收(shou)(shou)(shou)(shou)(shou)擴散(san)式(shi)(shi)(shi)(shi)3種(zhong)。③蒸(zheng)(zheng)(zheng)汽噴射式(shi)(shi)(shi)(shi)制(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)(leng)(leng)機(ji)(ji)(ji)(ji)(ji)(ji)。依(yi)靠蒸(zheng)(zheng)(zheng)汽噴射器(qi)(qi)(qi)(qi)(qi)（噴射式(shi)(shi)(shi)(shi)壓(ya)(ya)(ya)縮(suo)器(qi)(qi)(qi)(qi)(qi)）的(de)(de)(de)(de)(de)(de)(de)作用(yong)(yong)完成制(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)(leng)(leng)循環(huan)。④半導體(ti)(ti)(ti)制(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)(leng)(leng)器(qi)(qi)(qi)(qi)(qi)。利用(yong)(yong)半導體(ti)(ti)(ti)的(de)(de)(de)(de)(de)(de)(de)熱(re)-電(dian)效應(ying)制(zhi)(zhi)取冷(leng)(leng)(leng)(leng)(leng)(leng)(leng)(leng)量(liang)(liang)。利用(yong)(yong)吸(xi)(xi)(xi)收(shou)(shou)(shou)(shou)(shou)劑(ji)(ji)(ji)對制(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)(leng)(leng)劑(ji)(ji)(ji)的(de)(de)(de)(de)(de)(de)(de)吸(xi)(xi)(xi)附作用(yong)(yong)使制(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)(leng)(leng)劑(ji)(ji)(ji)蒸(zheng)(zheng)(zheng)發(fa)(fa)而(er)(er)制(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)(leng)(leng)。常(chang)用(yong)(yong)的(de)(de)(de)(de)(de)(de)(de)有氨——水(shui)吸(xi)(xi)(xi)收(shou)(shou)(shou)(shou)(shou)式(shi)(shi)(shi)(shi)制(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)(leng)(leng)機(ji)(ji)(ji)(ji)(ji)(ji)和(he)溴化(hua)(hua)鋰——水(shui)吸(xi)(xi)(xi)收(shou)(shou)(shou)(shou)(shou)式(shi)(shi)(shi)(shi)制(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)(leng)(leng)機(ji)(ji)(ji)(ji)(ji)(ji)，用(yong)(yong)熱(re)源作為(wei)(wei)(wei)動力(li)，消耗(hao)電(dian)力(li)少，運轉(zhuan)平穩，易損件少，能(neng)量(liang)(liang)調(diao)節(jie)范圍大，是一種(zhong)新(xin)發(fa)(fa)展起來的(de)(de)(de)(de)(de)(de)(de)制(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)(leng)(leng)(leng)機(ji)(ji)(ji)(ji)(ji)(ji)品種(zhong)。
電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)是(shi)(shi)根(gen)據通電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)導體(ti)在磁(ci)(ci)場(chang)中(zhong)受磁(ci)(ci)場(chang)力的(de)(de)(de)(de)(de)(de)(de)作(zuo)(zuo)(zuo)用(yong)(yong)而制(zhi)成的(de)(de)(de)(de)(de)(de)(de)。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)內(nei)部有(you)(you)一(yi)永磁(ci)(ci)體(ti)，在極間產生磁(ci)(ci)場(chang)，在磁(ci)(ci)場(chang)中(zhong)有(you)(you)一(yi)個(ge)(ge)線(xian)(xian)圈(quan)(quan)，線(xian)(xian)圈(quan)(quan)兩(liang)端(duan)(duan)(duan)各有(you)(you)一(yi)個(ge)(ge)游絲(si)彈簧(huang)，彈簧(huang)各連(lian)接電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)的(de)(de)(de)(de)(de)(de)(de)一(yi)個(ge)(ge)接線(xian)(xian)柱，在彈簧(huang)與線(xian)(xian)圈(quan)(quan)間由(you)(you)一(yi)個(ge)(ge)轉(zhuan)(zhuan)軸連(lian)接，在轉(zhuan)(zhuan)軸相(xiang)對(dui)(dui)于電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)的(de)(de)(de)(de)(de)(de)(de)前端(duan)(duan)(duan)，有(you)(you)一(yi)個(ge)(ge)指(zhi)針。當有(you)(you)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)通過(guo)時，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)沿彈簧(huang)、轉(zhuan)(zhuan)軸通過(guo)磁(ci)(ci)場(chang)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)切磁(ci)(ci)感線(xian)(xian)，所(suo)以受磁(ci)(ci)場(chang)力的(de)(de)(de)(de)(de)(de)(de)作(zuo)(zuo)(zuo)用(yong)(yong)，使(shi)線(xian)(xian)圈(quan)(quan)發(fa)生偏(pian)轉(zhuan)(zhuan)，帶動轉(zhuan)(zhuan)軸、指(zhi)針偏(pian)轉(zhuan)(zhuan)。由(you)(you)于磁(ci)(ci)場(chang)力的(de)(de)(de)(de)(de)(de)(de)大(da)(da)(da)小隨電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)增大(da)(da)(da)而增大(da)(da)(da)，所(suo)以就可(ke)(ke)以通過(guo)指(zhi)針的(de)(de)(de)(de)(de)(de)(de)偏(pian)轉(zhuan)(zhuan)程度來觀察電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)的(de)(de)(de)(de)(de)(de)(de)大(da)(da)(da)小。一(yi)般(ban)可(ke)(ke)直(zhi)(zhi)接測(ce)(ce)(ce)量(liang)(liang)(liang)(liang)微安(an)或毫安(an)數量(liang)(liang)(liang)(liang)級的(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)，為(wei)測(ce)(ce)(ce)更(geng)大(da)(da)(da)的(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)應(ying)有(you)(you)并聯(lian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)器(qi)(qi)（又稱(cheng)分(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)）。主要(yao)采(cai)用(yong)(yong)磁(ci)(ci)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)系(xi)(xi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)(biao)(biao)的(de)(de)(de)(de)(de)(de)(de)測(ce)(ce)(ce)量(liang)(liang)(liang)(liang)機(ji)構(gou)。分(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)值(zhi)(zhi)要(yao)使(shi)滿量(liang)(liang)(liang)(liang)程電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)通過(guo)時，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)滿偏(pian)轉(zhuan)(zhuan)，即電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)指(zhi)示達(da)到(dao)最大(da)(da)(da)。對(dui)(dui)于幾(ji)安(an)的(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)，可(ke)(ke)在電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)內(nei)設置分(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)。對(dui)(dui)于幾(ji)安(an)以上的(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)，則(ze)采(cai)用(yong)(yong)外(wai)附(fu)(fu)分(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)。大(da)(da)(da)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)分(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)值(zhi)(zhi)很小，為(wei)避免引線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)和接觸(chu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)附(fu)(fu)加于分(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)而引起(qi)誤差，分(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)要(yao)制(zhi)成四(si)端(duan)(duan)(duan)形式，即有(you)(you)兩(liang)個(ge)(ge)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)端(duan)(duan)(duan)，兩(liang)個(ge)(ge)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓端(duan)(duan)(duan)。直(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)主要(yao)采(cai)用(yong)(yong)磁(ci)(ci)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)系(xi)(xi)或電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動系(xi)(xi)測(ce)(ce)(ce)量(liang)(liang)(liang)(liang)機(ji)構(gou)(見機(ji)械式指(zhi)示電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)(biao)(biao)測(ce)(ce)(ce)量(liang)(liang)(liang)(liang)機(ji)構(gou))，這(zhe)些測(ce)(ce)(ce)量(liang)(liang)(liang)(liang)機(ji)構(gou)的(de)(de)(de)(de)(de)(de)(de)測(ce)(ce)(ce)量(liang)(liang)(liang)(liang)基本量(liang)(liang)(liang)(liang)是(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)，可(ke)(ke)用(yong)(yong)來直(zhi)(zhi)接測(ce)(ce)(ce)小電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)。對(dui)(dui)于大(da)(da)(da)量(liang)(liang)(liang)(liang)值(zhi)(zhi)的(de)(de)(de)(de)(de)(de)(de)直(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)，磁(ci)(ci)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)系(xi)(xi)測(ce)(ce)(ce)量(liang)(liang)(liang)(liang)機(ji)構(gou)要(yao)使(shi)用(yong)(yong)分(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)，也就是(shi)(shi)并聯(lian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)。它(ta)(ta)的(de)(de)(de)(de)(de)(de)(de)作(zuo)(zuo)(zuo)用(yong)(yong)是(shi)(shi)將大(da)(da)(da)部分(fen)(fen)(fen)被測(ce)(ce)(ce)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)分(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)。對(dui)(dui)約10A以下的(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)多(duo)采(cai)用(yong)(yong)內(nei)附(fu)(fu)分(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi);對(dui)(dui)更(geng)大(da)(da)(da)的(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)值(zhi)(zhi)，則(ze)使(shi)用(yong)(yong)分(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)。它(ta)(ta)采(cai)取四(si)端(duan)(duan)(duan)結構(gou)(圖(tu)a)，具有(you)(you)兩(liang)個(ge)(ge)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)端(duan)(duan)(duan)，兩(liang)個(ge)(ge)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)位端(duan)(duan)(duan)。交(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)可(ke)(ke)采(cai)用(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)系(xi)(xi)或電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動系(xi)(xi)測(ce)(ce)(ce)量(liang)(liang)(liang)(liang)機(ji)構(gou)。為(wei)使(shi)磁(ci)(ci)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)系(xi)(xi)測(ce)(ce)(ce)量(liang)(liang)(liang)(liang)機(ji)構(gou)也能用(yong)(yong)于測(ce)(ce)(ce)量(liang)(liang)(liang)(liang)交(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)，可(ke)(ke)利用(yong)(yong)整流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)或熱(re)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)偶等器(qi)(qi)件先將交(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)轉(zhuan)(zhuan)換為(wei)直(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu);由(you)(you)它(ta)(ta)們組合而成的(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)(biao)(biao)分(fen)(fen)(fen)別稱(cheng)為(wei)整流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)式電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)(見整流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)式電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)(biao)(biao))、熱(re)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)式電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)。為(wei)擴大(da)(da)(da)量(liang)(liang)(liang)(liang)程以測(ce)(ce)(ce)量(liang)(liang)(liang)(liang)大(da)(da)(da)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)，整流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)式電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)也采(cai)用(yong)(yong)分(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi);電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動系(xi)(xi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)的(de)(de)(de)(de)(de)(de)(de)做法同前;電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)系(xi)(xi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)則(ze)是(shi)(shi)加粗線(xian)(xian)圈(quan)(quan)導線(xian)(xian)、減(jian)少匝數。對(dui)(dui)于更(geng)大(da)(da)(da)的(de)(de)(de)(de)(de)(de)(de)測(ce)(ce)(ce)量(liang)(liang)(liang)(liang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)值(zhi)(zhi)需配合電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)互感器(qi)(qi)使(shi)用(yong)(yong)。通常可(ke)(ke)利用(yong)(yong)分(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)和交(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)數字電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓表(biao)(biao)(biao)(biao)(biao)構(gou)成交(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)數字電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)。
HEIDENHAIN 編碼器 557654-04
HEIDENHAIN 備件 534855-12
HEIDENHAIN 編碼器 393 692-75
HEIDENHAIN 轉換器 1BV102 ID:536422-20
HEIDENHAIN 備件 MT12W Id.Nr:231011-03
HEIDENHAIN 編碼器 390925-18
HEIDENHAIN 連接線 658110-01
HEIDENHAIN 長度計 ID:359341-02
HEIDENHAIN 備件 352611-03
HEIDENHAIN 編碼器 ID:727222-56
HEIDENHAIN 位移傳感器 ID：680983-01 AT1218
HEIDENHAIN 電子尺接頭電纜 533631-05
HEIDENHAIN 光柵 ID:557649-06
HEIDENHAIN 光柵尺 353403-P1
HEIDENHAIN 備件 667786-02
HEIDENHAIN 電纜 ID:533631-01
HEIDENHAIN 備件 EQN4255120FK06-1*R0.00...50A 549892-01
HEIDENHAIN 濾芯 810416-01
HEIDENHAIN 編碼器 ID:533110-01
HEIDENHAIN 密封條 266051-05
HEIDENHAIN 磨床探頭 MT12 ID:243602-06
HEIDENHAIN 編碼器 ID:631713-01
HEIDENHAIN 備件 291698-06
HEIDENHAIN 編碼器 667785-01
HEIDENHAIN 編碼器 249870-08
HEIDENHAIN 光柵尺 ID:557650-18
HEIDENHAIN 編碼器 393000-07
HEIDENHAIN LINEAR ENCODER光柵尺 557677-10
HEIDENHAIN 探測傳感器 511395-01
HEIDENHAIN 備件 344980-14
HEIDENHAIN 光柵尺 ID:689697-07
HEIDENHAIN 備件 No:533 110-03
HEIDENHAIN 備件 ERN1387.035-2048 ID：749147-02
HEIDENHAIN 光柵尺 ID:689697-03 LC185 340
HEIDENHAIN 探測傳感器 511395-01
HEIDENHAIN 編碼器 393000-07
HEIDENHAIN 高度計 ST1278 ID：383963-03
HEIDENHAIN 濾芯 337147-01
HEIDENHAIN 光柵尺 LC 183; ML1240; +/- 0.003mm 557680-12
HEIDENHAIN 備件 1065932-12
HEIDENHAIN 讀數頭 393 000-02
HEIDENHAIN 光柵尺電纜 533631-06 6m
HEIDENHAIN 長度測量系統 329991-14
HEIDENHAIN 接頭 291697-04（9芯）
HEIDENHAIN 光柵尺 310727-01
HEIDENHAIN 編碼器 735117-02
HEIDENHAIN 濾芯 ID 810415-01
HEIDENHAIN 編碼器 ROD486-5000 03S12-03 377240-12
HEIDENHAIN 編碼器 631713-01
HEIDENHAIN 光柵尺 572249-13
HEIDENHAIN 光柵尺 689697-11
HEIDENHAIN 編碼器 390925-04
HEIDENHAIN 備件 ID:606 689-16
HEIDENHAIN 光柵尺 689681-15
HEIDENHAIN 位移傳感器 232715-03
HEIDENHAIN 光柵測量頭 MT12W IdNr.231011-03
HEIDENHAIN 光柵尺 ID:557650-06
HEIDENHAIN 備件 534855-12
HEIDENHAIN 編碼器 375137-01
HEIDENHAIN 編碼器 636872-04
HEIDENHAIN 光柵讀數頭 LC183ML3040 557679-63
HEIDENHAIN 玻璃比例尺 526974-08
HEIDENHAIN 傳感器 393000-15
HEIDENHAIN 備件 557676-10
HEIDENHAIN 光柵尺 527392-23
HEIDENHAIN 光柵尺 572249-10
HEIDENHAIN 編碼器 735117-02
HEIDENHAIN 短光柵 MT12ID243602-06
HEIDENHAIN 備件 376834-4K
HEIDENHAIN 編碼器 586645-04
HEIDENHAIN 備件 ID:231011-03
HEIDENHAIN 光柵尺 329993-22
HEIDENHAIN 備件 360645-03
HEIDENHAIN 備件 LC483 420 ID:557649-08
HEIDENHAIN 伺服電機 LC185/5nm.ML 940mm.ID:689696-09.SN:51569793
HEIDENHAIN 長度計 ST3078 375134-02
HEIDENHAIN 位置傳感器（磁尺） LS186-240 336960-13
HEIDENHAIN 備件 MT 12W ID:231011-03
HEIDENHAIN 備件 295434-1F
HEIDENHAIN 備件 ID:317 909-36
HEIDENHAIN 電纜 310123-03
HEIDENHAIN 接頭 291697-04（9芯）
HEIDENHAIN 光柵尺 383963-03
HEIDENHAIN 光柵尺 557677-08
HEIDENHAIN 編碼器 636872-04
HEIDENHAIN 編碼器 376880-65
HEIDENHAIN 備件 557647-16
HEIDENHAIN 光柵尺 ID:341240-10
HEIDENHAIN 編碼器 529718-04
HEIDENHAIN 傳感器 383979-01
HEIDENHAIN 備件 LS186C ML 840mm ID.NR.336963-19
HEIDENHAIN 密封條 266051-05
HEIDENHAIN 編碼器 ID589611-OL
HEIDENHAIN 編碼器 ID 1065932-11 ECN 413 2048 01-58
HEIDENHAIN 光柵尺EXE盒 Id.:536397-01
HEIDENHAIN 光柵傳感器 MT12W ID:231 011-03
HEIDENHAIN 編碼器 EQN1325.049-2048 升級ID：655251-52
HEIDENHAIN 編碼器 631713-01
HEIDENHAIN 備件 RCN727F ID：529718-05
HEIDENHAIN 備件 360645-01
HEIDENHAIN 編碼器 ROQ425 521 03S17-58 ID 586634-12
HEIDENHAIN 光柵尺 LS703 ML270mm Id.Nr.336976-03
HEIDENHAIN 編碼器 L=1400 315423-03
HEIDENHAIN 光柵尺 336958-56
HEIDENHAIN 磁鼓 390925-01
HEIDENHAIN 備件 ID.376 886-A5
HEIDENHAIN 光柵尺電纜 360645-01
HEIDENHAIN 備件 393000-61
HEIDENHAIN 備件 549889-01 21581090
HEIDENHAIN 編碼器 331589-04
HEIDENHAIN 備件 ID：243602-06
HEIDENHAIN 光柵尺 622540-01
HEIDENHAIN 編碼器 RCN729 529717-02
HEIDENHAIN 伺服電機 LC183/5nm.SN:49964675W.ML:1040mm.ID:557-680-10
HEIDENHAIN 編碼器 385430-06
HEIDENHAIN 編碼器 RCN8380 667596-01
HEIDENHAIN 編碼器電纜 360645-03
HEIDENHAIN 光柵尺 572249-13
HEIDENHAIN 電子尺 383978-XX
HEIDENHAIN 備件 375133-02
HEIDENHAIN 編碼器 727221-02
HEIDENHAIN 備件 517352-17
HEIDENHAIN 光柵尺 349522-03
HEIDENHAIN 備件 315420-04
HEIDENHAIN 編碼器 528100-01
HEIDENHAIN 電纜 Id:309777-07 L7
HEIDENHAIN 旋轉編碼器 735117-52
HEIDENHAIN 光柵尺 LS186ML1440ID.NR.336960-50
HEIDENHAIN 編碼器 ID-Nr:393000-07
HEIDENHAIN 備件 ID:369 104-03
HEIDENHAIN 光柵測量頭 MT12W，12MM IDN 231011-03
HEIDENHAIN 光柵尺 329993-22
HEIDENHAIN 編碼器 L=1000 315423-01
HEIDENHAIN 電纜 551027-09
HEIDENHAIN 編碼器 ERN431 ID385438-31
HEIDENHAIN 編碼器 727221-02
HEIDENHAIN 線纜 369428-06
HEIDENHAIN 光柵尺 349522-34
HEIDENHAIN 編碼器 ERN1387.020-2048 Id.Nr.385487-03
HEIDENHAIN 編碼器 385438-30
HEIDENHAIN 備件 LC183/10nm ML1740mm 557679-17
HEIDENHAIN LINEAR SCALE LC 195S 1640 5.0 760912-46
HEIDENHAIN 光柵尺 ID：372849-05
HEIDENHAIN 編碼器 551126-01
HEIDENHAIN 備件 586654-16
HEIDENHAIN 編碼器 EQN1325 2048 62S12-78 1D 586653-12
HEIDENHAIN 編碼器 383600-01
HEIDENHAIN 編碼器 366713-02
HEIDENHAIN 編碼器 393000-07
HEIDENHAIN 編碼器 RCN5380 ID:667831-01
HEIDENHAIN 光柵尺 ID:536421-20
HEIDENHAIN 光柵尺 557650-09
HEIDENHAIN 編碼器 DSLHEI689691-06
HEIDENHAIN 濾芯 337148-01
HEIDENHAIN 編碼器 RCN8380 667596-01
HEIDENHAIN 編碼器 RON886C-36000 ID355886-04
HEIDENHAIN 電纜 533631-03
HEIDENHAIN 編碼器 ID:385487-03
HEIDENHAIN Linear glass scale cable 533631-03
HEIDENHAIN 備件 ID:760916-04
HEIDENHAIN 備件 557647-20
HEIDENHAIN 光柵尺 557679-08
HEIDENHAIN 光柵尺 557677-10
HEIDENHAIN 光柵尺 ID:557 644-07
HEIDENHAIN 粗濾芯 ID：337147-01
HEIDENHAIN 編碼器 ID:529 370-01
HEIDENHAIN 編碼器 312214-16
HEIDENHAIN 備件 375133-02
HEIDENHAIN 光柵尺 760933-21
HEIDENHAIN 備件 341240-47
HEIDENHAIN 光柵尺 557679-10
HEIDENHAIN 位移傳感器 232715-03
HEIDENHAIN 備件 ID:760916-04
HEIDENHAIN 備件 557642-14
HEIDENHAIN 編碼器 ROQ42551227S17-E0 631702-74
HEIDENHAIN 備件 533117-20
HEIDENHAIN 電纜 310123-03
HEIDENHAIN 編碼器 ERN.1381.062-2048M11 ID:727222-07
HEIDENHAIN 信號轉換線 617765-N2
HEIDENHAIN 備件 658725-03
HEIDENHAIN 光柵尺 LC483/10NM-ML920MM(帶讀數頭AELC4×3）ID557649-17
HEIDENHAIN 光柵尺(chi) LC483 ID:557653-22
HEIDENHAIN編碼器393000-07翊霈優質供應
HEIDENHAIN編碼器393000-07翊霈優質供應
