電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)是根據通(tong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)導體在(zai)磁(ci)(ci)場(chang)中(zhong)受磁(ci)(ci)場(chang)力的(de)(de)(de)(de)(de)作用(yong)而制(zhi)成的(de)(de)(de)(de)(de)。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)內(nei)部有(you)一(yi)永磁(ci)(ci)體，在(zai)極間(jian)產(chan)生磁(ci)(ci)場(chang)，在(zai)磁(ci)(ci)場(chang)中(zhong)有(you)一(yi)個線(xian)圈(quan)(quan)，線(xian)圈(quan)(quan)兩(liang)(liang)端(duan)各有(you)一(yi)個游絲彈簧(huang)，彈簧(huang)各連(lian)接(jie)(jie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)的(de)(de)(de)(de)(de)一(yi)個接(jie)(jie)線(xian)柱，在(zai)彈簧(huang)與線(xian)圈(quan)(quan)間(jian)由(you)一(yi)個轉(zhuan)軸連(lian)接(jie)(jie)，在(zai)轉(zhuan)軸相對(dui)于(yu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)的(de)(de)(de)(de)(de)前端(duan)，有(you)一(yi)個指針。當有(you)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)通(tong)過時(shi)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)沿彈簧(huang)、轉(zhuan)軸通(tong)過磁(ci)(ci)場(chang)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)切磁(ci)(ci)感線(xian)，所以(yi)(yi)受磁(ci)(ci)場(chang)力的(de)(de)(de)(de)(de)作用(yong)，使(shi)(shi)線(xian)圈(quan)(quan)發生偏(pian)轉(zhuan)，帶動轉(zhuan)軸、指針偏(pian)轉(zhuan)。由(you)于(yu)磁(ci)(ci)場(chang)力的(de)(de)(de)(de)(de)大(da)(da)(da)(da)小(xiao)隨(sui)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)增(zeng)大(da)(da)(da)(da)而增(zeng)大(da)(da)(da)(da)，所以(yi)(yi)就可(ke)(ke)以(yi)(yi)通(tong)過指針的(de)(de)(de)(de)(de)偏(pian)轉(zhuan)程度來觀察電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)的(de)(de)(de)(de)(de)大(da)(da)(da)(da)小(xiao)。一(yi)般可(ke)(ke)直(zhi)(zhi)(zhi)(zhi)接(jie)(jie)測(ce)(ce)量(liang)(liang)(liang)(liang)(liang)微安或毫(hao)安數量(liang)(liang)(liang)(liang)(liang)級(ji)的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)，為(wei)(wei)測(ce)(ce)更(geng)大(da)(da)(da)(da)的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)應有(you)并聯電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)器(qi)(qi)（又稱分(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)）。主(zhu)要采(cai)(cai)用(yong)磁(ci)(ci)電(dian)(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)(dian)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)的(de)(de)(de)(de)(de)測(ce)(ce)量(liang)(liang)(liang)(liang)(liang)機(ji)(ji)構(gou)(gou)(gou)。分(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)值要使(shi)(shi)滿量(liang)(liang)(liang)(liang)(liang)程電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)通(tong)過時(shi)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)滿偏(pian)轉(zhuan)，即電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)指示達到最大(da)(da)(da)(da)。對(dui)于(yu)幾安的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)，可(ke)(ke)在(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)內(nei)設(she)置(zhi)分(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)。對(dui)于(yu)幾安以(yi)(yi)上的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)，則(ze)采(cai)(cai)用(yong)外附分(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)。大(da)(da)(da)(da)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(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)器(qi)(qi)的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)值很小(xiao)，為(wei)(wei)避免(mian)引線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)和接(jie)(jie)觸電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)附加(jia)于(yu)分(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)而引起(qi)誤差(cha)，分(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)要制(zhi)成四(si)端(duan)形式(shi)，即有(you)兩(liang)(liang)個電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)端(duan)，兩(liang)(liang)個電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓端(duan)。直(zhi)(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)主(zhu)要采(cai)(cai)用(yong)磁(ci)(ci)電(dian)(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)(dian)動系(xi)(xi)測(ce)(ce)量(liang)(liang)(liang)(liang)(liang)機(ji)(ji)構(gou)(gou)(gou)(見機(ji)(ji)械式(shi)指示電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)測(ce)(ce)量(liang)(liang)(liang)(liang)(liang)機(ji)(ji)構(gou)(gou)(gou))，這些測(ce)(ce)量(liang)(liang)(liang)(liang)(liang)機(ji)(ji)構(gou)(gou)(gou)的(de)(de)(de)(de)(de)測(ce)(ce)量(liang)(liang)(liang)(liang)(liang)基本(ben)量(liang)(liang)(liang)(liang)(liang)是電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)，可(ke)(ke)用(yong)來直(zhi)(zhi)(zhi)(zhi)接(jie)(jie)測(ce)(ce)小(xiao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)。對(dui)于(yu)大(da)(da)(da)(da)量(liang)(liang)(liang)(liang)(liang)值的(de)(de)(de)(de)(de)直(zhi)(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(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)(dian)系(xi)(xi)測(ce)(ce)量(liang)(liang)(liang)(liang)(liang)機(ji)(ji)構(gou)(gou)(gou)要使(shi)(shi)用(yong)分(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)，也就是并聯電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)。它的(de)(de)(de)(de)(de)作用(yong)是將大(da)(da)(da)(da)部分(fen)(fen)(fen)被測(ce)(ce)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(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)。對(dui)約10A以(yi)(yi)下(xia)的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)多采(cai)(cai)用(yong)內(nei)附分(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi);對(dui)更(geng)大(da)(da)(da)(da)的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)值，則(ze)使(shi)(shi)用(yong)分(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)。它采(cai)(cai)取(qu)四(si)端(duan)結構(gou)(gou)(gou)(圖(tu)a)，具有(you)兩(liang)(liang)個電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)端(duan)，兩(liang)(liang)個電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)位端(duan)。交流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)可(ke)(ke)采(cai)(cai)用(yong)電(dian)(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)(dian)動系(xi)(xi)測(ce)(ce)量(liang)(liang)(liang)(liang)(liang)機(ji)(ji)構(gou)(gou)(gou)。為(wei)(wei)使(shi)(shi)磁(ci)(ci)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)系(xi)(xi)測(ce)(ce)量(liang)(liang)(liang)(liang)(liang)機(ji)(ji)構(gou)(gou)(gou)也能用(yong)于(yu)測(ce)(ce)量(liang)(liang)(liang)(liang)(liang)交流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)，可(ke)(ke)利用(yong)整(zheng)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)或熱電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)偶(ou)等器(qi)(qi)件(jian)先將交流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)轉(zhuan)換為(wei)(wei)直(zhi)(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu);由(you)它們組合(he)而成的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)分(fen)(fen)(fen)別稱為(wei)(wei)整(zheng)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)式(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)(見整(zheng)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)式(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao))、熱電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)式(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)。為(wei)(wei)擴大(da)(da)(da)(da)量(liang)(liang)(liang)(liang)(liang)程以(yi)(yi)測(ce)(ce)量(liang)(liang)(liang)(liang)(liang)大(da)(da)(da)(da)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)，整(zheng)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)式(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)也采(cai)(cai)用(yong)分(fen)(fen)(fen)流(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)(dian)動系(xi)(xi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)的(de)(de)(de)(de)(de)做法同前;電(dian)(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)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)則(ze)是加(jia)粗線(xian)圈(quan)(quan)導線(xian)、減(jian)少匝數。對(dui)于(yu)更(geng)大(da)(da)(da)(da)的(de)(de)(de)(de)(de)測(ce)(ce)量(liang)(liang)(liang)(liang)(liang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)值需配合(he)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)互感器(qi)(qi)使(shi)(shi)用(yong)。通(tong)常(chang)可(ke)(ke)利用(yong)分(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)和交流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)數字(zi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)構(gou)(gou)(gou)成交流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)數字(zi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)。

壓(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)開(kai)(kai)關(guan)(guan)采用(yong)高(gao)(gao)精度(du)(du)、高(gao)(gao)穩定(ding)(ding)性能(neng)(neng)的(de)壓(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)傳感(gan)器(qi)和變送電(dian)路(lu)，再經 CPU模塊化(hua)(hua)信(xin)(xin)號(hao)(hao)處理技術，實現(xian)(xian)對介(jie)質壓(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)信(xin)(xin)號(hao)(hao)的(de)檢(jian)測(ce)(ce)(ce)(ce)、顯(xian)示、報警(jing)和控(kong)(kong)制(zhi)信(xin)(xin)號(hao)(hao)輸出。壓(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)開(kai)(kai)關(guan)(guan)可以(yi)(yi)廣(guang)泛(fan)用(yong)于(yu)石油、化(hua)(hua)工(gong)(gong)(gong)、冶(ye)金、電(dian)力(li)(li)(li)(li)(li)(li)、供水等(deng)(deng)領域中對各(ge)種氣(qi)體(ti)、液體(ti)的(de)表壓(ya)(ya)(ya)、絕壓(ya)(ya)(ya)的(de)測(ce)(ce)(ce)(ce)量控(kong)(kong)制(zhi)，是工(gong)(gong)(gong)業現(xian)(xian)場理想的(de)智(zhi)能(neng)(neng)化(hua)(hua)測(ce)(ce)(ce)(ce)控(kong)(kong)儀表。壓(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)開(kai)(kai)關(guan)(guan)是與電(dian)器(qi)開(kai)(kai)關(guan)(guan)相(xiang)結合的(de)裝置，當(dang)到達預先設定(ding)(ding)的(de)流體(ti)壓(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)時，開(kai)(kai)關(guan)(guan)接(jie)(jie)點動作。主要(yao)應用(yong)于(yu)電(dian)廠、石化(hua)(hua)、冶(ye)金行業等(deng)(deng)工(gong)(gong)(gong)業設備(bei)上輸出報警(jing)或(huo)控(kong)(kong)制(zhi)信(xin)(xin)號(hao)(hao)，在工(gong)(gong)(gong)業領域中有著重要(yao)的(de)用(yong)途，能(neng)(neng)預防(fang)生(sheng)(sheng)(sheng)產(chan)工(gong)(gong)(gong)程中重要(yao)裝置的(de)損壞，避免了重大生(sheng)(sheng)(sheng)產(chan)事故地發生(sheng)(sheng)(sheng)。電(dian)子壓(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)開(kai)(kai)關(guan)(guan)是通(tong)過(guo)高(gao)(gao)精度(du)(du)儀表放大器(qi)放大壓(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)信(xin)(xin)號(hao)(hao)，通(tong)過(guo)高(gao)(gao)速(su)MCU采集并處理數(shu)據，內(nei)置精密傳感(gan)器(qi)進行補(bu)償，是檢(jian)測(ce)(ce)(ce)(ce)壓(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)、液位信(xin)(xin)號(hao)(hao)，實現(xian)(xian)壓(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)、液位監測(ce)(ce)(ce)(ce)和控(kong)(kong)制(zhi)的(de)高(gao)(gao)精度(du)(du)設備(bei)。廣(guang)泛(fan)使用(yong)在化(hua)(hua)工(gong)(gong)(gong)、機械、水文、電(dian)力(li)(li)(li)(li)(li)(li)、環保等(deng)(deng)測(ce)(ce)(ce)(ce)量氣(qi)體(ti)、液體(ti)壓(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)的(de)自(zi)動化(hua)(hua)系(xi)統中。因為調節方便(bian)靈活，安裝簡單，可以(yi)(yi)替代大部分(fen)使用(yong)液位開(kai)(kai)關(guan)(guan)的(de)場合.壓(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)開(kai)(kai)關(guan)(guan)的(de)工(gong)(gong)(gong)作原理：是當(dang)系(xi)統內(nei)壓(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)高(gao)(gao)于(yu)或(huo)低于(yu)額定(ding)(ding)的(de)安全壓(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)時，感(gan)應器(qi)內(nei)碟(die)片瞬時發生(sheng)(sheng)(sheng)移動，通(tong)過(guo)連(lian)接(jie)(jie)導桿(gan)推動開(kai)(kai)關(guan)(guan)接(jie)(jie)頭接(jie)(jie)通(tong)或(huo)斷(duan)開(kai)(kai)，當(dang)壓(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)降至或(huo)升額定(ding)(ding)的(de)恢復值時，碟(die)片瞬時復位，開(kai)(kai)關(guan)(guan)自(zi)動復位，或(huo)者簡單的(de)說是當(dang)被測(ce)(ce)(ce)(ce)壓(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)超過(guo)額定(ding)(ding)值時，彈性元件(jian)(jian)的(de)自(zi)由端(duan)產(chan)生(sheng)(sheng)(sheng)位移，直接(jie)(jie)或(huo)經過(guo)比(bi)較后推動開(kai)(kai)關(guan)(guan)元件(jian)(jian)，改(gai)變開(kai)(kai)關(guan)(guan)元件(jian)(jian)的(de)通(tong)斷(duan)狀態，達到控(kong)(kong)制(zhi)被測(ce)(ce)(ce)(ce)壓(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)的(de)目的(de)。壓(ya)(ya)(ya)力(li)(li)(li)(li)(li)(li)開(kai)(kai)關(guan)(guan)采用(yong)的(de)彈性元件(jian)(jian)有單圈彈簧管、膜片、膜盒(he)及波紋管等(deng)(deng)。 

WEIGEL    DIGITAL VOLTMETER    DMA14-31E20R-S1
WEIGEL    90°指針表    PSQ48(4~20mA 帶零位調整）48mmX48mm
WEIGEL    分流器    SHUNT 60MV 500A KL 0.5 DIN43703， 137-9064
WEIGEL    備件    LSP96K
WEIGEL    備件    WQ96/2S
WEIGEL    電流表    RW96MIN
WEIGEL    編碼器    5.71 VDC 0-400A 刻度0-240度 0.424005671
WEIGEL    電流表    EQ48RS/0-250/500mA 表盤尺寸47*47mm
WEIGEL    電流表    PQ48K  4...20mA  0...315Bar
WEIGEL    分流器    800.7339.S.1KA.60mV
WEIGEL    分流器    869.7330.1 50KA/250ms
WEIGEL    備件    TUA2.2
WEIGEL    電壓表    EQ96K 100/120V 0-20/24kV
WEIGEL    備件    PQ 72 INPUT-10V DC
WEIGEL    備件    DGW2.0
WEIGEL    電流表    PQ96K MESSB.0-10V;SKALA 0-10A Ammeter
WEIGEL    電流表    AMPQ72KDZS010 4-20mA Skala: 0-400A
WEIGEL    電流表    PQ96K
WEIGEL    電流表    PQ96K 10V 0-8000A
WEIGEL    備件    DSA13-NA50/AIRR-02
WEIGEL    電流表    EQ96-X 150/1 0-150A/750A
WEIGEL    備件    EQ48-MESSB:25A-SKALA:0-25A+STTX*
WEIGEL    表    EQ96K 0-3.6 kA 2500/1A
WEIGEL    電流表    PQ96K
WEIGEL    電流轉換器    AUE2.2  0-1A 4-20mA
WEIGEL    meter with moving    LSP48-4-20MA DC current
WEIGEL    電流表    EQ96K 5/10A
WEIGEL    儀表    PQ96 0-60MV
WEIGEL    分流器    5KA 30MV
WEIGEL    備件    Type: VQ72K 0-750V Production ID: 1TNS08030129R1
WEIGEL    備件    FQ96/2
WEIGEL    傳感器    PQ48RS
WEIGEL    DIGITAL VOLTMETER    DMA14-31E20R-S1
WEIGEL    備件    EQ144K/1A/80A
WEIGEL    壓力表    EQ96K500V
WEIGEL    電器件    SHUNT 6000A/60MV/CLASS 0.5
WEIGEL    電流表    0-50mA電流表    50VCATIII
WEIGEL    備件    EQ96K 0-1A =》0-1600A
WEIGEL    電流變送器    電流變送器/A1U2.0
WEIGEL    速度表    LSSM3 4...20mA 0...8rpm
WEIGEL    電流表    EQ144K/1A/20A
WEIGEL    電流表    EQ 72K   N/1A AC
WEIGEL    電流表    RW96min/max 150V(0-1A）
WEIGEL    備件    PQ 96
WEIGEL    備件    DPA 10-31E10G
WEIGEL    數字顯示表    DGA100-40A10GD-2 SN4113-001
WEIGEL    分流器    150A/60MV
WEIGEL    備件    DAS10-40P1R NR：943622-003
WEIGEL    功率因數變送器    DUW2.1
WEIGEL    電流表    PQ96K
WEIGEL    Ammeter    EQ72K 150/5A
WEIGEL    儀表    PQ96 60-0-60MV
WEIGEL    電壓表    EQ96K-500V
WEIGEL    滑(hua)差表(biao)    SY96S

WEIGEL電流表 RW96MIN翊霈代理供應

WEIGEL電流表 RW96MIN翊霈代理供應