電(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)表(biao)(biao)(biao)是(shi)根據通電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)導體在(zai)(zai)磁(ci)(ci)(ci)(ci)場(chang)(chang)(chang)中受磁(ci)(ci)(ci)(ci)場(chang)(chang)(chang)力的(de)(de)(de)(de)(de)(de)(de)(de)作(zuo)用(yong)(yong)而(er)制(zhi)成的(de)(de)(de)(de)(de)(de)(de)(de)。電(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)表(biao)(biao)(biao)內(nei)部有(you)(you)一(yi)(yi)永磁(ci)(ci)(ci)(ci)體，在(zai)(zai)極(ji)間產(chan)生磁(ci)(ci)(ci)(ci)場(chang)(chang)(chang)，在(zai)(zai)磁(ci)(ci)(ci)(ci)場(chang)(chang)(chang)中有(you)(you)一(yi)(yi)個(ge)(ge)線(xian)圈(quan)(quan)，線(xian)圈(quan)(quan)兩端(duan)(duan)各(ge)有(you)(you)一(yi)(yi)個(ge)(ge)游絲彈(dan)簧，彈(dan)簧各(ge)連接(jie)(jie)電(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)表(biao)(biao)(biao)的(de)(de)(de)(de)(de)(de)(de)(de)一(yi)(yi)個(ge)(ge)接(jie)(jie)線(xian)柱，在(zai)(zai)彈(dan)簧與線(xian)圈(quan)(quan)間由一(yi)(yi)個(ge)(ge)轉(zhuan)(zhuan)(zhuan)軸(zhou)(zhou)(zhou)連接(jie)(jie)，在(zai)(zai)轉(zhuan)(zhuan)(zhuan)軸(zhou)(zhou)(zhou)相對于(yu)電(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)表(biao)(biao)(biao)的(de)(de)(de)(de)(de)(de)(de)(de)前(qian)端(duan)(duan)，有(you)(you)一(yi)(yi)個(ge)(ge)指(zhi)針(zhen)。當有(you)(you)電(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)通過(guo)時，電(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)沿彈(dan)簧、轉(zhuan)(zhuan)(zhuan)軸(zhou)(zhou)(zhou)通過(guo)磁(ci)(ci)(ci)(ci)場(chang)(chang)(chang)，電(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)切磁(ci)(ci)(ci)(ci)感(gan)線(xian)，所以受磁(ci)(ci)(ci)(ci)場(chang)(chang)(chang)力的(de)(de)(de)(de)(de)(de)(de)(de)作(zuo)用(yong)(yong)，使(shi)(shi)線(xian)圈(quan)(quan)發生偏(pian)轉(zhuan)(zhuan)(zhuan)，帶動(dong)(dong)轉(zhuan)(zhuan)(zhuan)軸(zhou)(zhou)(zhou)、指(zhi)針(zhen)偏(pian)轉(zhuan)(zhuan)(zhuan)。由于(yu)磁(ci)(ci)(ci)(ci)場(chang)(chang)(chang)力的(de)(de)(de)(de)(de)(de)(de)(de)大(da)(da)小(xiao)隨電(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)增大(da)(da)而(er)增大(da)(da)，所以就可(ke)以通過(guo)指(zhi)針(zhen)的(de)(de)(de)(de)(de)(de)(de)(de)偏(pian)轉(zhuan)(zhuan)(zhuan)程(cheng)度來觀察電(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)的(de)(de)(de)(de)(de)(de)(de)(de)大(da)(da)小(xiao)。一(yi)(yi)般可(ke)直接(jie)(jie)測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)微安(an)或毫安(an)數(shu)量(liang)(liang)(liang)(liang)(liang)級的(de)(de)(de)(de)(de)(de)(de)(de)電(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)，為測(ce)(ce)(ce)(ce)更(geng)大(da)(da)的(de)(de)(de)(de)(de)(de)(de)(de)電(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)，電(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)表(biao)(biao)(biao)應有(you)(you)并聯電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻器(qi)(qi)(qi)(qi)(qi)（又稱分(fen)(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)(qi)）。主要(yao)(yao)采(cai)(cai)(cai)(cai)(cai)用(yong)(yong)磁(ci)(ci)(ci)(ci)電(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)表(biao)(biao)(biao)的(de)(de)(de)(de)(de)(de)(de)(de)測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)機(ji)構(gou)(gou)(gou)(gou)(gou)。分(fen)(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻值(zhi)(zhi)要(yao)(yao)使(shi)(shi)滿量(liang)(liang)(liang)(liang)(liang)程(cheng)電(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)通過(guo)時，電(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)表(biao)(biao)(biao)滿偏(pian)轉(zhuan)(zhuan)(zhuan)，即電(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)表(biao)(biao)(biao)指(zhi)示達到最大(da)(da)。對于(yu)幾安(an)的(de)(de)(de)(de)(de)(de)(de)(de)電(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)，可(ke)在(zai)(zai)電(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)表(biao)(biao)(biao)內(nei)設置分(fen)(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)(qi)。對于(yu)幾安(an)以上的(de)(de)(de)(de)(de)(de)(de)(de)電(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)，則(ze)(ze)采(cai)(cai)(cai)(cai)(cai)用(yong)(yong)外附(fu)分(fen)(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)(qi)。大(da)(da)電(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)分(fen)(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻值(zhi)(zhi)很小(xiao)，為避免(mian)引線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻和接(jie)(jie)觸電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻附(fu)加(jia)于(yu)分(fen)(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)(qi)而(er)引起誤差，分(fen)(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)(qi)要(yao)(yao)制(zhi)成四端(duan)(duan)形(xing)式，即有(you)(you)兩個(ge)(ge)電(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)端(duan)(duan)，兩個(ge)(ge)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓端(duan)(duan)。直流(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)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)主要(yao)(yao)采(cai)(cai)(cai)(cai)(cai)用(yong)(yong)磁(ci)(ci)(ci)(ci)電(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)動(dong)(dong)系(xi)(xi)測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)機(ji)構(gou)(gou)(gou)(gou)(gou)(見(jian)機(ji)械式指(zhi)示電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)機(ji)構(gou)(gou)(gou)(gou)(gou))，這(zhe)些測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)機(ji)構(gou)(gou)(gou)(gou)(gou)的(de)(de)(de)(de)(de)(de)(de)(de)測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)基本量(liang)(liang)(liang)(liang)(liang)是(shi)電(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)，可(ke)用(yong)(yong)來直接(jie)(jie)測(ce)(ce)(ce)(ce)小(xiao)電(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)。對于(yu)大(da)(da)量(liang)(liang)(liang)(liang)(liang)值(zhi)(zhi)的(de)(de)(de)(de)(de)(de)(de)(de)直流(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)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)，磁(ci)(ci)(ci)(ci)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)系(xi)(xi)測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)機(ji)構(gou)(gou)(gou)(gou)(gou)要(yao)(yao)使(shi)(shi)用(yong)(yong)分(fen)(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)(qi)，也就是(shi)并聯電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻。它的(de)(de)(de)(de)(de)(de)(de)(de)作(zuo)用(yong)(yong)是(shi)將大(da)(da)部分(fen)(fen)(fen)(fen)(fen)被測(ce)(ce)(ce)(ce)電(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)分(fen)(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)。對約10A以下的(de)(de)(de)(de)(de)(de)(de)(de)電(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)多采(cai)(cai)(cai)(cai)(cai)用(yong)(yong)內(nei)附(fu)分(fen)(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)(qi);對更(geng)大(da)(da)的(de)(de)(de)(de)(de)(de)(de)(de)電(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)值(zhi)(zhi)，則(ze)(ze)使(shi)(shi)用(yong)(yong)分(fen)(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)(qi)。它采(cai)(cai)(cai)(cai)(cai)取四端(duan)(duan)結構(gou)(gou)(gou)(gou)(gou)(圖a)，具有(you)(you)兩個(ge)(ge)電(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)端(duan)(duan)，兩個(ge)(ge)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)位(wei)端(duan)(duan)。交(jiao)流(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)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)可(ke)采(cai)(cai)(cai)(cai)(cai)用(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)系(xi)(xi)或電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)系(xi)(xi)測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)機(ji)構(gou)(gou)(gou)(gou)(gou)。為使(shi)(shi)磁(ci)(ci)(ci)(ci)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)系(xi)(xi)測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)機(ji)構(gou)(gou)(gou)(gou)(gou)也能用(yong)(yong)于(yu)測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)交(jiao)流(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)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)，可(ke)利用(yong)(yong)整流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)(qi)或熱(re)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)偶等器(qi)(qi)(qi)(qi)(qi)件(jian)先將交(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)轉(zhuan)(zhuan)(zhuan)換(huan)為直流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu);由它們(men)組(zu)合(he)而(er)成的(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)分(fen)(fen)(fen)(fen)(fen)別稱為整流(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)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(見(jian)整流(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)表(biao)(biao)(biao))、熱(re)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)式電(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)表(biao)(biao)(biao)。為擴大(da)(da)量(liang)(liang)(liang)(liang)(liang)程(cheng)以測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)大(da)(da)電(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)，整流(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)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)也采(cai)(cai)(cai)(cai)(cai)用(yong)(yong)分(fen)(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)(qi);電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)系(xi)(xi)電(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)表(biao)(biao)(biao)的(de)(de)(de)(de)(de)(de)(de)(de)做法同前(qian);電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)系(xi)(xi)電(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)表(biao)(biao)(biao)則(ze)(ze)是(shi)加(jia)粗線(xian)圈(quan)(quan)導線(xian)、減少匝數(shu)。對于(yu)更(geng)大(da)(da)的(de)(de)(de)(de)(de)(de)(de)(de)測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)電(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)值(zhi)(zhi)需配(pei)合(he)電(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)互感(gan)器(qi)(qi)(qi)(qi)(qi)使(shi)(shi)用(yong)(yong)。通常可(ke)利用(yong)(yong)分(fen)(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)(qi)和交(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)數(shu)字電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓表(biao)(biao)(biao)構(gou)(gou)(gou)(gou)(gou)成交(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)數(shu)字電(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)表(biao)(biao)(biao)。

發電機能把機械能轉換成電能，干電池能把化學能轉換成電能。發電機、電池本身并不帶電，它的兩極分別有正負電荷，由正負電荷產生電壓（電流是電荷在電壓的作用下定向移動而形成的），電荷導體里本來就有，要產生電流只需要加上電壓即可，當電池兩極接上導體時為了產生電流而把正負電荷釋放出去，當電荷散盡時，也就荷盡流（壓）消了。干電池等叫做電源。通過變壓器和整流器，把交流電變成直流電的裝置叫做整流電源。能提供信號的電子設備叫做信號源。晶體三極管能把前面送來的信號加以放大，又把放大了的信號傳送到后面的電路中去。晶體三極管對后面的電路來說，也可以看做是信號源。整流電源、信號源有時也叫做電源。
WEIGEL    備件    BIEQ 72K 15min 3000/1A
WEIGEL    傳感器    PQ96K 0-40V
WEIGEL    備件    DGW2.0
WEIGEL    行程顯示器    DAS10-NS40/P1R-06
WEIGEL    電流表    PQ96K-+/-60MV/6;5KA
WEIGEL    電壓表    EQ96K 100/120V 0-20/24kV
WEIGEL    安培表    PQ72K 0-20MA
WEIGEL    壓力表    4-20mA(PRE[P.)
WEIGEL    雙頻表    FQ96/2 100V 45-55HZ
WEIGEL    電流表    PQ96K measurement 0-100%
WEIGEL    電流表    AMEQ72KLZS001
WEIGEL    電流表    EQ96K 300/1
WEIGEL    傾角顯示屏    DSA55-NS50/A2RW-12
WEIGEL    電壓表    EQ96K-500V
WEIGEL    電流表    P72PRS
WEIGEL    電流表    EQ48K 15/5A
WEIGEL    電流顯示表    PQ96K60-0-60mV DC本體型規:PQ96K
WEIGEL    電流表    EQ72  0-100/5A
WEIGEL    備件    EQ72K 100/5A 600V
WEIGEL    電表    GQ96RS(3-15kV)   11.5 kv / 110 v
WEIGEL    備件    FQ96/2
WEIGEL    電流負載表    PQ72K 10V 120%
WEIGEL    電器件    DMA14- 31A20R- S3
WEIGEL    顯示器    DAS10-40P1R  S-NR:1040128-002
WEIGEL    開關    開關用于Type EQ 72K Art.N:4840 AMEQ 72KPZS 00，Ammeter 0-20A direct with red mark in ship style
WEIGEL    電流表    PQ96K-+/-60MV/6;5KA
WEIGEL    儀表    PQ48K 0-40microA
WEIGEL    電壓轉換器    AU2.0  0-1A
WEIGEL    電流表    電流表 PQ 48K  4-20mA
WEIGEL    動鐵式儀表    DC Skala 0-X (V/A) （Moving-iron meter DC Skala 0-X (V/A) ）
WEIGEL    備件    EQ96K  0-1A=》0-800A
WEIGEL    備件    EQ96K 0-1A =》0-1600A
WEIGEL    電流表    EQ96K    1A 0-30KA
WEIGEL    電壓轉換器    AU2.0  0-1A
WEIGEL    電流表    EQ 72K   N/1A AC
WEIGEL    傳感器    PQ96K 60-0-60mv
WEIGEL    備件    LSP96K 4-20mA 90×90mm
WEIGEL    變送器    A1U2.2 輸入0-5A(48-62HZ) 輸出4-20MA 電壓195-253VAC
WEIGEL    電流轉換器    AUE2.2  0-1A 4-20mA
WEIGEL    電流表    EQ48K 15/5A
WEIGEL    電器件    SHUNT 2500A/60MV/CLASS 0.5
WEIGEL    備件    FQ96/2
WEIGEL    備件    AUE2.2 0-1A 4-20MA 220V
WEIGEL    電流變送器    電流變送器/A1U2.0
WEIGEL    電壓表    PQ96K-+/-30VDC
WEIGEL    備件    Type: AU2.0 Nr: 21090803 0.5A48.62Hz 0.20mA
WEIGEL    備件    EQ72K 100/5A 600V
WEIGEL    備件    BIEQ 72K 15min 3000/1A
WEIGEL    備件    WQ96RS SCALE:0-24KV
WEIGEL    電流表    0-1A電流表    RW96MIN/MAX

WEIGEL 電流表 EQ48K 15/5A翊霈代理供應

WEIGEL 電流表 EQ48K 15/5A翊霈代理供應