電(dian)(dian)(dian)(dian)(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)(liu)(liu)(liu)(liu)表(biao)(biao)是(shi)根據通(tong)(tong)(tong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)導體在磁(ci)(ci)(ci)(ci)場中受磁(ci)(ci)(ci)(ci)場力的(de)(de)(de)(de)(de)(de)作用(yong)(yong)而(er)制成的(de)(de)(de)(de)(de)(de)。電(dian)(dian)(dian)(dian)(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)(liu)(liu)(liu)(liu)表(biao)(biao)內(nei)(nei)部有(you)(you)一(yi)(yi)(yi)永(yong)磁(ci)(ci)(ci)(ci)體，在極(ji)間產生磁(ci)(ci)(ci)(ci)場，在磁(ci)(ci)(ci)(ci)場中有(you)(you)一(yi)(yi)(yi)個(ge)(ge)(ge)線圈(quan)，線圈(quan)兩(liang)(liang)端(duan)各有(you)(you)一(yi)(yi)(yi)個(ge)(ge)(ge)游絲彈簧，彈簧各連(lian)接電(dian)(dian)(dian)(dian)(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)(liu)(liu)(liu)(liu)表(biao)(biao)的(de)(de)(de)(de)(de)(de)一(yi)(yi)(yi)個(ge)(ge)(ge)接線柱，在彈簧與線圈(quan)間由(you)(you)一(yi)(yi)(yi)個(ge)(ge)(ge)轉(zhuan)(zhuan)軸(zhou)(zhou)連(lian)接，在轉(zhuan)(zhuan)軸(zhou)(zhou)相(xiang)對(dui)(dui)于(yu)(yu)電(dian)(dian)(dian)(dian)(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)(liu)(liu)(liu)(liu)表(biao)(biao)的(de)(de)(de)(de)(de)(de)前端(duan)，有(you)(you)一(yi)(yi)(yi)個(ge)(ge)(ge)指針(zhen)。當有(you)(you)電(dian)(dian)(dian)(dian)(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)(liu)(liu)(liu)(liu)通(tong)(tong)(tong)過(guo)時，電(dian)(dian)(dian)(dian)(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)(liu)(liu)(liu)(liu)沿彈簧、轉(zhuan)(zhuan)軸(zhou)(zhou)通(tong)(tong)(tong)過(guo)磁(ci)(ci)(ci)(ci)場，電(dian)(dian)(dian)(dian)(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)(liu)(liu)(liu)(liu)切磁(ci)(ci)(ci)(ci)感(gan)線，所以受磁(ci)(ci)(ci)(ci)場力的(de)(de)(de)(de)(de)(de)作用(yong)(yong)，使線圈(quan)發(fa)生偏(pian)(pian)轉(zhuan)(zhuan)，帶動轉(zhuan)(zhuan)軸(zhou)(zhou)、指針(zhen)偏(pian)(pian)轉(zhuan)(zhuan)。由(you)(you)于(yu)(yu)磁(ci)(ci)(ci)(ci)場力的(de)(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)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)增大(da)(da)(da)(da)而(er)增大(da)(da)(da)(da)，所以就可(ke)(ke)以通(tong)(tong)(tong)過(guo)指針(zhen)的(de)(de)(de)(de)(de)(de)偏(pian)(pian)轉(zhuan)(zhuan)程(cheng)度來觀(guan)察電(dian)(dian)(dian)(dian)(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)(liu)(liu)(liu)(liu)的(de)(de)(de)(de)(de)(de)大(da)(da)(da)(da)小(xiao)。一(yi)(yi)(yi)般可(ke)(ke)直接測(ce)(ce)量(liang)(liang)微安或(huo)毫安數(shu)量(liang)(liang)級的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(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)(liu)(liu)(liu)(liu)，為(wei)測(ce)(ce)更大(da)(da)(da)(da)的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(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)(liu)(liu)(liu)(liu)，電(dian)(dian)(dian)(dian)(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)(liu)(liu)(liu)(liu)表(biao)(biao)應有(you)(you)并聯(lian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻器(qi)(qi)（又稱分(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)）。主要采(cai)(cai)用(yong)(yong)磁(ci)(ci)(ci)(ci)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)系(xi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)的(de)(de)(de)(de)(de)(de)測(ce)(ce)量(liang)(liang)機(ji)構(gou)(gou)。分(fen)流(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)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻值(zhi)(zhi)(zhi)要使滿量(liang)(liang)程(cheng)電(dian)(dian)(dian)(dian)(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)(liu)(liu)(liu)(liu)通(tong)(tong)(tong)過(guo)時，電(dian)(dian)(dian)(dian)(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)(liu)(liu)(liu)(liu)表(biao)(biao)滿偏(pian)(pian)轉(zhuan)(zhuan)，即電(dian)(dian)(dian)(dian)(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)(liu)(liu)(liu)(liu)表(biao)(biao)指示達(da)到(dao)最(zui)大(da)(da)(da)(da)。對(dui)(dui)于(yu)(yu)幾安的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(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)(liu)(liu)(liu)(liu)，可(ke)(ke)在電(dian)(dian)(dian)(dian)(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)(liu)(liu)(liu)(liu)表(biao)(biao)內(nei)(nei)設置(zhi)分(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)。對(dui)(dui)于(yu)(yu)幾安以上的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(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)(liu)(liu)(liu)(liu)，則(ze)采(cai)(cai)用(yong)(yong)外附(fu)分(fen)流(liu)(liu)(liu)(liu)(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)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)分(fen)流(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)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻值(zhi)(zhi)(zhi)很小(xiao)，為(wei)避免引(yin)(yin)線電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻和(he)接觸電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻附(fu)加(jia)于(yu)(yu)分(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)而(er)引(yin)(yin)起(qi)誤差，分(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)要制成四端(duan)形式(shi)(shi)，即有(you)(you)兩(liang)(liang)個(ge)(ge)(ge)電(dian)(dian)(dian)(dian)(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)(liu)(liu)(liu)(liu)端(duan)，兩(liang)(liang)個(ge)(ge)(ge)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓端(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)(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)主要采(cai)(cai)用(yong)(yong)磁(ci)(ci)(ci)(ci)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)系(xi)或(huo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動系(xi)測(ce)(ce)量(liang)(liang)機(ji)構(gou)(gou)(見機(ji)械式(shi)(shi)指示電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)測(ce)(ce)量(liang)(liang)機(ji)構(gou)(gou))，這些測(ce)(ce)量(liang)(liang)機(ji)構(gou)(gou)的(de)(de)(de)(de)(de)(de)測(ce)(ce)量(liang)(liang)基本量(liang)(liang)是(shi)電(dian)(dian)(dian)(dian)(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)(liu)(liu)(liu)(liu)，可(ke)(ke)用(yong)(yong)來直接測(ce)(ce)小(xiao)電(dian)(dian)(dian)(dian)(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)(liu)(liu)(liu)(liu)。對(dui)(dui)于(yu)(yu)大(da)(da)(da)(da)量(liang)(liang)值(zhi)(zhi)(zhi)的(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)(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)(dian)(dian)(dian)(dian)(dian)(dian)系(xi)測(ce)(ce)量(liang)(liang)機(ji)構(gou)(gou)要使用(yong)(yong)分(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)，也就是(shi)并聯(lian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻。它(ta)的(de)(de)(de)(de)(de)(de)作用(yong)(yong)是(shi)將大(da)(da)(da)(da)部分(fen)被測(ce)(ce)電(dian)(dian)(dian)(dian)(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)(liu)(liu)(liu)(liu)分(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)。對(dui)(dui)約10A以下(xia)的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(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)(liu)(liu)(liu)(liu)多采(cai)(cai)用(yong)(yong)內(nei)(nei)附(fu)分(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi);對(dui)(dui)更大(da)(da)(da)(da)的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(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)(liu)(liu)(liu)(liu)值(zhi)(zhi)(zhi)，則(ze)使用(yong)(yong)分(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)。它(ta)采(cai)(cai)取四端(duan)結構(gou)(gou)(圖a)，具有(you)(you)兩(liang)(liang)個(ge)(ge)(ge)電(dian)(dian)(dian)(dian)(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)(liu)(liu)(liu)(liu)端(duan)，兩(liang)(liang)個(ge)(ge)(ge)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)位端(duan)。交(jiao)(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)(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)可(ke)(ke)采(cai)(cai)用(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)系(xi)或(huo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動系(xi)測(ce)(ce)量(liang)(liang)機(ji)構(gou)(gou)。為(wei)使磁(ci)(ci)(ci)(ci)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)系(xi)測(ce)(ce)量(liang)(liang)機(ji)構(gou)(gou)也能(neng)用(yong)(yong)于(yu)(yu)測(ce)(ce)量(liang)(liang)交(jiao)(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)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)，可(ke)(ke)利(li)用(yong)(yong)整流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)或(huo)熱電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)偶(ou)等器(qi)(qi)件先將交(jiao)(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)轉(zhuan)(zhuan)換為(wei)直流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu);由(you)(you)它(ta)們組合(he)而(er)成的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)分(fen)別稱為(wei)整流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)式(shi)(shi)電(dian)(dian)(dian)(dian)(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)(liu)(liu)(liu)(liu)表(biao)(biao)(見整流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao))、熱電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)式(shi)(shi)電(dian)(dian)(dian)(dian)(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)(liu)(liu)(liu)(liu)表(biao)(biao)。為(wei)擴大(da)(da)(da)(da)量(liang)(liang)程(cheng)以測(ce)(ce)量(liang)(liang)大(da)(da)(da)(da)電(dian)(dian)(dian)(dian)(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)(liu)(liu)(liu)(liu)，整流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)式(shi)(shi)電(dian)(dian)(dian)(dian)(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)(liu)(liu)(liu)(liu)表(biao)(biao)也采(cai)(cai)用(yong)(yong)分(fen)流(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)(dian)(dian)(dian)(dian)(dian)動系(xi)電(dian)(dian)(dian)(dian)(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)(liu)(liu)(liu)(liu)表(biao)(biao)的(de)(de)(de)(de)(de)(de)做(zuo)法(fa)同前;電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)系(xi)電(dian)(dian)(dian)(dian)(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)(liu)(liu)(liu)(liu)表(biao)(biao)則(ze)是(shi)加(jia)粗線圈(quan)導線、減少匝數(shu)。對(dui)(dui)于(yu)(yu)更大(da)(da)(da)(da)的(de)(de)(de)(de)(de)(de)測(ce)(ce)量(liang)(liang)電(dian)(dian)(dian)(dian)(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)(liu)(liu)(liu)(liu)值(zhi)(zhi)(zhi)需配合(he)電(dian)(dian)(dian)(dian)(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)(liu)(liu)(liu)(liu)互(hu)感(gan)器(qi)(qi)使用(yong)(yong)。通(tong)(tong)(tong)常(chang)可(ke)(ke)利(li)用(yong)(yong)分(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)和(he)交(jiao)(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)(dian)(dian)(dian)(dian)(dian)(dian)壓表(biao)(biao)構(gou)(gou)成交(jiao)(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)(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)。

壓(ya)(ya)力(li)(li)(li)(li)開(kai)關(guan)(guan)(guan)采(cai)用(yong)(yong)高(gao)精(jing)度、高(gao)穩定(ding)(ding)性能的(de)(de)(de)(de)(de)(de)(de)(de)壓(ya)(ya)力(li)(li)(li)(li)傳感器(qi)和(he)變送電路，再經 CPU模塊化(hua)(hua)信(xin)號(hao)(hao)處理(li)(li)技術(shu)，實現對(dui)(dui)介(jie)質壓(ya)(ya)力(li)(li)(li)(li)信(xin)號(hao)(hao)的(de)(de)(de)(de)(de)(de)(de)(de)檢測(ce)(ce)(ce)、顯(xian)示(shi)、報警(jing)和(he)控(kong)(kong)制信(xin)號(hao)(hao)輸(shu)出。壓(ya)(ya)力(li)(li)(li)(li)開(kai)關(guan)(guan)(guan)可以(yi)廣(guang)泛(fan)(fan)用(yong)(yong)于石油、化(hua)(hua)工(gong)、冶(ye)金(jin)、電力(li)(li)(li)(li)、供水等領(ling)域中(zhong)對(dui)(dui)各種(zhong)氣體(ti)、液體(ti)的(de)(de)(de)(de)(de)(de)(de)(de)表壓(ya)(ya)、絕壓(ya)(ya)的(de)(de)(de)(de)(de)(de)(de)(de)測(ce)(ce)(ce)量控(kong)(kong)制，是(shi)工(gong)業(ye)現場(chang)理(li)(li)想(xiang)的(de)(de)(de)(de)(de)(de)(de)(de)智能化(hua)(hua)測(ce)(ce)(ce)控(kong)(kong)儀表。壓(ya)(ya)力(li)(li)(li)(li)開(kai)關(guan)(guan)(guan)是(shi)與電器(qi)開(kai)關(guan)(guan)(guan)相(xiang)結合的(de)(de)(de)(de)(de)(de)(de)(de)裝(zhuang)(zhuang)置(zhi)，當(dang)(dang)到達預先設定(ding)(ding)的(de)(de)(de)(de)(de)(de)(de)(de)流(liu)體(ti)壓(ya)(ya)力(li)(li)(li)(li)時(shi)(shi)，開(kai)關(guan)(guan)(guan)接點動(dong)作(zuo)。主要(yao)應(ying)用(yong)(yong)于電廠(chang)、石化(hua)(hua)、冶(ye)金(jin)行(xing)(xing)業(ye)等工(gong)業(ye)設備(bei)上輸(shu)出報警(jing)或控(kong)(kong)制信(xin)號(hao)(hao)，在(zai)工(gong)業(ye)領(ling)域中(zhong)有著重(zhong)要(yao)的(de)(de)(de)(de)(de)(de)(de)(de)用(yong)(yong)途，能預防(fang)生(sheng)產工(gong)程中(zhong)重(zhong)要(yao)裝(zhuang)(zhuang)置(zhi)的(de)(de)(de)(de)(de)(de)(de)(de)損壞(huai)，避免(mian)了(le)重(zhong)大(da)生(sheng)產事故地發生(sheng)。電子壓(ya)(ya)力(li)(li)(li)(li)開(kai)關(guan)(guan)(guan)是(shi)通(tong)過(guo)高(gao)精(jing)度儀表放(fang)(fang)大(da)器(qi)放(fang)(fang)大(da)壓(ya)(ya)力(li)(li)(li)(li)信(xin)號(hao)(hao)，通(tong)過(guo)高(gao)速MCU采(cai)集并處理(li)(li)數據，內置(zhi)精(jing)密傳感器(qi)進行(xing)(xing)補償，是(shi)檢測(ce)(ce)(ce)壓(ya)(ya)力(li)(li)(li)(li)、液位信(xin)號(hao)(hao)，實現壓(ya)(ya)力(li)(li)(li)(li)、液位監測(ce)(ce)(ce)和(he)控(kong)(kong)制的(de)(de)(de)(de)(de)(de)(de)(de)高(gao)精(jing)度設備(bei)。廣(guang)泛(fan)(fan)使用(yong)(yong)在(zai)化(hua)(hua)工(gong)、機(ji)械、水文、電力(li)(li)(li)(li)、環(huan)保等測(ce)(ce)(ce)量氣體(ti)、液體(ti)壓(ya)(ya)力(li)(li)(li)(li)的(de)(de)(de)(de)(de)(de)(de)(de)自動(dong)化(hua)(hua)系統中(zhong)。因為調節方便靈(ling)活(huo)，安裝(zhuang)(zhuang)簡(jian)單，可以(yi)替代大(da)部分(fen)使用(yong)(yong)液位開(kai)關(guan)(guan)(guan)的(de)(de)(de)(de)(de)(de)(de)(de)場(chang)合.壓(ya)(ya)力(li)(li)(li)(li)開(kai)關(guan)(guan)(guan)的(de)(de)(de)(de)(de)(de)(de)(de)工(gong)作(zuo)原理(li)(li)：是(shi)當(dang)(dang)系統內壓(ya)(ya)力(li)(li)(li)(li)高(gao)于或低于額(e)(e)定(ding)(ding)的(de)(de)(de)(de)(de)(de)(de)(de)安全壓(ya)(ya)力(li)(li)(li)(li)時(shi)(shi)，感應(ying)器(qi)內碟(die)片(pian)瞬時(shi)(shi)發生(sheng)移動(dong)，通(tong)過(guo)連(lian)接導桿推動(dong)開(kai)關(guan)(guan)(guan)接頭(tou)接通(tong)或斷(duan)開(kai)，當(dang)(dang)壓(ya)(ya)力(li)(li)(li)(li)降至或升(sheng)額(e)(e)定(ding)(ding)的(de)(de)(de)(de)(de)(de)(de)(de)恢復值時(shi)(shi)，碟(die)片(pian)瞬時(shi)(shi)復位，開(kai)關(guan)(guan)(guan)自動(dong)復位，或者簡(jian)單的(de)(de)(de)(de)(de)(de)(de)(de)說是(shi)當(dang)(dang)被測(ce)(ce)(ce)壓(ya)(ya)力(li)(li)(li)(li)超過(guo)額(e)(e)定(ding)(ding)值時(shi)(shi)，彈性元件(jian)(jian)的(de)(de)(de)(de)(de)(de)(de)(de)自由端(duan)產生(sheng)位移，直(zhi)接或經過(guo)比較后推動(dong)開(kai)關(guan)(guan)(guan)元件(jian)(jian)，改(gai)變開(kai)關(guan)(guan)(guan)元件(jian)(jian)的(de)(de)(de)(de)(de)(de)(de)(de)通(tong)斷(duan)狀(zhuang)態，達到控(kong)(kong)制被測(ce)(ce)(ce)壓(ya)(ya)力(li)(li)(li)(li)的(de)(de)(de)(de)(de)(de)(de)(de)目的(de)(de)(de)(de)(de)(de)(de)(de)。壓(ya)(ya)力(li)(li)(li)(li)開(kai)關(guan)(guan)(guan)采(cai)用(yong)(yong)的(de)(de)(de)(de)(de)(de)(de)(de)彈性元件(jian)(jian)有單圈彈簧管、膜片(pian)、膜盒及(ji)波紋管等。 

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    滑差表    SY96S

WEIGEL電流表 RW96MIN翊霈代理供應

WEIGEL電流表 RW96MIN翊霈代理供應