電(dian)(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)(biao)是(shi)根據通(tong)(tong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)導(dao)體在磁(ci)(ci)(ci)場中受磁(ci)(ci)(ci)場力(li)的作用(yong)(yong)(yong)(yong)(yong)(yong)而制(zhi)(zhi)成(cheng)(cheng)的。電(dian)(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)(biao)內(nei)(nei)部(bu)(bu)有一(yi)(yi)(yi)永磁(ci)(ci)(ci)體，在極間產(chan)生磁(ci)(ci)(ci)場，在磁(ci)(ci)(ci)場中有一(yi)(yi)(yi)個(ge)(ge)線(xian)(xian)(xian)圈，線(xian)(xian)(xian)圈兩(liang)端各(ge)(ge)有一(yi)(yi)(yi)個(ge)(ge)游絲彈(dan)簧，彈(dan)簧各(ge)(ge)連接(jie)電(dian)(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)(biao)的一(yi)(yi)(yi)個(ge)(ge)接(jie)線(xian)(xian)(xian)柱(zhu)，在彈(dan)簧與線(xian)(xian)(xian)圈間由一(yi)(yi)(yi)個(ge)(ge)轉(zhuan)(zhuan)軸(zhou)(zhou)連接(jie)，在轉(zhuan)(zhuan)軸(zhou)(zhou)相對(dui)(dui)(dui)于(yu)(yu)電(dian)(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)(biao)的前(qian)端，有一(yi)(yi)(yi)個(ge)(ge)指針(zhen)。當有電(dian)(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)過時(shi)，電(dian)(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(dan)簧、轉(zhuan)(zhuan)軸(zhou)(zhou)通(tong)(tong)過磁(ci)(ci)(ci)場，電(dian)(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)感(gan)線(xian)(xian)(xian)，所以受磁(ci)(ci)(ci)場力(li)的作用(yong)(yong)(yong)(yong)(yong)(yong)，使(shi)(shi)線(xian)(xian)(xian)圈發生偏轉(zhuan)(zhuan)，帶動轉(zhuan)(zhuan)軸(zhou)(zhou)、指針(zhen)偏轉(zhuan)(zhuan)。由于(yu)(yu)磁(ci)(ci)(ci)場力(li)的大(da)(da)(da)(da)小隨電(dian)(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)而增大(da)(da)(da)(da)，所以就可(ke)(ke)(ke)以通(tong)(tong)過指針(zhen)的偏轉(zhuan)(zhuan)程度來(lai)觀察電(dian)(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)的大(da)(da)(da)(da)小。一(yi)(yi)(yi)般(ban)可(ke)(ke)(ke)直接(jie)測(ce)(ce)(ce)(ce)量(liang)(liang)微安或(huo)毫(hao)安數(shu)(shu)量(liang)(liang)級(ji)的電(dian)(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)(ce)(ce)更大(da)(da)(da)(da)的電(dian)(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)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)應有并聯(lian)電(dian)(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)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)）。主(zhu)要(yao)(yao)采(cai)用(yong)(yong)(yong)(yong)(yong)(yong)磁(ci)(ci)(ci)電(dian)(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)(dian)表(biao)(biao)(biao)的測(ce)(ce)(ce)(ce)量(liang)(liang)機構(gou)(gou)。分(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)的電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻值要(yao)(yao)使(shi)(shi)滿(man)量(liang)(liang)程電(dian)(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)過時(shi)，電(dian)(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)(biao)滿(man)偏轉(zhuan)(zhuan)，即電(dian)(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)(biao)指示達到最大(da)(da)(da)(da)。對(dui)(dui)(dui)于(yu)(yu)幾(ji)安的電(dian)(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)(ke)在電(dian)(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)(biao)內(nei)(nei)設(she)置分(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)。對(dui)(dui)(dui)于(yu)(yu)幾(ji)安以上的電(dian)(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)，則采(cai)用(yong)(yong)(yong)(yong)(yong)(yong)外(wai)附分(fen)(fen)(fen)(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)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)分(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)的電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻值很小，為(wei)避免引線(xian)(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻和(he)接(jie)觸電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻附加(jia)(jia)于(yu)(yu)分(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)而引起(qi)誤(wu)差(cha)，分(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)要(yao)(yao)制(zhi)(zhi)成(cheng)(cheng)四端形式(shi)(shi)(shi)，即有兩(liang)個(ge)(ge)電(dian)(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，兩(liang)個(ge)(ge)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓端。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)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)主(zhu)要(yao)(yao)采(cai)用(yong)(yong)(yong)(yong)(yong)(yong)磁(ci)(ci)(ci)電(dian)(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)(dian)動系(xi)測(ce)(ce)(ce)(ce)量(liang)(liang)機構(gou)(gou)(見機械式(shi)(shi)(shi)指示電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)測(ce)(ce)(ce)(ce)量(liang)(liang)機構(gou)(gou))，這些測(ce)(ce)(ce)(ce)量(liang)(liang)機構(gou)(gou)的測(ce)(ce)(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)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)，可(ke)(ke)(ke)用(yong)(yong)(yong)(yong)(yong)(yong)來(lai)直接(jie)測(ce)(ce)(ce)(ce)小電(dian)(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)(dui)于(yu)(yu)大(da)(da)(da)(da)量(liang)(liang)值的直流(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)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)，磁(ci)(ci)(ci)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)系(xi)測(ce)(ce)(ce)(ce)量(liang)(liang)機構(gou)(gou)要(yao)(yao)使(shi)(shi)用(yong)(yong)(yong)(yong)(yong)(yong)分(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)，也(ye)就是(shi)并聯(lian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻。它的作用(yong)(yong)(yong)(yong)(yong)(yong)是(shi)將大(da)(da)(da)(da)部(bu)(bu)分(fen)(fen)(fen)(fen)被測(ce)(ce)(ce)(ce)電(dian)(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)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)。對(dui)(dui)(dui)約10A以下(xia)的電(dian)(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)用(yong)(yong)(yong)(yong)(yong)(yong)內(nei)(nei)附分(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi);對(dui)(dui)(dui)更大(da)(da)(da)(da)的電(dian)(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，則使(shi)(shi)用(yong)(yong)(yong)(yong)(yong)(yong)分(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)。它采(cai)取(qu)四端結構(gou)(gou)(圖a)，具有兩(liang)個(ge)(ge)電(dian)(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，兩(liang)個(ge)(ge)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)位端。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)(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)(ke)(ke)采(cai)用(yong)(yong)(yong)(yong)(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(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)(dian)動系(xi)測(ce)(ce)(ce)(ce)量(liang)(liang)機構(gou)(gou)。為(wei)使(shi)(shi)磁(ci)(ci)(ci)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)系(xi)測(ce)(ce)(ce)(ce)量(liang)(liang)機構(gou)(gou)也(ye)能用(yong)(yong)(yong)(yong)(yong)(yong)于(yu)(yu)測(ce)(ce)(ce)(ce)量(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)(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)(ke)利用(yong)(yong)(yong)(yong)(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)(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)轉(zhuan)(zhuan)換為(wei)直流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu);由它們組合而成(cheng)(cheng)的電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)分(fen)(fen)(fen)(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)(shi)電(dian)(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)(biao)(見整流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)式(shi)(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao))、熱電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)式(shi)(shi)(shi)電(dian)(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)(biao)。為(wei)擴大(da)(da)(da)(da)量(liang)(liang)程以測(ce)(ce)(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)(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)(shi)電(dian)(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)(biao)也(ye)采(cai)用(yong)(yong)(yong)(yong)(yong)(yong)分(fen)(fen)(fen)(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)(dian)動系(xi)電(dian)(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)(biao)的做法同前(qian);電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)系(xi)電(dian)(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)(biao)則是(shi)加(jia)(jia)粗線(xian)(xian)(xian)圈導(dao)線(xian)(xian)(xian)、減少匝數(shu)(shu)。對(dui)(dui)(dui)于(yu)(yu)更大(da)(da)(da)(da)的測(ce)(ce)(ce)(ce)量(liang)(liang)電(dian)(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)值需配(pei)合電(dian)(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)互感(gan)器(qi)(qi)使(shi)(shi)用(yong)(yong)(yong)(yong)(yong)(yong)。通(tong)(tong)常可(ke)(ke)(ke)利用(yong)(yong)(yong)(yong)(yong)(yong)分(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)和(he)交(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)數(shu)(shu)字(zi)(zi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓表(biao)(biao)(biao)構(gou)(gou)成(cheng)(cheng)交(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)數(shu)(shu)字(zi)(zi)電(dian)(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)(biao)。

電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)器(qi)(qi)，通常簡(jian)稱其容(rong)(rong)(rong)(rong)納(na)電(dian)(dian)(dian)(dian)(dian)(dian)荷(he)(he)的本領為電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)，用字母C表示。定義1：電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)器(qi)(qi)，顧名思(si)義，是(shi)(shi)‘裝(zhuang)電(dian)(dian)(dian)(dian)(dian)(dian)的容(rong)(rong)(rong)(rong)器(qi)(qi)’，是(shi)(shi)一(yi)種容(rong)(rong)(rong)(rong)納(na)電(dian)(dian)(dian)(dian)(dian)(dian)荷(he)(he)的器(qi)(qi)件(jian)。英文名稱：capacitor。電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)器(qi)(qi)是(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)子設備中(zhong)大量(liang)使用的電(dian)(dian)(dian)(dian)(dian)(dian)子元件(jian)之一(yi)，廣泛應用于電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)中(zhong)的隔(ge)直通交，耦合(he)，旁(pang)路(lu)，濾波，調諧回路(lu)， 能量(liang)轉換，控制(zhi)等方面(mian)。定義2：電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)器(qi)(qi)，任(ren)何兩(liang)個(ge)彼此(ci)絕(jue)(jue)緣(yuan)(yuan)(yuan)且(qie)相(xiang)隔(ge)很近(jin)的導體（包括導線）間(jian)都(dou)(dou)構(gou)成(cheng)一(yi)個(ge)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)器(qi)(qi)。簡(jian)單的電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)器(qi)(qi)是(shi)(shi)由(you)(you)兩(liang)端(duan)的極(ji)(ji)板(ban)和中(zhong)間(jian)的絕(jue)(jue)緣(yuan)(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)(dian)介質(zhi)（包括空氣）構(gou)成(cheng)的。通電(dian)(dian)(dian)(dian)(dian)(dian)后(hou)，極(ji)(ji)板(ban)帶(dai)電(dian)(dian)(dian)(dian)(dian)(dian)，形成(cheng)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)（電(dian)(dian)(dian)(dian)(dian)(dian)勢差(cha)），但是(shi)(shi)由(you)(you)于中(zhong)間(jian)的絕(jue)(jue)緣(yuan)(yuan)(yuan)物(wu)質(zhi)，所(suo)(suo)以整個(ge)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)器(qi)(qi)是(shi)(shi)不(bu)導電(dian)(dian)(dian)(dian)(dian)(dian)的。不(bu)過(guo)，這樣的情況是(shi)(shi)在沒(mei)有(you)超(chao)過(guo)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)器(qi)(qi)的臨(lin)界電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)（擊(ji)(ji)(ji)穿電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)）的前提條件(jian)下的。我(wo)們知道，任(ren)何物(wu)質(zhi)都(dou)(dou)是(shi)(shi)相(xiang)對絕(jue)(jue)緣(yuan)(yuan)(yuan)的，當(dang)物(wu)質(zhi)兩(liang)端(duan)的電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)加大到一(yi)定程度(du)后(hou)，物(wu)質(zhi)是(shi)(shi)都(dou)(dou)可(ke)以導電(dian)(dian)(dian)(dian)(dian)(dian)的，我(wo)們稱這個(ge)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)叫擊(ji)(ji)(ji)穿電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)。電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)也不(bu)例外，電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)被(bei)擊(ji)(ji)(ji)穿后(hou)，就不(bu)是(shi)(shi)絕(jue)(jue)緣(yuan)(yuan)(yuan)體了。當(dang)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)器(qi)(qi)接(jie)通電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)以后(hou),在電(dian)(dian)(dian)(dian)(dian)(dian)場力的作用下,與(yu)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)正極(ji)(ji)相(xiang)接(jie)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)器(qi)(qi)極(ji)(ji)板(ban)的 自由(you)(you)電(dian)(dian)(dian)(dian)(dian)(dian)子將經過(guo)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)移到與(yu)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)負極(ji)(ji)相(xiang)接(jie)的極(ji)(ji)板(ban)下, 正極(ji)(ji)由(you)(you)于失去負電(dian)(dian)(dian)(dian)(dian)(dian)荷(he)(he)而帶(dai)正電(dian)(dian)(dian)(dian)(dian)(dian), 負 極(ji)(ji)由(you)(you)于獲得負電(dian)(dian)(dian)(dian)(dian)(dian)荷(he)(he)而帶(dai)負電(dian)(dian)(dian)(dian)(dian)(dian),正,負極(ji)(ji)板(ban)所(suo)(suo)帶(dai)電(dian)(dian)(dian)(dian)(dian)(dian)荷(he)(he)大小相(xiang)等,符號相(xiang)反.

WEIGEL    功率轉換器    V1U2.2 0..120V(48..62hz) 4-20mA
WEIGEL    豎式指針表    MP48X96K(4~20mA 帶零位調整） 96mm×48mm豎式指針表
WEIGEL    電流表    LSP96K
WEIGEL    表    P72PRS
WEIGEL    分流器    4000A/60MV
WEIGEL    備件    PQ 96
WEIGEL    備件    AU2.0 10 5 H0
WEIGEL    表    P72PRS
WEIGEL    備件    WQ96/2S
WEIGEL    備件    PQ 96
WEIGEL    滑差表    SY96S 100V 50HZ WITH FULLSIZED REAR COVER
WEIGEL    Analog Meter    LSP96
WEIGEL    顯示器    DAS10-40P1R
WEIGEL    電器件    SHUNT 6000A/60MV/CLASS 0.5
WEIGEL    備件    DPA 10-31E10G
WEIGEL    電流表    Q96K5A(10)400/5A
WEIGEL    備件    AU2.0  0-5A/0-20mA
WEIGEL    電流表    Q96K5A(10)400/5A
WEIGEL    分流器    SHUNT 18000A/200MV/CLASS 0.5
WEIGEL    變送器    VIU2.2 輸入0-115V 48-62HZ 輸出4-20MA 工作電源Vh195-293v
WEIGEL    備件    VUE2.2 0-500V 4-20MA  220V
WEIGEL    備件    A1U2.2 13 4 0.5 H1
WEIGEL    儀表    PQ96 40-0-40V
WEIGEL    安培表    PQ72K 0-20MA
WEIGEL    電表    GQ96RS(3-15kV)   11.5 kv / 110 v
WEIGEL    備件    EQ144K/1A/150A
WEIGEL    備件    BIEQ 72K 15min 3000/1A
WEIGEL    電流表    PQ72K 0-100A 4-20mA
WEIGEL    電流表    PQ96K
WEIGEL    分流器    FLQ1017B2-300A
WEIGEL    變送器    VIU2.2 輸入0-115V 48-62HZ 輸出4-20MA 工作電源Vh195-293v
WEIGEL    備件    EQ96K   0-500V
WEIGEL    備件    DAS10-40PQR SR.943622-003
WEIGEL    備件    674.110.00  EQ48K Sonder-MB: 0-250/500 mA  Skala: 0-250/500 mA
WEIGEL    備件    EQ72K 100/5A 600V
WEIGEL    電流表    EQ72K  50/100/5A
WEIGEL    電流表    EQ96-X            CT   80/5A    scale 0—80A  2倍過載  無紅線
WEIGEL    電流表    PQ96K 0-10V:=0-150A
WEIGEL    電壓表    EQ72 0~500V
WEIGEL    備件    114-50HZ-230V DRAWING NO:0130-S SN:294033
WEIGEL    備件    LSP96K
WEIGEL    備件    PQ 72 INPUT-10V DC
WEIGEL    電壓表    PQ96K-+/-30VDC
WEIGEL    電流表    EQ72K 150A 0-100% 帶互感器
WEIGEL    電流表    RW96MIN/MAX 0-1A 230V AC
WEIGEL    電壓表    PQ96K 0-10V 0-120% POTI (0-10VDC/1mA + scale 0-120% w.pot )
WEIGEL    備件    PQ48K CA
WEIGEL    電流表    PQ96K 10V 0-8000

WEIGEL電流(liu)表EQ72K  50/100/5A翊霈代理供應(ying)

WEIGEL電(dian)流表EQ72K  50/100/5A翊霈代理供應