電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)是根據通(tong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)導(dao)體在(zai)磁(ci)(ci)(ci)(ci)場中受(shou)磁(ci)(ci)(ci)(ci)場力(li)的(de)(de)(de)(de)(de)作(zuo)用(yong)(yong)(yong)而(er)(er)制成(cheng)(cheng)(cheng)的(de)(de)(de)(de)(de)。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)內部有(you)(you)一(yi)永(yong)磁(ci)(ci)(ci)(ci)體，在(zai)極間產生(sheng)磁(ci)(ci)(ci)(ci)場，在(zai)磁(ci)(ci)(ci)(ci)場中有(you)(you)一(yi)個(ge)(ge)(ge)線(xian)(xian)(xian)圈(quan)(quan)，線(xian)(xian)(xian)圈(quan)(quan)兩(liang)端(duan)各有(you)(you)一(yi)個(ge)(ge)(ge)游絲彈(dan)簧(huang)，彈(dan)簧(huang)各連(lian)接(jie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(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)一(yi)個(ge)(ge)(ge)接(jie)線(xian)(xian)(xian)柱，在(zai)彈(dan)簧(huang)與線(xian)(xian)(xian)圈(quan)(quan)間由一(yi)個(ge)(ge)(ge)轉(zhuan)(zhuan)軸(zhou)連(lian)接(jie)，在(zai)轉(zhuan)(zhuan)軸(zhou)相對(dui)(dui)(dui)(dui)于(yu)(yu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(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)前端(duan)，有(you)(you)一(yi)個(ge)(ge)(ge)指(zhi)(zhi)針。當有(you)(you)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)通(tong)過(guo)時，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)沿(yan)彈(dan)簧(huang)、轉(zhuan)(zhuan)軸(zhou)通(tong)過(guo)磁(ci)(ci)(ci)(ci)場，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)切磁(ci)(ci)(ci)(ci)感(gan)線(xian)(xian)(xian)，所以受(shou)磁(ci)(ci)(ci)(ci)場力(li)的(de)(de)(de)(de)(de)作(zuo)用(yong)(yong)(yong)，使(shi)線(xian)(xian)(xian)圈(quan)(quan)發生(sheng)偏轉(zhuan)(zhuan)，帶動(dong)轉(zhuan)(zhuan)軸(zhou)、指(zhi)(zhi)針偏轉(zhuan)(zhuan)。由于(yu)(yu)磁(ci)(ci)(ci)(ci)場力(li)的(de)(de)(de)(de)(de)大(da)(da)小(xiao)(xiao)隨電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)增大(da)(da)而(er)(er)增大(da)(da)，所以就(jiu)可(ke)(ke)以通(tong)過(guo)指(zhi)(zhi)針的(de)(de)(de)(de)(de)偏轉(zhuan)(zhuan)程度來(lai)觀(guan)察電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)的(de)(de)(de)(de)(de)大(da)(da)小(xiao)(xiao)。一(yi)般可(ke)(ke)直接(jie)測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)微(wei)安(an)(an)或(huo)(huo)(huo)毫(hao)安(an)(an)數(shu)(shu)量(liang)(liang)(liang)(liang)(liang)級的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)，為測(ce)(ce)(ce)(ce)更大(da)(da)的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)應有(you)(you)并聯(lian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)器(qi)(qi)(qi)(qi)(qi)（又(you)稱分(fen)(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)(qi)）。主(zhu)要(yao)采(cai)用(yong)(yong)(yong)磁(ci)(ci)(ci)(ci)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)系電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)(biao)(biao)的(de)(de)(de)(de)(de)測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)機構。分(fen)(fen)(fen)(fen)(fen)流(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)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)值(zhi)要(yao)使(shi)滿量(liang)(liang)(liang)(liang)(liang)程電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)通(tong)過(guo)時，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)滿偏轉(zhuan)(zhuan)，即電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)指(zhi)(zhi)示達到最大(da)(da)。對(dui)(dui)(dui)(dui)于(yu)(yu)幾(ji)安(an)(an)的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(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)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)內設置分(fen)(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)(qi)。對(dui)(dui)(dui)(dui)于(yu)(yu)幾(ji)安(an)(an)以上的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)，則采(cai)用(yong)(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)器(qi)(qi)(qi)(qi)(qi)。大(da)(da)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(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)器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)值(zhi)很小(xiao)(xiao)，為避(bi)免引線(xian)(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)和接(jie)觸(chu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)附(fu)加于(yu)(yu)分(fen)(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)(qi)而(er)(er)引起誤差(cha)，分(fen)(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)(qi)要(yao)制成(cheng)(cheng)(cheng)四端(duan)形(xing)式，即有(you)(you)兩(liang)個(ge)(ge)(ge)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)端(duan)，兩(liang)個(ge)(ge)(ge)電(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)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)主(zhu)要(yao)采(cai)用(yong)(yong)(yong)磁(ci)(ci)(ci)(ci)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)系或(huo)(huo)(huo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)系測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)機構(見機械式指(zhi)(zhi)示電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)(biao)(biao)測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)機構)，這些測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)機構的(de)(de)(de)(de)(de)測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)基本量(liang)(liang)(liang)(liang)(liang)是電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)，可(ke)(ke)用(yong)(yong)(yong)來(lai)直接(jie)測(ce)(ce)(ce)(ce)小(xiao)(xiao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)。對(dui)(dui)(dui)(dui)于(yu)(yu)大(da)(da)量(liang)(liang)(liang)(liang)(liang)值(zhi)的(de)(de)(de)(de)(de)直流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(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)系測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)機構要(yao)使(shi)用(yong)(yong)(yong)分(fen)(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)(qi)，也就(jiu)是并聯(lian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)。它(ta)的(de)(de)(de)(de)(de)作(zuo)用(yong)(yong)(yong)是將大(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)流(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)。對(dui)(dui)(dui)(dui)約10A以下的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)多采(cai)用(yong)(yong)(yong)內附(fu)分(fen)(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)(qi);對(dui)(dui)(dui)(dui)更大(da)(da)的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)值(zhi)，則使(shi)用(yong)(yong)(yong)分(fen)(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)(qi)。它(ta)采(cai)取四端(duan)結構(圖a)，具有(you)(you)兩(liang)個(ge)(ge)(ge)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)端(duan)，兩(liang)個(ge)(ge)(ge)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)位端(duan)。交(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(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)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)系或(huo)(huo)(huo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)系測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)機構。為使(shi)磁(ci)(ci)(ci)(ci)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)系測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)機構也能用(yong)(yong)(yong)于(yu)(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)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)，可(ke)(ke)利用(yong)(yong)(yong)整(zheng)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)(qi)或(huo)(huo)(huo)熱電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)偶等器(qi)(qi)(qi)(qi)(qi)件先將交(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)轉(zhuan)(zhuan)換為直流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu);由它(ta)們組合而(er)(er)成(cheng)(cheng)(cheng)的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)(biao)(biao)分(fen)(fen)(fen)(fen)(fen)別(bie)稱為整(zheng)流(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)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)(見整(zheng)流(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)表(biao)(biao)(biao)(biao)(biao))、熱電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)式電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)。為擴大(da)(da)量(liang)(liang)(liang)(liang)(liang)程以測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)大(da)(da)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(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)(liu)(liu)(liu)式電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(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)(yong)分(fen)(fen)(fen)(fen)(fen)流(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)動(dong)系電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(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)做法同前;電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)系電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)則是加粗線(xian)(xian)(xian)圈(quan)(quan)導(dao)線(xian)(xian)(xian)、減少(shao)匝數(shu)(shu)。對(dui)(dui)(dui)(dui)于(yu)(yu)更大(da)(da)的(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)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)值(zhi)需配合電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(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)用(yong)(yong)(yong)。通(tong)常可(ke)(ke)利用(yong)(yong)(yong)分(fen)(fen)(fen)(fen)(fen)流(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)數(shu)(shu)字電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓表(biao)(biao)(biao)(biao)(biao)構成(cheng)(cheng)(cheng)交(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)數(shu)(shu)字電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)。

繼(ji)(ji)電(dian)(dian)(dian)(dian)器（英文名稱(cheng)：relay）是(shi)一(yi)種(zhong)電(dian)(dian)(dian)(dian)控(kong)(kong)(kong)(kong)制(zhi)器件(jian)，是(shi)當輸入量（激勵量）的(de)(de)變化(hua)達(da)到規(gui)定要(yao)求時，在(zai)電(dian)(dian)(dian)(dian)氣輸出電(dian)(dian)(dian)(dian)路中(zhong)(zhong)(zhong)使(shi)被控(kong)(kong)(kong)(kong)量發生預定的(de)(de)階躍變化(hua)的(de)(de)一(yi)種(zhong)電(dian)(dian)(dian)(dian)器。它具(ju)有控(kong)(kong)(kong)(kong)制(zhi)系統（又稱(cheng)輸入回路）和(he)被控(kong)(kong)(kong)(kong)制(zhi)系統（又稱(cheng)輸出回路）之間(jian)的(de)(de)互(hu)動(dong)(dong)關(guan)系。通常應(ying)用(yong)(yong)于(yu)自(zi)(zi)(zi)動(dong)(dong)化(hua)的(de)(de)控(kong)(kong)(kong)(kong)制(zhi)電(dian)(dian)(dian)(dian)路中(zhong)(zhong)(zhong)，它實際(ji)上(shang)是(shi)用(yong)(yong)小電(dian)(dian)(dian)(dian)流(liu)去(qu)控(kong)(kong)(kong)(kong)制(zhi)大電(dian)(dian)(dian)(dian)流(liu)運作(zuo)的(de)(de)一(yi)種(zhong)“自(zi)(zi)(zi)動(dong)(dong)開關(guan)”。故在(zai)電(dian)(dian)(dian)(dian)路中(zhong)(zhong)(zhong)起(qi)著(zhu)自(zi)(zi)(zi)動(dong)(dong)調節(jie)、安全保護、轉(zhuan)換電(dian)(dian)(dian)(dian)路等(deng)作(zuo)用(yong)(yong)。繼(ji)(ji)電(dian)(dian)(dian)(dian)器線(xian)圈(quan)在(zai)電(dian)(dian)(dian)(dian)路中(zhong)(zhong)(zhong)用(yong)(yong)一(yi)個(ge)長(chang)方框(kuang)符(fu)號(hao)(hao)(hao)表示，如(ru)果繼(ji)(ji)電(dian)(dian)(dian)(dian)器有兩個(ge)線(xian)圈(quan)，就(jiu)畫(hua)(hua)兩個(ge)并列的(de)(de)長(chang)方框(kuang)。同時在(zai)長(chang)方框(kuang)內或(huo)長(chang)方框(kuang)旁標上(shang)繼(ji)(ji)電(dian)(dian)(dian)(dian)器的(de)(de)文字(zi)符(fu)號(hao)(hao)(hao)“J”。繼(ji)(ji)電(dian)(dian)(dian)(dian)器的(de)(de)觸(chu)點有兩種(zhong)表示方法：一(yi)種(zhong)是(shi)把它們(men)直接(jie)畫(hua)(hua)在(zai)長(chang)方框(kuang)一(yi)側，這種(zhong)表示法較為直觀(guan)。另一(yi)種(zhong)是(shi)按照(zhao)電(dian)(dian)(dian)(dian)路連接(jie)的(de)(de)需要(yao)，把各個(ge)觸(chu)點分別(bie)畫(hua)(hua)到各自(zi)(zi)(zi)的(de)(de)控(kong)(kong)(kong)(kong)制(zhi)電(dian)(dian)(dian)(dian)路中(zhong)(zhong)(zhong)，通常在(zai)同一(yi)繼(ji)(ji)電(dian)(dian)(dian)(dian)器的(de)(de)觸(chu)點與線(xian)圈(quan)旁分別(bie)標注(zhu)上(shang)相(xiang)同的(de)(de)文字(zi)符(fu)號(hao)(hao)(hao)，并將觸(chu)點組編上(shang)號(hao)(hao)(hao)碼(ma)，以示區(qu)別(bie)。

WEIGEL    電器件    SHUNT 6000A/60MV/CLASS 0.5
WEIGEL    電流表    PQ96K 0-6000A
WEIGEL    電流表    BIEQ 72K 15min 1250/1A
WEIGEL    電流表    A1U2.2 INPUT：0-0.5A OUT：4-20mA 220V
WEIGEL    備件    SUS-01-Q-2/G-220DC
WEIGEL    備件    LSP144
WEIGEL    備件    DAS10-40P1R NR：943622-003
WEIGEL    備件    DA13-NA50/I12R-4
WEIGEL    電流表    EQ48 10A
WEIGEL    備件    EQ144K/1A/800A
WEIGEL    備件    EQ96K 0-1A =》0-1600A
WEIGEL    備件    DPA 10-31E10G
WEIGEL    電流表    EQ48 10A
WEIGEL    電流表    PQ96K
WEIGEL    電流表    RW96MIN/MAX 0-1A 230V AC
WEIGEL    電流表    PQ96K    +/-30VDC -+/-60mV/6;5kA
WEIGEL    壓力變送器    TYPE:V1U 2.2 SN:26057009
WEIGEL    電流表    A1U2.2 INPUT：0-0.5A OUT：4-20mA 220V
WEIGEL    功率因數表    PQ96K MESSB.4-20MA SKALA 0.5cap-1-0.5ind Power Factor Meter
WEIGEL    分流器    shunt-150mV-1000A-0.5
WEIGEL    備件    EQ144K/1A/80A
WEIGEL    功率因數變送器    DUW2.1
WEIGEL    電流變送器    電流變送器/A1U2.0
WEIGEL    位置指示器    SUS-01-Q-R/G-220DC
WEIGEL    表    P72PRS
WEIGEL    分流器    800.4418.S.C18.5KA.30mV
WEIGEL    電流表    EQ48 150/5A
WEIGEL    備件    FQ96/2
WEIGEL    電表    GQ96RS(3-15kV)   11.5 kv / 110 v
WEIGEL    電壓變送器    電壓變送器/V1U2.0
WEIGEL    備件    VUE2.2 0-500V 4-20MA  220V
WEIGEL    顯示器    DAS10-40P1R
WEIGEL    電流表    0-50mA電流表    50VCATIII
WEIGEL    電壓表    EQ72K 0~750V
WEIGEL    電器件    DMA14- 31A20R- S3
WEIGEL    分流器    SHUNT 60MV 800A， 137-9052
WEIGEL    滑差表    SY96S
WEIGEL    電流表    AMPQ72KDZS012 4-20mA Skala: 0-300A
WEIGEL    備件    PQ 72 INPUT-10V DC
WEIGEL    安裝盤    SHUNTISO.PLATE SMALL 100X60X4MM，870-92824
WEIGEL    電流表    PQ72K 0-100A 4-20mA
WEIGEL    備件    AU2.0 Input: 0...1A  Output: 0...20mA
WEIGEL    電流表    PQ96K
WEIGEL    電流表    EQ48K 15/5A
WEIGEL    電流表    LSP96K
WEIGEL    表    P72PRS
WEIGEL    電流表    PQ96K

WEIGEL 電流表EQ48 10A翊霈代理供應

WEIGEL 電流表EQ48 10A翊霈代理供應