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)表(biao)(biao)(biao)(biao)(biao)是(shi)(shi)根據通電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)導(dao)體在磁(ci)(ci)場(chang)中受磁(ci)(ci)場(chang)力的(de)(de)(de)(de)(de)作(zuo)用(yong)(yong)而制(zhi)成的(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)表(biao)(biao)(biao)(biao)(biao)內部有(you)一(yi)(yi)永磁(ci)(ci)體，在極間產生磁(ci)(ci)場(chang)，在磁(ci)(ci)場(chang)中有(you)一(yi)(yi)個(ge)線(xian)(xian)圈，線(xian)(xian)圈兩(liang)端各有(you)一(yi)(yi)個(ge)游絲(si)彈(dan)(dan)簧(huang)，彈(dan)(dan)簧(huang)各連接(jie)(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)表(biao)(biao)(biao)(biao)(biao)的(de)(de)(de)(de)(de)一(yi)(yi)個(ge)接(jie)(jie)(jie)線(xian)(xian)柱，在彈(dan)(dan)簧(huang)與線(xian)(xian)圈間由(you)一(yi)(yi)個(ge)轉(zhuan)軸(zhou)(zhou)連接(jie)(jie)(jie)，在轉(zhuan)軸(zhou)(zhou)相對(dui)(dui)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)表(biao)(biao)(biao)(biao)(biao)的(de)(de)(de)(de)(de)前(qian)端，有(you)一(yi)(yi)個(ge)指針。當有(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)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)沿彈(dan)(dan)簧(huang)、轉(zhuan)軸(zhou)(zhou)通過(guo)磁(ci)(ci)場(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)切磁(ci)(ci)感線(xian)(xian)，所以(yi)受磁(ci)(ci)場(chang)力的(de)(de)(de)(de)(de)作(zuo)用(yong)(yong)，使線(xian)(xian)圈發生偏轉(zhuan)，帶動(dong)(dong)(dong)轉(zhuan)軸(zhou)(zhou)、指針偏轉(zhuan)。由(you)于(yu)磁(ci)(ci)場(chang)力的(de)(de)(de)(de)(de)大(da)小(xiao)隨(sui)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)增大(da)而增大(da)，所以(yi)就(jiu)可(ke)(ke)以(yi)通過(guo)指針的(de)(de)(de)(de)(de)偏轉(zhuan)程度來(lai)觀(guan)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)的(de)(de)(de)(de)(de)大(da)小(xiao)。一(yi)(yi)般可(ke)(ke)直(zhi)接(jie)(jie)(jie)測(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)微(wei)安(an)或毫安(an)數量(liang)(liang)(liang)(liang)(liang)(liang)級的(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)，為(wei)測(ce)(ce)(ce)更(geng)(geng)大(da)的(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)，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)表(biao)(biao)(biao)(biao)(biao)應有(you)并(bing)聯電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)器(qi)(qi)(qi)(qi)(qi)（又稱分(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)(qi)）。主要(yao)采用(yong)(yong)磁(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)(biao)(biao)的(de)(de)(de)(de)(de)測(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)機(ji)(ji)構(gou)(gou)。分(fen)(fen)流(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)(dian)(dian)阻(zu)(zu)值(zhi)(zhi)要(yao)使滿量(liang)(liang)(liang)(liang)(liang)(liang)程電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)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)表(biao)(biao)(biao)(biao)(biao)滿偏轉(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)表(biao)(biao)(biao)(biao)(biao)指示(shi)達到最大(da)。對(dui)(dui)于(yu)幾(ji)安(an)的(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)，可(ke)(ke)在電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)內設置分(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)(qi)。對(dui)(dui)于(yu)幾(ji)安(an)以(yi)上的(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)，則(ze)采用(yong)(yong)外附(fu)分(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)(qi)。大(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)分(fen)(fen)流(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)(dian)(dian)阻(zu)(zu)值(zhi)(zhi)很小(xiao)，為(wei)避(bi)免引(yin)(yin)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)和接(jie)(jie)(jie)觸電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)附(fu)加(jia)于(yu)分(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)(qi)而引(yin)(yin)起誤差，分(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)(qi)要(yao)制(zhi)成四(si)端形式(shi)(shi)，即有(you)兩(liang)個(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)端，兩(liang)個(ge)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)端。直(zhi)流(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)表(biao)(biao)(biao)(biao)(biao)主要(yao)采用(yong)(yong)磁(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)(dong)系(xi)(xi)測(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)機(ji)(ji)構(gou)(gou)(見(jian)機(ji)(ji)械式(shi)(shi)指示(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)(biao)(biao)測(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)機(ji)(ji)構(gou)(gou))，這(zhe)些測(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)機(ji)(ji)構(gou)(gou)的(de)(de)(de)(de)(de)測(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)基本量(liang)(liang)(liang)(liang)(liang)(liang)是(shi)(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)，可(ke)(ke)用(yong)(yong)來(lai)直(zhi)接(jie)(jie)(jie)測(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)。對(dui)(dui)于(yu)大(da)量(liang)(liang)(liang)(liang)(liang)(liang)值(zhi)(zhi)的(de)(de)(de)(de)(de)直(zhi)流(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)，磁(ci)(ci)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)系(xi)(xi)測(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)機(ji)(ji)構(gou)(gou)要(yao)使用(yong)(yong)分(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)(qi)，也(ye)就(jiu)是(shi)(shi)并(bing)聯電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)。它的(de)(de)(de)(de)(de)作(zuo)用(yong)(yong)是(shi)(shi)將大(da)部分(fen)(fen)被測(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)分(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)。對(dui)(dui)約10A以(yi)下的(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)多(duo)采用(yong)(yong)內附(fu)分(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)(qi);對(dui)(dui)更(geng)(geng)大(da)的(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)值(zhi)(zhi)，則(ze)使用(yong)(yong)分(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)(qi)。它采取四(si)端結構(gou)(gou)(圖(tu)a)，具有(you)兩(liang)個(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)端，兩(liang)個(ge)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)位端。交(jiao)(jiao)流(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)表(biao)(biao)(biao)(biao)(biao)可(ke)(ke)采用(yong)(yong)電(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)動(dong)(dong)(dong)系(xi)(xi)測(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)機(ji)(ji)構(gou)(gou)。為(wei)使磁(ci)(ci)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)系(xi)(xi)測(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)機(ji)(ji)構(gou)(gou)也(ye)能用(yong)(yong)于(yu)測(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)交(jiao)(jiao)流(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)，可(ke)(ke)利用(yong)(yong)整流(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(ou)等(deng)器(qi)(qi)(qi)(qi)(qi)件先將交(jiao)(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)轉(zhuan)換為(wei)直(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu);由(you)它們組合而成的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)(biao)(biao)分(fen)(fen)別稱為(wei)整流(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)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)(見(jian)整流(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)表(biao)(biao)(biao)(biao)(biao))、熱(re)電(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)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)。為(wei)擴大(da)量(liang)(liang)(liang)(liang)(liang)(liang)程以(yi)測(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)大(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)，整流(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)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)也(ye)采用(yong)(yong)分(fen)(fen)流(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)(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)表(biao)(biao)(biao)(biao)(biao)的(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)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)表(biao)(biao)(biao)(biao)(biao)則(ze)是(shi)(shi)加(jia)粗線(xian)(xian)圈導(dao)線(xian)(xian)、減少匝(za)數。對(dui)(dui)于(yu)更(geng)(geng)大(da)的(de)(de)(de)(de)(de)測(ce)(ce)(ce)量(liang)(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)值(zhi)(zhi)需配合電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)互感器(qi)(qi)(qi)(qi)(qi)使用(yong)(yong)。通常(chang)可(ke)(ke)利用(yong)(yong)分(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)(qi)和交(jiao)(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)數字電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)表(biao)(biao)(biao)(biao)(biao)構(gou)(gou)成交(jiao)(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)數字電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(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(liu)表    0-1A電流(liu)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