電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)是根據通(tong)(tong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)導體(ti)在(zai)磁(ci)(ci)(ci)(ci)場(chang)(chang)中受(shou)磁(ci)(ci)(ci)(ci)場(chang)(chang)力的(de)(de)(de)(de)作(zuo)用(yong)(yong)而制成(cheng)的(de)(de)(de)(de)。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)內(nei)部(bu)有(you)一永磁(ci)(ci)(ci)(ci)體(ti)，在(zai)極間產(chan)生磁(ci)(ci)(ci)(ci)場(chang)(chang)，在(zai)磁(ci)(ci)(ci)(ci)場(chang)(chang)中有(you)一個(ge)(ge)線圈(quan)，線圈(quan)兩(liang)端(duan)(duan)各有(you)一個(ge)(ge)游絲(si)彈簧，彈簧各連接電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)的(de)(de)(de)(de)一個(ge)(ge)接線柱，在(zai)彈簧與線圈(quan)間由一個(ge)(ge)轉(zhuan)(zhuan)(zhuan)軸連接，在(zai)轉(zhuan)(zhuan)(zhuan)軸相(xiang)對(dui)(dui)于(yu)(yu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)的(de)(de)(de)(de)前端(duan)(duan)，有(you)一個(ge)(ge)指(zhi)針(zhen)。當有(you)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)通(tong)(tong)過(guo)時，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)沿(yan)彈簧、轉(zhuan)(zhuan)(zhuan)軸通(tong)(tong)過(guo)磁(ci)(ci)(ci)(ci)場(chang)(chang)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)切磁(ci)(ci)(ci)(ci)感(gan)線，所以(yi)受(shou)磁(ci)(ci)(ci)(ci)場(chang)(chang)力的(de)(de)(de)(de)作(zuo)用(yong)(yong)，使(shi)線圈(quan)發生偏(pian)(pian)轉(zhuan)(zhuan)(zhuan)，帶動(dong)轉(zhuan)(zhuan)(zhuan)軸、指(zhi)針(zhen)偏(pian)(pian)轉(zhuan)(zhuan)(zhuan)。由于(yu)(yu)磁(ci)(ci)(ci)(ci)場(chang)(chang)力的(de)(de)(de)(de)大(da)(da)(da)(da)(da)(da)小(xiao)隨電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)增大(da)(da)(da)(da)(da)(da)而增大(da)(da)(da)(da)(da)(da)，所以(yi)就可(ke)以(yi)通(tong)(tong)過(guo)指(zhi)針(zhen)的(de)(de)(de)(de)偏(pian)(pian)轉(zhuan)(zhuan)(zhuan)程度來觀察電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)的(de)(de)(de)(de)大(da)(da)(da)(da)(da)(da)小(xiao)。一般可(ke)直(zhi)(zhi)接測(ce)量(liang)(liang)微安或(huo)(huo)毫安數(shu)量(liang)(liang)級的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)，為(wei)(wei)(wei)測(ce)更(geng)大(da)(da)(da)(da)(da)(da)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)應(ying)有(you)并聯電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)器(qi)(qi)(qi)（又(you)稱分(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)）。主要采(cai)(cai)(cai)用(yong)(yong)磁(ci)(ci)(ci)(ci)電(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)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)的(de)(de)(de)(de)測(ce)量(liang)(liang)機(ji)構(gou)。分(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)值要使(shi)滿(man)量(liang)(liang)程電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)通(tong)(tong)過(guo)時，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)滿(man)偏(pian)(pian)轉(zhuan)(zhuan)(zhuan)，即電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)指(zhi)示達到最大(da)(da)(da)(da)(da)(da)。對(dui)(dui)于(yu)(yu)幾(ji)(ji)安的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)，可(ke)在(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)內(nei)設置分(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)。對(dui)(dui)于(yu)(yu)幾(ji)(ji)安以(yi)上的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)，則采(cai)(cai)(cai)用(yong)(yong)外附分(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)。大(da)(da)(da)(da)(da)(da)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(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)器(qi)(qi)(qi)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)值很小(xiao)，為(wei)(wei)(wei)避免引線電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)和接觸電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)附加于(yu)(yu)分(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)而引起誤差，分(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)要制成(cheng)四端(duan)(duan)形式，即有(you)兩(liang)個(ge)(ge)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)端(duan)(duan)，兩(liang)個(ge)(ge)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)端(duan)(duan)。直(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)主要采(cai)(cai)(cai)用(yong)(yong)磁(ci)(ci)(ci)(ci)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)系(xi)或(huo)(huo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)系(xi)測(ce)量(liang)(liang)機(ji)構(gou)(見機(ji)械式指(zhi)示電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)測(ce)量(liang)(liang)機(ji)構(gou))，這些測(ce)量(liang)(liang)機(ji)構(gou)的(de)(de)(de)(de)測(ce)量(liang)(liang)基本量(liang)(liang)是電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)，可(ke)用(yong)(yong)來直(zhi)(zhi)接測(ce)小(xiao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)。對(dui)(dui)于(yu)(yu)大(da)(da)(da)(da)(da)(da)量(liang)(liang)值的(de)(de)(de)(de)直(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(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)系(xi)測(ce)量(liang)(liang)機(ji)構(gou)要使(shi)用(yong)(yong)分(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)，也(ye)就是并聯電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)。它的(de)(de)(de)(de)作(zuo)用(yong)(yong)是將(jiang)(jiang)大(da)(da)(da)(da)(da)(da)部(bu)分(fen)(fen)(fen)(fen)被測(ce)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(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)。對(dui)(dui)約10A以(yi)下的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)多(duo)采(cai)(cai)(cai)用(yong)(yong)內(nei)附分(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi);對(dui)(dui)更(geng)大(da)(da)(da)(da)(da)(da)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)值，則使(shi)用(yong)(yong)分(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)。它采(cai)(cai)(cai)取(qu)四端(duan)(duan)結構(gou)(圖a)，具有(you)兩(liang)個(ge)(ge)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)端(duan)(duan)，兩(liang)個(ge)(ge)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)位端(duan)(duan)。交流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)可(ke)采(cai)(cai)(cai)用(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)系(xi)或(huo)(huo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)系(xi)測(ce)量(liang)(liang)機(ji)構(gou)。為(wei)(wei)(wei)使(shi)磁(ci)(ci)(ci)(ci)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)系(xi)測(ce)量(liang)(liang)機(ji)構(gou)也(ye)能用(yong)(yong)于(yu)(yu)測(ce)量(liang)(liang)交流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(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)器(qi)(qi)(qi)或(huo)(huo)熱(re)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)偶等器(qi)(qi)(qi)件先將(jiang)(jiang)交流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)轉(zhuan)(zhuan)(zhuan)換為(wei)(wei)(wei)直(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu);由它們組合而成(cheng)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)分(fen)(fen)(fen)(fen)別稱為(wei)(wei)(wei)整流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)式電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)(見整流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)式電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao))、熱(re)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)式電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)。為(wei)(wei)(wei)擴大(da)(da)(da)(da)(da)(da)量(liang)(liang)程以(yi)測(ce)量(liang)(liang)大(da)(da)(da)(da)(da)(da)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)，整流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)式電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)也(ye)采(cai)(cai)(cai)用(yong)(yong)分(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi);電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)系(xi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)的(de)(de)(de)(de)做(zuo)法(fa)同前;電(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)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)則是加粗線圈(quan)導線、減(jian)少匝數(shu)。對(dui)(dui)于(yu)(yu)更(geng)大(da)(da)(da)(da)(da)(da)的(de)(de)(de)(de)測(ce)量(liang)(liang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)值需(xu)配(pei)合電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)互感(gan)器(qi)(qi)(qi)使(shi)用(yong)(yong)。通(tong)(tong)常可(ke)利用(yong)(yong)分(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)和交流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)數(shu)字(zi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)構(gou)成(cheng)交流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)數(shu)字(zi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)。

截(jie)(jie)止(zhi)(zhi)閥(fa)(fa)(fa)(fa)(fa)又稱(cheng)截(jie)(jie)門(men)(men)(men)(men)閥(fa)(fa)(fa)(fa)(fa)，屬(shu)于(yu)強(qiang)制(zhi)密封(feng)式(shi)閥(fa)(fa)(fa)(fa)(fa)門(men)(men)(men)(men)，所以(yi)在(zai)閥(fa)(fa)(fa)(fa)(fa)門(men)(men)(men)(men)關(guan)閉時(shi)(shi)，必須向閥(fa)(fa)(fa)(fa)(fa)瓣(ban)(ban)施加(jia)壓力(li)(li)，以(yi)強(qiang)制(zhi)密封(feng)面(mian)不泄漏。當(dang)介(jie)質(zhi)(zhi)由(you)閥(fa)(fa)(fa)(fa)(fa)瓣(ban)(ban)下(xia)方(fang)進(jin)入閥(fa)(fa)(fa)(fa)(fa)門(men)(men)(men)(men)時(shi)(shi)，操(cao)作力(li)(li)所需要克服的(de)(de)(de)(de)(de)(de)(de)阻力(li)(li)，是閥(fa)(fa)(fa)(fa)(fa)桿(gan)(gan)和(he)填(tian)料的(de)(de)(de)(de)(de)(de)(de)摩擦(ca)力(li)(li)與由(you)介(jie)質(zhi)(zhi)的(de)(de)(de)(de)(de)(de)(de)壓力(li)(li)所產生的(de)(de)(de)(de)(de)(de)(de)推力(li)(li)，關(guan)閥(fa)(fa)(fa)(fa)(fa)門(men)(men)(men)(men)的(de)(de)(de)(de)(de)(de)(de)力(li)(li)比開(kai)閥(fa)(fa)(fa)(fa)(fa)門(men)(men)(men)(men)的(de)(de)(de)(de)(de)(de)(de)力(li)(li)大(da)，所以(yi)閥(fa)(fa)(fa)(fa)(fa)桿(gan)(gan)的(de)(de)(de)(de)(de)(de)(de)直徑(jing)(jing)要大(da)，否則會發(fa)生閥(fa)(fa)(fa)(fa)(fa)桿(gan)(gan)頂彎的(de)(de)(de)(de)(de)(de)(de)故障。按連(lian)接(jie)方(fang)式(shi)分為(wei)三(san)種(zhong)：法蘭連(lian)接(jie)、絲(si)扣(kou)連(lian)接(jie)、焊接(jie)連(lian)接(jie)。從(cong)自密封(feng)的(de)(de)(de)(de)(de)(de)(de)閥(fa)(fa)(fa)(fa)(fa)門(men)(men)(men)(men)出現后，截(jie)(jie)止(zhi)(zhi)閥(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)(de)(de)(de)(de)介(jie)質(zhi)(zhi)流向就(jiu)改由(you)閥(fa)(fa)(fa)(fa)(fa)瓣(ban)(ban)上方(fang)進(jin)入閥(fa)(fa)(fa)(fa)(fa)腔，這時(shi)(shi)在(zai)介(jie)質(zhi)(zhi)壓力(li)(li)作用下(xia)，關(guan)閥(fa)(fa)(fa)(fa)(fa)門(men)(men)(men)(men)的(de)(de)(de)(de)(de)(de)(de)力(li)(li)小(xiao)，而開(kai)閥(fa)(fa)(fa)(fa)(fa)門(men)(men)(men)(men)的(de)(de)(de)(de)(de)(de)(de)力(li)(li)大(da)，閥(fa)(fa)(fa)(fa)(fa)桿(gan)(gan)的(de)(de)(de)(de)(de)(de)(de)直徑(jing)(jing)可以(yi)相(xiang)應地(di)減少(shao)。同時(shi)(shi)，在(zai)介(jie)質(zhi)(zhi)作用下(xia)，這種(zhong)形(xing)(xing)式(shi)的(de)(de)(de)(de)(de)(de)(de)閥(fa)(fa)(fa)(fa)(fa)門(men)(men)(men)(men)也較嚴密。我國閥(fa)(fa)(fa)(fa)(fa)門(men)(men)(men)(men)“三(san)化(hua)給”曾規定(ding)(ding)，截(jie)(jie)止(zhi)(zhi)閥(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)(de)(de)(de)(de)流向，一(yi)律采(cai)用自上而下(xia)。截(jie)(jie)止(zhi)(zhi)閥(fa)(fa)(fa)(fa)(fa)開(kai)啟(qi)(qi)時(shi)(shi)，閥(fa)(fa)(fa)(fa)(fa)瓣(ban)(ban)的(de)(de)(de)(de)(de)(de)(de)開(kai)啟(qi)(qi)高度，為(wei)公稱(cheng)直徑(jing)(jing)的(de)(de)(de)(de)(de)(de)(de)25%～30%時(shi)(shi).流量已達到最大(da)，表示閥(fa)(fa)(fa)(fa)(fa)門(men)(men)(men)(men)已達全開(kai)位(wei)置。所以(yi)截(jie)(jie)止(zhi)(zhi)閥(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)(de)(de)(de)(de)全開(kai)位(wei)置，應由(you)閥(fa)(fa)(fa)(fa)(fa)瓣(ban)(ban)的(de)(de)(de)(de)(de)(de)(de)行(xing)程(cheng)來決定(ding)(ding)。截(jie)(jie)止(zhi)(zhi)閥(fa)(fa)(fa)(fa)(fa)（stop valve,Globe Valve）的(de)(de)(de)(de)(de)(de)(de)啟(qi)(qi)閉件是塞形(xing)(xing)的(de)(de)(de)(de)(de)(de)(de)閥(fa)(fa)(fa)(fa)(fa)瓣(ban)(ban)，密封(feng)上面(mian)呈平面(mian)或(huo)海錐面(mian)，閥(fa)(fa)(fa)(fa)(fa)瓣(ban)(ban)沿閥(fa)(fa)(fa)(fa)(fa)座(zuo)的(de)(de)(de)(de)(de)(de)(de)中(zhong)心線(xian)作直線(xian)運動。閥(fa)(fa)(fa)(fa)(fa)桿(gan)(gan)的(de)(de)(de)(de)(de)(de)(de)運動形(xing)(xing)式(shi)，（通用名稱(cheng)：暗桿(gan)(gan)），也有升(sheng)降(jiang)旋轉桿(gan)(gan)式(shi)可用于(yu)控制(zhi)空(kong)氣、水、蒸汽、各種(zhong)腐蝕性介(jie)質(zhi)(zhi)、泥(ni)漿、油品、液態金(jin)屬(shu)和(he)放射(she)性介(jie)質(zhi)(zhi)等各種(zhong)類型流體的(de)(de)(de)(de)(de)(de)(de)流動。因此(ci)，這種(zhong)類型的(de)(de)(de)(de)(de)(de)(de)截(jie)(jie)流截(jie)(jie)止(zhi)(zhi)閥(fa)(fa)(fa)(fa)(fa)閥(fa)(fa)(fa)(fa)(fa)門(men)(men)(men)(men)非常(chang)適(shi)合作為(wei)切(qie)斷(duan)或(huo)調(diao)節以(yi)及節流用。由(you)于(yu)該類閥(fa)(fa)(fa)(fa)(fa)門(men)(men)(men)(men)的(de)(de)(de)(de)(de)(de)(de)閥(fa)(fa)(fa)(fa)(fa)桿(gan)(gan)開(kai)啟(qi)(qi)或(huo)關(guan)閉行(xing)程(cheng)相(xiang)對較短，而且具有非常(chang)可靠(kao)的(de)(de)(de)(de)(de)(de)(de)切(qie)斷(duan)功能，又由(you)于(yu)閥(fa)(fa)(fa)(fa)(fa)座(zuo)通口的(de)(de)(de)(de)(de)(de)(de)變化(hua)與閥(fa)(fa)(fa)(fa)(fa)瓣(ban)(ban)的(de)(de)(de)(de)(de)(de)(de)行(xing)程(cheng)成(cheng)正比例關(guan)系，非常(chang)適(shi)合于(yu)對流量的(de)(de)(de)(de)(de)(de)(de)調(diao)節。

WEIGEL    續電器    RP96
WEIGEL    分流器    800.7339.S.1KA.60mV
WEIGEL    傳感器    PQ96K 40-0-40mv
WEIGEL    備件    WGL.RN.060MV/0300A_05_B  Shunt resistance 60 mV / 300 A  Class 0.5 to DIN 43 703  type B  60 mV / 300 A
WEIGEL    功率因數變送器    DUW2.1
WEIGEL    備件    VUE2.2 0-500V 4-20MA  220V
WEIGEL    電器件    SHUNT 6000A/60MV/CLASS 0.5
WEIGEL    備件    EQ144K/1A/300A
WEIGEL    備件    WGL.PQ96K.0-10V.1000A_DC Analog meters with moving-coil movement  measuring range 0…10 V DC scale 0…1000 A linear  accuracy class 1.5
WEIGEL    備件    WEG.PQ48K 0-40microA analog meter with moving-coil movement 90°
WEIGEL    電流表    EQ48K 15/5A
WEIGEL    備件    DPA 10-31E10G
WEIGEL    電流表    PQ96K 4-20mA:=0-250V
WEIGEL    備件    SHUNT 6000A/60MV/CLASS 0.5
WEIGEL    傳感器    PQ96K 40-0-40mv
WEIGEL    備件    EQ96K   0-500V
WEIGEL    備件    EQ72K 50/5A 600V
WEIGEL    備件    WGL.PQ96K.0-10V.0500V_DC Analog meters with moving-coil movement measuring range 0…10 V DC  scale 0…500 V linear  accuracy class 1.5 according to DIN EN 60 051 PQ 96 K
WEIGEL    電壓表    PQ96K 0-10V 0-120% POTI (0-10VDC/1mA + scale 0-120% w.pot )
WEIGEL    功率轉換器    DGW2.2 0-1625kw(48..62hz) 250/1A 6000/100V 4-20mA 2..10V
WEIGEL    電壓表    EQ96K-500V
WEIGEL    傳感器    PQ96K 0-40V
WEIGEL    90°指針表    PSQ48(4~20mA 帶零位調整）48mmX48mm
WEIGEL    分流器    4000A/60MV
WEIGEL    電流表    LSP96K
WEIGEL    動鐵式儀表    AC 0..600A （Moving-iron meter AC 0..600 A ）
WEIGEL    功率因數變送器    DUW2.1
WEIGEL    電流表    EQ96-X 3000/1A
WEIGEL    電壓變送器    電壓變送器/V1U2.0
WEIGEL    電流表    EQ96K 5/10A
WEIGEL    拉速表    HR-WP-XC401-00-19-W
WEIGEL    儀表    PQ96 0-60MV
WEIGEL    備件    EQ96K   0-500V
WEIGEL    安培表    PQ72K 0-20MA
WEIGEL    電壓表    PQ96K
WEIGEL    傾角顯示屏    DSA55-NS50/A2RW-12
WEIGEL    備件    WQ96RS SCALE:0-24KV
WEIGEL    備件    652.01.121600  SUS-01 R/G 220V DC
WEIGEL    電流表    EQ96K    1A 0-30KA
WEIGEL    分流器    SHUNT 2000A/150mV
WEIGEL    電壓表    EQ72K 0~750V
WEIGEL    電流表    UH230V-48 62HZ MAX 12VA
WEIGEL    功率因數變送器    DUW2.1
WEIGEL    備件    LSP96K
WEIGEL    電壓變送器    電壓變送器/V1U2.0
WEIGEL    備件    LSP144
WEIGEL    分流器    shunt-150mV-1000A-0.5
WEIGEL    電流表    PQ96K 0-10V:=0-150A
WEIGEL    功率因數變送器    DUW2.1
WEIGEL    測量變送表    VU03
WEIGEL    電流表    PQ48K  0-40MICROA
WEIGEL    備件    WEIGEL-0127 VU03
WEIGEL    備件    TUA2.2
WEIGEL    備件    AU2.0 Input: 0...1A  Output: 0...20mA
WEIGEL    恒張力指示INDICATOR    PQ42K Beleuchtung:24V、12V、6V
WEIGEL    顯示器    DAS10-40PIR S-Nr.943614008
WEIGEL    顯示器    DAS10-40P1R S-Nr.943622-003
WEIGEL    備件    WQ96/2S
WEIGEL    備件    WQ96/2S
WEIGEL    電壓表    LSP96K，輸入電流范圍4-20mA DC，輸出電壓范圍：0-250V，參數：150 CAT III，P小于0.01VA
WEIGEL    電壓變送器    電壓變送器/V1U2.0
WEIGEL    表    250V
WEIGEL    表    P72PRS
WEIGEL    電流顯示表    PQ96K60-0-60mV DC本體型規:PQ96K
WEIGEL    油缸行程顯示器    DAS10-40PIR S-Nr:943614008 備注645.4024.1000
WEIGEL    電流(liu)變送器    電流(liu)變送器/A1U2.0

WEIGEL 電流 PQ48K 0-40MICROA翊霈代理供應

WEIGEL 電流 PQ48K 0-40MICROA翊霈代理供應