電(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)是根據通(tong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)導體(ti)(ti)在(zai)(zai)磁(ci)(ci)場(chang)中(zhong)受(shou)(shou)磁(ci)(ci)場(chang)力(li)(li)的(de)(de)(de)(de)作用(yong)(yong)(yong)(yong)而制(zhi)(zhi)成的(de)(de)(de)(de)。電(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)部有(you)(you)一永磁(ci)(ci)體(ti)(ti)，在(zai)(zai)極間產生磁(ci)(ci)場(chang)，在(zai)(zai)磁(ci)(ci)場(chang)中(zhong)有(you)(you)一個(ge)(ge)線(xian)(xian)圈(quan)，線(xian)(xian)圈(quan)兩(liang)端(duan)(duan)(duan)各(ge)有(you)(you)一個(ge)(ge)游絲彈(dan)簧(huang)(huang)，彈(dan)簧(huang)(huang)各(ge)連(lian)接(jie)電(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(de)(de)(de)(de)一個(ge)(ge)接(jie)線(xian)(xian)柱，在(zai)(zai)彈(dan)簧(huang)(huang)與線(xian)(xian)圈(quan)間由一個(ge)(ge)轉(zhuan)(zhuan)(zhuan)軸連(lian)接(jie)，在(zai)(zai)轉(zhuan)(zhuan)(zhuan)軸相對(dui)(dui)于(yu)(yu)(yu)電(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(de)(de)(de)(de)前端(duan)(duan)(duan)，有(you)(you)一個(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)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)通(tong)過時，電(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(huang)(huang)、轉(zhuan)(zhuan)(zhuan)軸通(tong)過磁(ci)(ci)場(chang)，電(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)感線(xian)(xian)，所以受(shou)(shou)磁(ci)(ci)場(chang)力(li)(li)的(de)(de)(de)(de)作用(yong)(yong)(yong)(yong)，使(shi)線(xian)(xian)圈(quan)發生偏(pian)(pian)轉(zhuan)(zhuan)(zhuan)，帶動(dong)(dong)轉(zhuan)(zhuan)(zhuan)軸、指針(zhen)偏(pian)(pian)轉(zhuan)(zhuan)(zhuan)。由于(yu)(yu)(yu)磁(ci)(ci)場(chang)力(li)(li)的(de)(de)(de)(de)大(da)(da)小隨電(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)而增大(da)(da)，所以就可(ke)以通(tong)過指針(zhen)的(de)(de)(de)(de)偏(pian)(pian)轉(zhuan)(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)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)的(de)(de)(de)(de)大(da)(da)小。一般可(ke)直(zhi)接(jie)測(ce)(ce)(ce)量(liang)(liang)微安(an)或(huo)毫安(an)數(shu)(shu)量(liang)(liang)級(ji)的(de)(de)(de)(de)電(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)(wei)測(ce)(ce)(ce)更大(da)(da)的(de)(de)(de)(de)電(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)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)應有(you)(you)并(bing)聯(lian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻器(qi)(qi)(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)(qi)(qi)）。主(zhu)要(yao)(yao)采(cai)(cai)(cai)用(yong)(yong)(yong)(yong)磁(ci)(ci)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)系(xi)(xi)(xi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)的(de)(de)(de)(de)測(ce)(ce)(ce)量(liang)(liang)機(ji)構(gou)(gou)(gou)(gou)(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)(qi)(qi)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻值(zhi)要(yao)(yao)使(shi)滿量(liang)(liang)程電(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)過時，電(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)滿偏(pian)(pian)轉(zhuan)(zhuan)(zhuan)，即電(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)。對(dui)(dui)于(yu)(yu)(yu)幾安(an)的(de)(de)(de)(de)電(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)在(zai)(zai)電(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)設(she)置(zhi)分(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)。對(dui)(dui)于(yu)(yu)(yu)幾安(an)以上(shang)的(de)(de)(de)(de)電(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)(cai)用(yong)(yong)(yong)(yong)外附分(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)。大(da)(da)電(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)(qi)(qi)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻值(zhi)很(hen)小，為(wei)(wei)避免引(yin)線(xian)(xian)電(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)阻附加于(yu)(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)(qi)(qi)而引(yin)起(qi)誤差，分(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)要(yao)(yao)制(zhi)(zhi)成四端(duan)(duan)(duan)形式(shi)，即有(you)(you)兩(liang)個(ge)(ge)電(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)(duan)(duan)，兩(liang)個(ge)(ge)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)端(duan)(duan)(duan)。直(zhi)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)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)(cai)(cai)用(yong)(yong)(yong)(yong)磁(ci)(ci)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)系(xi)(xi)(xi)或(huo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)系(xi)(xi)(xi)測(ce)(ce)(ce)量(liang)(liang)機(ji)構(gou)(gou)(gou)(gou)(gou)(gou)(見機(ji)械式(shi)指示電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)測(ce)(ce)(ce)量(liang)(liang)機(ji)構(gou)(gou)(gou)(gou)(gou)(gou))，這些測(ce)(ce)(ce)量(liang)(liang)機(ji)構(gou)(gou)(gou)(gou)(gou)(gou)的(de)(de)(de)(de)測(ce)(ce)(ce)量(liang)(liang)基本(ben)量(liang)(liang)是電(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)用(yong)(yong)(yong)(yong)來(lai)直(zhi)接(jie)測(ce)(ce)(ce)小電(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)(yu)大(da)(da)量(liang)(liang)值(zhi)的(de)(de)(de)(de)直(zhi)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)流(liu)(liu)(liu)(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)(dian)(dian)(dian)(dian)(dian)系(xi)(xi)(xi)測(ce)(ce)(ce)量(liang)(liang)機(ji)構(gou)(gou)(gou)(gou)(gou)(gou)要(yao)(yao)使(shi)用(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)(qi)(qi)，也(ye)(ye)就是并(bing)聯(lian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻。它(ta)的(de)(de)(de)(de)作用(yong)(yong)(yong)(yong)是將大(da)(da)部分(fen)(fen)(fen)(fen)被(bei)測(ce)(ce)(ce)電(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)約10A以下的(de)(de)(de)(de)電(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)(cai)用(yong)(yong)(yong)(yong)內(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)(qi)(qi);對(dui)(dui)更大(da)(da)的(de)(de)(de)(de)電(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)，則(ze)使(shi)用(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)(qi)(qi)。它(ta)采(cai)(cai)(cai)取(qu)四端(duan)(duan)(duan)結構(gou)(gou)(gou)(gou)(gou)(gou)(圖a)，具有(you)(you)兩(liang)個(ge)(ge)電(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)(duan)(duan)，兩(liang)個(ge)(ge)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)位端(duan)(duan)(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)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)可(ke)采(cai)(cai)(cai)用(yong)(yong)(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)系(xi)(xi)(xi)或(huo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)系(xi)(xi)(xi)測(ce)(ce)(ce)量(liang)(liang)機(ji)構(gou)(gou)(gou)(gou)(gou)(gou)。為(wei)(wei)使(shi)磁(ci)(ci)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)系(xi)(xi)(xi)測(ce)(ce)(ce)量(liang)(liang)機(ji)構(gou)(gou)(gou)(gou)(gou)(gou)也(ye)(ye)能(neng)用(yong)(yong)(yong)(yong)于(yu)(yu)(yu)測(ce)(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)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)，可(ke)利用(yong)(yong)(yong)(yong)整流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)或(huo)熱(re)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)偶等器(qi)(qi)(qi)(qi)件先(xian)將交(jiao)(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)轉(zhuan)(zhuan)(zhuan)換為(wei)(wei)直(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu);由它(ta)們組(zu)合而成的(de)(de)(de)(de)電(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)(wei)整流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)式(shi)電(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)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao))、熱(re)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)式(shi)電(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)(wei)擴大(da)(da)量(liang)(liang)程以測(ce)(ce)(ce)量(liang)(liang)大(da)(da)電(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)電(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)(ye)采(cai)(cai)(cai)用(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)(qi)(qi);電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)系(xi)(xi)(xi)電(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(de)(de)(de)(de)做(zuo)法同前;電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)系(xi)(xi)(xi)電(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(ze)是加粗線(xian)(xian)圈(quan)導線(xian)(xian)、減少(shao)匝數(shu)(shu)。對(dui)(dui)于(yu)(yu)(yu)更大(da)(da)的(de)(de)(de)(de)測(ce)(ce)(ce)量(liang)(liang)電(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)需配合電(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)互感器(qi)(qi)(qi)(qi)使(shi)用(yong)(yong)(yong)(yong)。通(tong)常可(ke)利用(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)(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)(shu)字(zi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)表(biao)(biao)(biao)構(gou)(gou)(gou)(gou)(gou)(gou)成交(jiao)(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)數(shu)(shu)字(zi)電(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)。

截(jie)(jie)止(zhi)閥(fa)(fa)(fa)(fa)(fa)又稱(cheng)截(jie)(jie)門(men)(men)(men)(men)(men)(men)閥(fa)(fa)(fa)(fa)(fa)，屬于強制(zhi)密封式(shi)閥(fa)(fa)(fa)(fa)(fa)門(men)(men)(men)(men)(men)(men)，所(suo)以(yi)在閥(fa)(fa)(fa)(fa)(fa)門(men)(men)(men)(men)(men)(men)關(guan)閉(bi)時，必(bi)須(xu)向(xiang)閥(fa)(fa)(fa)(fa)(fa)瓣(ban)(ban)施加(jia)壓(ya)力(li)，以(yi)強制(zhi)密封面(mian)不泄漏。當(dang)介(jie)質(zhi)(zhi)由閥(fa)(fa)(fa)(fa)(fa)瓣(ban)(ban)下(xia)(xia)方進入閥(fa)(fa)(fa)(fa)(fa)門(men)(men)(men)(men)(men)(men)時，操作(zuo)力(li)所(suo)需要克服的(de)(de)(de)(de)(de)(de)(de)(de)(de)阻(zu)力(li)，是閥(fa)(fa)(fa)(fa)(fa)桿和填料(liao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)摩(mo)擦力(li)與由介(jie)質(zhi)(zhi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)壓(ya)力(li)所(suo)產生的(de)(de)(de)(de)(de)(de)(de)(de)(de)推力(li)，關(guan)閥(fa)(fa)(fa)(fa)(fa)門(men)(men)(men)(men)(men)(men)的(de)(de)(de)(de)(de)(de)(de)(de)(de)力(li)比開(kai)(kai)閥(fa)(fa)(fa)(fa)(fa)門(men)(men)(men)(men)(men)(men)的(de)(de)(de)(de)(de)(de)(de)(de)(de)力(li)大(da)，所(suo)以(yi)閥(fa)(fa)(fa)(fa)(fa)桿的(de)(de)(de)(de)(de)(de)(de)(de)(de)直徑要大(da)，否則會發生閥(fa)(fa)(fa)(fa)(fa)桿頂(ding)彎的(de)(de)(de)(de)(de)(de)(de)(de)(de)故障。按連(lian)(lian)接(jie)(jie)方式(shi)分為(wei)三(san)種(zhong)(zhong)(zhong)：法蘭連(lian)(lian)接(jie)(jie)、絲扣連(lian)(lian)接(jie)(jie)、焊接(jie)(jie)連(lian)(lian)接(jie)(jie)。從自密封的(de)(de)(de)(de)(de)(de)(de)(de)(de)閥(fa)(fa)(fa)(fa)(fa)門(men)(men)(men)(men)(men)(men)出現后，截(jie)(jie)止(zhi)閥(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)(de)(de)(de)(de)(de)(de)介(jie)質(zhi)(zhi)流向(xiang)就改由閥(fa)(fa)(fa)(fa)(fa)瓣(ban)(ban)上方進入閥(fa)(fa)(fa)(fa)(fa)腔，這時在介(jie)質(zhi)(zhi)壓(ya)力(li)作(zuo)用下(xia)(xia)，關(guan)閥(fa)(fa)(fa)(fa)(fa)門(men)(men)(men)(men)(men)(men)的(de)(de)(de)(de)(de)(de)(de)(de)(de)力(li)小，而開(kai)(kai)閥(fa)(fa)(fa)(fa)(fa)門(men)(men)(men)(men)(men)(men)的(de)(de)(de)(de)(de)(de)(de)(de)(de)力(li)大(da)，閥(fa)(fa)(fa)(fa)(fa)桿的(de)(de)(de)(de)(de)(de)(de)(de)(de)直徑可(ke)以(yi)相應地減少。同時，在介(jie)質(zhi)(zhi)作(zuo)用下(xia)(xia)，這種(zhong)(zhong)(zhong)形式(shi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)閥(fa)(fa)(fa)(fa)(fa)門(men)(men)(men)(men)(men)(men)也較嚴(yan)密。我國(guo)閥(fa)(fa)(fa)(fa)(fa)門(men)(men)(men)(men)(men)(men)“三(san)化給”曾規定，截(jie)(jie)止(zhi)閥(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)(de)(de)(de)(de)(de)(de)流向(xiang)，一律采用自上而下(xia)(xia)。截(jie)(jie)止(zhi)閥(fa)(fa)(fa)(fa)(fa)開(kai)(kai)啟(qi)時，閥(fa)(fa)(fa)(fa)(fa)瓣(ban)(ban)的(de)(de)(de)(de)(de)(de)(de)(de)(de)開(kai)(kai)啟(qi)高(gao)度，為(wei)公(gong)稱(cheng)直徑的(de)(de)(de)(de)(de)(de)(de)(de)(de)25%～30%時.流量已達到最大(da)，表示閥(fa)(fa)(fa)(fa)(fa)門(men)(men)(men)(men)(men)(men)已達全(quan)開(kai)(kai)位置(zhi)。所(suo)以(yi)截(jie)(jie)止(zhi)閥(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)(de)(de)(de)(de)(de)(de)全(quan)開(kai)(kai)位置(zhi)，應由閥(fa)(fa)(fa)(fa)(fa)瓣(ban)(ban)的(de)(de)(de)(de)(de)(de)(de)(de)(de)行程(cheng)來(lai)決定。截(jie)(jie)止(zhi)閥(fa)(fa)(fa)(fa)(fa)（stop valve,Globe Valve）的(de)(de)(de)(de)(de)(de)(de)(de)(de)啟(qi)閉(bi)件是塞形的(de)(de)(de)(de)(de)(de)(de)(de)(de)閥(fa)(fa)(fa)(fa)(fa)瓣(ban)(ban)，密封上面(mian)呈平面(mian)或海錐(zhui)面(mian)，閥(fa)(fa)(fa)(fa)(fa)瓣(ban)(ban)沿閥(fa)(fa)(fa)(fa)(fa)座的(de)(de)(de)(de)(de)(de)(de)(de)(de)中心線作(zuo)直線運(yun)動(dong)。閥(fa)(fa)(fa)(fa)(fa)桿的(de)(de)(de)(de)(de)(de)(de)(de)(de)運(yun)動(dong)形式(shi)，（通(tong)用名稱(cheng)：暗桿），也有(you)升(sheng)降旋轉(zhuan)桿式(shi)可(ke)用于控制(zhi)空氣(qi)、水、蒸汽、各種(zhong)(zhong)(zhong)腐蝕性介(jie)質(zhi)(zhi)、泥漿、油品、液(ye)態金屬和放(fang)射性介(jie)質(zhi)(zhi)等各種(zhong)(zhong)(zhong)類(lei)型(xing)(xing)流體的(de)(de)(de)(de)(de)(de)(de)(de)(de)流動(dong)。因此，這種(zhong)(zhong)(zhong)類(lei)型(xing)(xing)的(de)(de)(de)(de)(de)(de)(de)(de)(de)截(jie)(jie)流截(jie)(jie)止(zhi)閥(fa)(fa)(fa)(fa)(fa)閥(fa)(fa)(fa)(fa)(fa)門(men)(men)(men)(men)(men)(men)非常(chang)適合(he)作(zuo)為(wei)切斷(duan)或調(diao)節以(yi)及(ji)節流用。由于該類(lei)閥(fa)(fa)(fa)(fa)(fa)門(men)(men)(men)(men)(men)(men)的(de)(de)(de)(de)(de)(de)(de)(de)(de)閥(fa)(fa)(fa)(fa)(fa)桿開(kai)(kai)啟(qi)或關(guan)閉(bi)行程(cheng)相對較短，而且具有(you)非常(chang)可(ke)靠的(de)(de)(de)(de)(de)(de)(de)(de)(de)切斷(duan)功能，又由于閥(fa)(fa)(fa)(fa)(fa)座通(tong)口的(de)(de)(de)(de)(de)(de)(de)(de)(de)變化與閥(fa)(fa)(fa)(fa)(fa)瓣(ban)(ban)的(de)(de)(de)(de)(de)(de)(de)(de)(de)行程(cheng)成(cheng)正(zheng)比例關(guan)系，非常(chang)適合(he)于對流量的(de)(de)(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(bian)送器    電流(liu)變(bian)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