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)(liu)表(biao)(biao)(biao)(biao)(biao)是根據(ju)通(tong)(tong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)導體(ti)在(zai)磁(ci)(ci)場(chang)(chang)中受磁(ci)(ci)場(chang)(chang)力的(de)作(zuo)用(yong)(yong)(yong)(yong)而制(zhi)成的(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)(liu)表(biao)(biao)(biao)(biao)(biao)內(nei)部有一(yi)永磁(ci)(ci)體(ti)，在(zai)極間產生磁(ci)(ci)場(chang)(chang)，在(zai)磁(ci)(ci)場(chang)(chang)中有一(yi)個(ge)(ge)線(xian)(xian)(xian)圈(quan)，線(xian)(xian)(xian)圈(quan)兩端(duan)各有一(yi)個(ge)(ge)游(you)絲(si)彈(dan)(dan)簧，彈(dan)(dan)簧各連接(jie)(jie)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)(liu)表(biao)(biao)(biao)(biao)(biao)的(de)一(yi)個(ge)(ge)接(jie)(jie)線(xian)(xian)(xian)柱，在(zai)彈(dan)(dan)簧與(yu)線(xian)(xian)(xian)圈(quan)間由一(yi)個(ge)(ge)轉(zhuan)(zhuan)軸連接(jie)(jie)，在(zai)轉(zhuan)(zhuan)軸相對(dui)(dui)于電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)的(de)前(qian)(qian)端(duan)，有一(yi)個(ge)(ge)指針。當有電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(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)(liu)沿彈(dan)(dan)簧、轉(zhuan)(zhuan)軸通(tong)(tong)過(guo)磁(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)(liu)切磁(ci)(ci)感線(xian)(xian)(xian)，所(suo)以(yi)受磁(ci)(ci)場(chang)(chang)力的(de)作(zuo)用(yong)(yong)(yong)(yong)，使線(xian)(xian)(xian)圈(quan)發生偏轉(zhuan)(zhuan)，帶動(dong)轉(zhuan)(zhuan)軸、指針偏轉(zhuan)(zhuan)。由于磁(ci)(ci)場(chang)(chang)力的(de)大(da)(da)(da)(da)小隨電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)增大(da)(da)(da)(da)而增大(da)(da)(da)(da)，所(suo)以(yi)就可(ke)(ke)(ke)以(yi)通(tong)(tong)過(guo)指針的(de)偏轉(zhuan)(zhuan)程度來觀(guan)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)(liu)的(de)大(da)(da)(da)(da)小。一(yi)般可(ke)(ke)(ke)直(zhi)接(jie)(jie)測(ce)(ce)量(liang)(liang)(liang)微安(an)(an)或毫安(an)(an)數(shu)(shu)(shu)量(liang)(liang)(liang)級的(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)(liu)，為(wei)測(ce)(ce)更大(da)(da)(da)(da)的(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)(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)(liu)表(biao)(biao)(biao)(biao)(biao)應(ying)有并(bing)聯(lian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)器(qi)(qi)(qi)(qi)(qi)（又稱分(fen)(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)(qi)）。主要采用(yong)(yong)(yong)(yong)磁(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)的(de)測(ce)(ce)量(liang)(liang)(liang)機(ji)(ji)構。分(fen)(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)(qi)的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)值要使滿量(liang)(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)(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)(liu)表(biao)(biao)(biao)(biao)(biao)滿偏轉(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)(liu)表(biao)(biao)(biao)(biao)(biao)指示達到(dao)最(zui)大(da)(da)(da)(da)。對(dui)(dui)于幾(ji)(ji)安(an)(an)的(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)(liu)，可(ke)(ke)(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)(liu)表(biao)(biao)(biao)(biao)(biao)內(nei)設(she)置分(fen)(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)(qi)。對(dui)(dui)于幾(ji)(ji)安(an)(an)以(yi)上的(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)(liu)，則(ze)(ze)采用(yong)(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)器(qi)(qi)(qi)(qi)(qi)。大(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)(liu)分(fen)(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)(qi)的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)值很小，為(wei)避免引(yin)線(xian)(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)和(he)接(jie)(jie)觸電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)附(fu)加(jia)于分(fen)(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)(qi)而引(yin)起(qi)誤差，分(fen)(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)(qi)要制(zhi)成四端(duan)形式(shi)，即有兩個(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)(liu)端(duan)，兩個(ge)(ge)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓端(duan)。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)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)主要采用(yong)(yong)(yong)(yong)磁(ci)(ci)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)系(xi)或電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)系(xi)測(ce)(ce)量(liang)(liang)(liang)機(ji)(ji)構(見機(ji)(ji)械式(shi)指示電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)(biao)(biao)測(ce)(ce)量(liang)(liang)(liang)機(ji)(ji)構)，這些測(ce)(ce)量(liang)(liang)(liang)機(ji)(ji)構的(de)測(ce)(ce)量(liang)(liang)(liang)基(ji)本量(liang)(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)(liu)，可(ke)(ke)(ke)用(yong)(yong)(yong)(yong)來直(zhi)接(jie)(jie)測(ce)(ce)小電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)。對(dui)(dui)于大(da)(da)(da)(da)量(liang)(liang)(liang)值的(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)(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)(dian)系(xi)測(ce)(ce)量(liang)(liang)(liang)機(ji)(ji)構要使用(yong)(yong)(yong)(yong)分(fen)(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)(qi)，也就是并(bing)聯(lian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)。它的(de)作(zuo)用(yong)(yong)(yong)(yong)是將大(da)(da)(da)(da)部分(fen)(fen)(fen)(fen)(fen)被(bei)測(ce)(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)(liu)分(fen)(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)。對(dui)(dui)約(yue)10A以(yi)下的(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)(liu)多采用(yong)(yong)(yong)(yong)內(nei)附(fu)分(fen)(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)(qi);對(dui)(dui)更大(da)(da)(da)(da)的(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)(liu)值，則(ze)(ze)使用(yong)(yong)(yong)(yong)分(fen)(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)(qi)。它采取四端(duan)結構(圖(tu)a)，具有兩個(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)(liu)端(duan)，兩個(ge)(ge)電(dian)(dian)(dian)(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)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)(liu)表(biao)(biao)(biao)(biao)(biao)可(ke)(ke)(ke)采用(yong)(yong)(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)系(xi)或電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)系(xi)測(ce)(ce)量(liang)(liang)(liang)機(ji)(ji)構。為(wei)使磁(ci)(ci)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)系(xi)測(ce)(ce)量(liang)(liang)(liang)機(ji)(ji)構也能用(yong)(yong)(yong)(yong)于測(ce)(ce)量(liang)(liang)(liang)交(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)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)，可(ke)(ke)(ke)利用(yong)(yong)(yong)(yong)整(zheng)(zheng)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)(dian)偶(ou)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)轉(zhuan)(zhuan)換為(wei)直(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu);由它們組(zu)合而成的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)(biao)(biao)分(fen)(fen)(fen)(fen)(fen)別稱為(wei)整(zheng)(zheng)流(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)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)(見整(zheng)(zheng)流(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)表(biao)(biao)(biao)(biao)(biao))、熱(re)電(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)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)。為(wei)擴大(da)(da)(da)(da)量(liang)(liang)(liang)程以(yi)測(ce)(ce)量(liang)(liang)(liang)大(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)(liu)，整(zheng)(zheng)流(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)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)也采用(yong)(yong)(yong)(yong)分(fen)(fen)(fen)(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)(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)(liu)表(biao)(biao)(biao)(biao)(biao)的(de)做法同前(qian)(qian);電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(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)(liu)表(biao)(biao)(biao)(biao)(biao)則(ze)(ze)是加(jia)粗線(xian)(xian)(xian)圈(quan)導線(xian)(xian)(xian)、減少匝數(shu)(shu)(shu)。對(dui)(dui)于更大(da)(da)(da)(da)的(de)測(ce)(ce)量(liang)(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)(liu)值需配合電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)互感器(qi)(qi)(qi)(qi)(qi)使用(yong)(yong)(yong)(yong)。通(tong)(tong)常(chang)可(ke)(ke)(ke)利用(yong)(yong)(yong)(yong)分(fen)(fen)(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)(qi)和(he)交(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)數(shu)(shu)(shu)字電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓表(biao)(biao)(biao)(biao)(biao)構成交(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)數(shu)(shu)(shu)字電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)。

接近開關是一種無需與運動部件進行機械直接接觸而可以操作的位置開關，當物體接近開關的感應面到動作距離時，不需要機械接觸及施加任何壓力即可使開關動作，從而驅動直流電器或給計算機（plc)裝置提供控制指令。接近開關是種開關型傳感器（即無觸點開關），它既有行程開關、微動開關的特性，同時具有傳感性能，且動作可靠，性能穩定，頻率響應快，應用壽命長，抗干擾能力強等、并具有防水、防震、耐腐蝕等特點。產品有電感式、電容式、霍爾式、交、直流型。
接近開(kai)關(guan)又稱無觸點接近開(kai)關(guan)，是(shi)理想(xiang)的(de)(de)(de)(de)電(dian)子開(kai)關(guan)量傳感(gan)(gan)器。當金屬檢測體接近開(kai)關(guan)的(de)(de)(de)(de)感(gan)(gan)應區域(yu)，開(kai)關(guan)就能(neng)(neng)無接觸，無壓力、無火花、迅(xun)速發出電(dian)氣指令，準(zhun)確反(fan)應出運(yun)動(dong)機構的(de)(de)(de)(de)位置和(he)行(xing)(xing)程(cheng)，即使用(yong)于一(yi)般(ban)的(de)(de)(de)(de)行(xing)(xing)程(cheng)控制(zhi)(zhi)，其定(ding)位精度、操作(zuo)頻(pin)率、使用(yong)壽命、安裝調整的(de)(de)(de)(de)方(fang)便性和(he)對(dui)惡劣環境的(de)(de)(de)(de)適用(yong)能(neng)(neng)力，是(shi)一(yi)般(ban)機械式行(xing)(xing)程(cheng)開(kai)關(guan)所不能(neng)(neng)相比的(de)(de)(de)(de)。它(ta)廣(guang)泛地應用(yong)于機床、冶金、化工(gong)、輕紡和(he)印刷等(deng)行(xing)(xing)業。在自(zi)動(dong)控制(zhi)(zhi)系統中(zhong)可作(zuo)為限位、計數、定(ding)位控制(zhi)(zhi)和(he)自(zi)動(dong)保護環節等(deng)。

WEIGEL    備件    EQ72K 50/5A 600V
WEIGEL    電器件    SHUNT 4000A/60MV/CLASS 0.5
WEIGEL    顯示器    DAS10-40PIR S-Nr.943614008
WEIGEL    分流器    0.5 250A 60mV Q
WEIGEL    備件    AU2.0  0-5A/0-20mA
WEIGEL    功率因數變送器    DUW2.1
WEIGEL    備件    AU2.0 Input: 0...1A  Output: 0...20mA
WEIGEL    備件    EQ96K   0-500V
WEIGEL    備件    Type: AU2.0 Nr: 21090803
WEIGEL    分流器    800.4420.S.10KA.30mV
WEIGEL    表    UH230V 48-62HZ max.1.2VA
WEIGEL    電流表    PQ96K
WEIGEL    備件    EQ96K   0-500V
WEIGEL    豎式指針表    MP96X24K(4~20mA 帶零位調整）96mm×24mm豎式指針表
WEIGEL    90°指針表    PSQ48(4~20mA 帶零位調整）48mmX48mm
WEIGEL    電流表    EQ96-X            CT   80/5A    scale 0—80A  2倍過載  無紅線
WEIGEL    測量變送器    VU03
WEIGEL    備件    EQ72K
WEIGEL    電壓表    PQ96K 0-10V 0-120% POTI (0-10VDC/1mA + scale 0-120% w.pot )
WEIGEL    電流表    EQ96K  100/5A
WEIGEL    電流表    PQ48K  0-40MICROA
WEIGEL    備件    EQ96K  0-1A=》0-800A
WEIGEL    電壓轉換器    AU2.0  0-1A
WEIGEL    分流器    8000A/60MV
WEIGEL    備件    DA13-NA50/I12R-4
WEIGEL    電流表    PQ96K 10V 0-8000A
WEIGEL    備件    EQ96K  0-1A=》0-800A
WEIGEL    分流器    SHUNT 60MV 200A， 137-9059
WEIGEL    數字顯示表    DGA100-40A10GD-2 SN4113-001
WEIGEL    備件    LSP96K
WEIGEL    檢測表    DSA13-NP40/CIR-07
WEIGEL    備件    EQ72K 50/5A 600V
WEIGEL    備件    BIEQ 72K 15min 3000/1A
WEIGEL    數顯表    DPA14-31A10R-4-M
WEIGEL    備件    DV3.001.776C
WEIGEL    模擬表    LSP72K meas.range 4-20ma SCALEO-1000N/M
WEIGEL    壓力變送器    TYPE:V1U 2.2 SN:26057009
WEIGEL    電流表    EQ48RS/0-250/500mA 表盤尺寸47*47mm
WEIGEL    橫式指針表    MP96X24K(4~20mA 帶零位調整） 96mm×24mm
WEIGEL    電流表    EQ96K-500V 96*96
WEIGEL    顯示器    DAS10-40P1R  S-NR:1040128-002
WEIGEL    動鐵式儀表    AC 0..500V （Moving-iron meter AC 0..500 V ）
WEIGEL    電流變送器    電流變送器/A1U2.0
WEIGEL    橫式指針表    MP48X24K 4~20mA 24mm×48mm 橫式指針表
WEIGEL    備件    TUA2.2
WEIGEL    電流表    EQ48RS/0-250/500mA 表盤尺寸47*47mm
WEIGEL    電流變送器    電流變送器/A1U2.0
WEIGEL    電流表    E-1005-9021-00V cover for IP65
WEIGEL    橫式指針表    MP96X24K(4~20mA 帶零位調整） 96mm×24mm
WEIGEL    分流器    8000A/60MV
WEIGEL    雙指(zhi)針電壓表    2EQ96/2 0-900/230V

WEIGEL 電流表EQ96K-500V96*96翊霈代理供應

WEIGEL 電流表EQ96K-500V96*96翊霈代理供應