WEIGEL電流表RW96MIN翊霈優質供應

WEIGEL電流表RW96MIN翊霈優質供應

傳統的(de)指針(zhen)式(shi)電(dian)(dian)(dian)壓表(biao)(biao)(biao)和電(dian)(dian)(dian)流(liu)表(biao)(biao)(biao)都是(shi)根據一個原理就是(shi)電(dian)(dian)(dian)流(liu)的(de)磁(ci)效應。電(dian)(dian)(dian)流(liu)越(yue)大，所產生(sheng)(sheng)的(de)磁(ci)力(li)越(yue)大，表(biao)(biao)(biao)現出(chu)的(de)就是(shi)電(dian)(dian)(dian)壓表(biao)(biao)(biao)上的(de)指針(zhen)的(de)擺幅越(yue)大，電(dian)(dian)(dian)壓表(biao)(biao)(biao)內有一個磁(ci)鐵和一個導線(xian)線(xian)圈，通過電(dian)(dian)(dian)流(liu)后，會使線(xian)圈產生(sheng)(sheng)磁(ci)場，線(xian)圈通電(dian)(dian)(dian)后在磁(ci)鐵的(de)作用(yong)下會發生(sheng)(sheng)偏(pian)轉，這就是(shi)電(dian)(dian)(dian)流(liu)表(biao)(biao)(biao)、電(dian)(dian)(dian)壓表(biao)(biao)(biao)的(de)表(biao)(biao)(biao)頭部分。
由于電(dian)(dian)(dian)壓(ya)表(biao)(biao)(biao)要與被測電(dian)(dian)(dian)阻(zu)(zu)并聯，所以(yi)如果直接用靈敏電(dian)(dian)(dian)流(liu)計當電(dian)(dian)(dian)壓(ya)表(biao)(biao)(biao)用，表(biao)(biao)(biao)中的電(dian)(dian)(dian)流(liu)過(guo)大，會燒壞電(dian)(dian)(dian)表(biao)(biao)(biao)，這(zhe)時需要在(zai)電(dian)(dian)(dian)壓(ya)表(biao)(biao)(biao)的內部電(dian)(dian)(dian)路中串聯一個很大的電(dian)(dian)(dian)阻(zu)(zu)，這(zhe)樣改造后，當電(dian)(dian)(dian)壓(ya)表(biao)(biao)(biao)再(zai)并聯在(zai)電(dian)(dian)(dian)路中時，由于電(dian)(dian)(dian)阻(zu)(zu)的作用，加(jia)在(zai)電(dian)(dian)(dian)表(biao)(biao)(biao)兩端的電(dian)(dian)(dian)壓(ya)絕大部分都(dou)被這(zhe)個串聯的電(dian)(dian)(dian)阻(zu)(zu)分擔了，所以(yi)通過(guo)電(dian)(dian)(dian)表(biao)(biao)(biao)的電(dian)(dian)(dian)流(liu)實際上很小，所以(yi)就可以(yi)正常(chang)使用了。
?主(zhu)要(yao)(yao)(yao)(yao)采(cai)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)磁(ci)(ci)(ci)(ci)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)和(he)(he)靜(jing)(jing)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)測(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)機(ji)(ji)(ji)(ji)(ji)構(gou)(gou)(gou)(gou)。磁(ci)(ci)(ci)(ci)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)由小(xiao)量(liang)(liang)(liang)(liang)(liang)(liang)程(cheng)(cheng)(cheng)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)磁(ci)(ci)(ci)(ci)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)(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)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)與(yu)(yu)串(chuan)聯(lian)(lian)(lian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)器(qi)(qi)(qi)(qi)(又(you)稱分(fen)(fen)(fen)壓(ya)(ya)器(qi)(qi)(qi)(qi))組(zu)成(cheng)，低(di)量(liang)(liang)(liang)(liang)(liang)(liang)程(cheng)(cheng)(cheng)為(wei)(wei)(wei)(wei)(wei)(wei)(wei)十(shi)幾(ji)毫伏(fu)。為(wei)(wei)(wei)(wei)(wei)(wei)(wei)了(le)(le)(le)擴(kuo)(kuo)大(da)(da)(da)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)量(liang)(liang)(liang)(liang)(liang)(liang)程(cheng)(cheng)(cheng)，可(ke)以(yi)(yi)增(zeng)大(da)(da)(da)分(fen)(fen)(fen)壓(ya)(ya)器(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)值(zhi)。例如用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)50微安(an)(an)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)形(xing)成(cheng)250伏(fu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)時(shi)，要(yao)(yao)(yao)(yao)使(shi)分(fen)(fen)(fen)壓(ya)(ya)器(qi)(qi)(qi)(qi)與(yu)(yu)測(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)機(ji)(ji)(ji)(ji)(ji)構(gou)(gou)(gou)(gou)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)總電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)值(zhi)為(wei)(wei)(wei)(wei)(wei)(wei)(wei)250/[50×10^(-6)]=5×10^6歐=5兆(zhao)歐，這(zhe)相當(dang)于(yu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)內(nei)阻(zu)(zu)(zu)(zu)(zu)為(wei)(wei)(wei)(wei)(wei)(wei)(wei)20千歐/伏(fu)。為(wei)(wei)(wei)(wei)(wei)(wei)(wei)了(le)(le)(le)避免電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)接(jie)入過多(duo)影響原(yuan)工(gong)作狀態，要(yao)(yao)(yao)(yao)求(qiu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)有(you)較高(gao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)內(nei)阻(zu)(zu)(zu)(zu)(zu)。用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)幾(ji)個(ge)(ge)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)組(zu)成(cheng)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)分(fen)(fen)(fen)壓(ya)(ya)器(qi)(qi)(qi)(qi)和(he)(he)測(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)機(ji)(ji)(ji)(ji)(ji)構(gou)(gou)(gou)(gou)串(chuan)聯(lian)(lian)(lian)，可(ke)形(xing)成(cheng)多(duo)量(liang)(liang)(liang)(liang)(liang)(liang)程(cheng)(cheng)(cheng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)。靜(jing)(jing)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)低(di)量(liang)(liang)(liang)(liang)(liang)(liang)程(cheng)(cheng)(cheng)為(wei)(wei)(wei)(wei)(wei)(wei)(wei)幾(ji)十(shi)伏(fu)，擴(kuo)(kuo)大(da)(da)(da)量(liang)(liang)(liang)(liang)(liang)(liang)程(cheng)(cheng)(cheng)是(shi)靠改變電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)內(nei)部(bu)(bu)結(jie)構(gou)(gou)(gou)(gou)和(he)(he)極間(jian)距離來(lai)(lai)達(da)到。此外，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)系(xi)(xi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)測(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)機(ji)(ji)(ji)(ji)(ji)構(gou)(gou)(gou)(gou)在(zai)(zai)理論(lun)上也(ye)可(ke)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)于(yu)測(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)直(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)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)。?電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)是(shi)個(ge)(ge)大(da)(da)(da)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)器(qi)(qi)(qi)(qi)，理想(xiang)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)認(ren)(ren)為(wei)(wei)(wei)(wei)(wei)(wei)(wei)是(shi)斷路。在(zai)(zai)并(bing)(bing)(bing)(bing)(bing)聯(lian)(lian)(lian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路中并(bing)(bing)(bing)(bing)(bing)聯(lian)(lian)(lian)了(le)(le)(le)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(跟別的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)并(bing)(bing)(bing)(bing)(bing)聯(lian)(lian)(lian))和(he)(he)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)，如果(guo)在(zai)(zai)干路中沒有(you)其(qi)(qi)(qi)他的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)，可(ke)以(yi)(yi)認(ren)(ren)為(wei)(wei)(wei)(wei)(wei)(wei)(wei)測(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(因為(wei)(wei)(wei)(wei)(wei)(wei)(wei)并(bing)(bing)(bing)(bing)(bing)聯(lian)(lian)(lian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路上的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)全部(bu)(bu)享用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)了(le)(le)(le)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya))；如果(guo)干路中還(huan)連(lian)接(jie)其(qi)(qi)(qi)他的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)，那(nei)這(zhe)個(ge)(ge)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)就分(fen)(fen)(fen)享了(le)(le)(le)部(bu)(bu)分(fen)(fen)(fen)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)，那(nei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)測(ce)(ce)(ce)(ce)(ce)(ce)(ce)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)只能是(shi)部(bu)(bu)分(fen)(fen)(fen)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(連(lian)接(jie)在(zai)(zai)哪個(ge)(ge)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)就是(shi)哪個(ge)(ge)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya))。進行研究，他發(fa)明了(le)(le)(le)許多(duo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)儀(yi)器(qi)(qi)(qi)(qi)。1841年發(fa)明了(le)(le)(le)既可(ke)測(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)地磁(ci)(ci)(ci)(ci)強(qiang)(qiang)度(du)又(you)可(ke)測(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)強(qiang)(qiang)度(du)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)學(xue)單(dan)(dan)位的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)雙線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)；1846年發(fa)明了(le)(le)(le)既可(ke)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)來(lai)(lai)確定電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)強(qiang)(qiang)度(du)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動力(li)學(xue)單(dan)(dan)位又(you)可(ke)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)來(lai)(lai)測(ce)(ce)(ce)(ce)(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)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)功率的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)功率表(biao)(biao)(biao)(biao)(biao)(biao)(biao)；1853年發(fa)明了(le)(le)(le)測(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)地磁(ci)(ci)(ci)(ci)強(qiang)(qiang)度(du)垂直(zhi)分(fen)(fen)(fen)量(liang)(liang)(liang)(liang)(liang)(liang)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)地磁(ci)(ci)(ci)(ci)感應器(qi)(qi)(qi)(qi)。韋伯(bo)在(zai)(zai)建立電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)學(xue)單(dan)(dan)位的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)測(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)方面(mian)卓有(you)成(cheng)效(xiao)。他提出了(le)(le)(le)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)強(qiang)(qiang)度(du)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)量(liang)(liang)(liang)(liang)(liang)(liang)和(he)(he)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動勢的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)單(dan)(dan)位和(he)(he)測(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)方法；根據安(an)(an)培的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動力(li)學(xue)公式(shi)提出了(le)(le)(le)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)強(qiang)(qiang)度(du)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動力(li)學(xue)單(dan)(dan)位；還(huan)提出了(le)(le)(le)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)單(dan)(dan)位。韋伯(bo)與(yu)(yu)柯爾勞施合作測(ce)(ce)(ce)(ce)(ce)(ce)(ce)定了(le)(le)(le)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)量(liang)(liang)(liang)(liang)(liang)(liang)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)單(dan)(dan)位對(dui)靜(jing)(jing)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)單(dan)(dan)位的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)比(bi)(bi)值(zhi)，發(fa)現這(zhe)個(ge)(ge)比(bi)(bi)值(zhi)等于(yu)3×10^8m/s，接(jie)近于(yu)光速(su)。直(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)(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)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)主(zhu)要(yao)(yao)(yao)(yao)采(cai)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)磁(ci)(ci)(ci)(ci)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動系(xi)(xi)測(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)機(ji)(ji)(ji)(ji)(ji)構(gou)(gou)(gou)(gou)(見機(ji)(ji)(ji)(ji)(ji)械式(shi)指示電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)測(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)機(ji)(ji)(ji)(ji)(ji)構(gou)(gou)(gou)(gou))，這(zhe)些測(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)機(ji)(ji)(ji)(ji)(ji)構(gou)(gou)(gou)(gou)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)測(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)基本量(liang)(liang)(liang)(liang)(liang)(liang)是(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)，可(ke)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)來(lai)(lai)直(zhi)接(jie)測(ce)(ce)(ce)(ce)(ce)(ce)(ce)小(xiao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)。對(dui)于(yu)大(da)(da)(da)量(liang)(liang)(liang)(liang)(liang)(liang)值(zhi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)直(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)(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)，磁(ci)(ci)(ci)(ci)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)系(xi)(xi)測(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)機(ji)(ji)(ji)(ji)(ji)構(gou)(gou)(gou)(gou)要(yao)(yao)(yao)(yao)使(shi)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)分(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)，也(ye)就是(shi)并(bing)(bing)(bing)(bing)(bing)聯(lian)(lian)(lian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)。它的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)作用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)是(shi)將(jiang)大(da)(da)(da)部(bu)(bu)分(fen)(fen)(fen)被測(ce)(ce)(ce)(ce)(ce)(ce)(ce)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)分(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)。對(dui)約(yue)10A以(yi)(yi)下的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)多(duo)采(cai)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)內(nei)附分(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi);對(dui)更大(da)(da)(da)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)值(zhi)，則(ze)使(shi)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)分(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)。它采(cai)取四端結(jie)構(gou)(gou)(gou)(gou)(圖(tu)a)，具有(you)兩個(ge)(ge)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)端，兩個(ge)(ge)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)位端。其(qi)(qi)(qi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)值(zhi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)選擇條(tiao)件為(wei)(wei)(wei)(wei)(wei)(wei)(wei)：當(dang)標稱電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)通過該分(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)時(shi)，其(qi)(qi)(qi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)位端間(jian)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)為(wei)(wei)(wei)(wei)(wei)(wei)(wei)45mV或75mV;以(yi)(yi)量(liang)(liang)(liang)(liang)(liang)(liang)程(cheng)(cheng)(cheng)為(wei)(wei)(wei)(wei)(wei)(wei)(wei)45mV或75mV的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)磁(ci)(ci)(ci)(ci)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)系(xi)(xi)毫伏(fu)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)測(ce)(ce)(ce)(ce)(ce)(ce)(ce)此電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)值(zhi)，而表(biao)(biao)(biao)(biao)(biao)(biao)(biao)盤(pan)上則(ze)以(yi)(yi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)值(zhi)刻度(du)。對(dui)于(yu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動系(xi)(xi)測(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)機(ji)(ji)(ji)(ji)(ji)構(gou)(gou)(gou)(gou)，擴(kuo)(kuo)大(da)(da)(da)測(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)量(liang)(liang)(liang)(liang)(liang)(liang)程(cheng)(cheng)(cheng)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)方法是(shi)：①加(jia)粗(cu)靜(jing)(jing)圈(quan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)導線(xian)(xian)，同(tong)時(shi)減(jian)少(shao)匝數(shu)以(yi)(yi)保持安(an)(an)匝值(zhi)不變;②將(jiang)兩靜(jing)(jing)圈(quan)由串(chuan)聯(lian)(lian)(lian)改為(wei)(wei)(wei)(wei)(wei)(wei)(wei)并(bing)(bing)(bing)(bing)(bing)聯(lian)(lian)(lian)[圖(tu)(b)、(c)]，可(ke)使(shi)量(liang)(liang)(liang)(liang)(liang)(liang)程(cheng)(cheng)(cheng)擴(kuo)(kuo)大(da)(da)(da)一(yi)倍。利用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)分(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)和(he)(he)數(shu)字(zi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)可(ke)構(gou)(gou)(gou)(gou)成(cheng)直(zhi)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)(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)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)。交(jiao)(jiao)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)(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)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)主(zhu)要(yao)(yao)(yao)(yao)采(cai)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)系(xi)(xi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動系(xi)(xi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)和(he)(he)整流(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)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)測(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)機(ji)(ji)(ji)(ji)(ji)構(gou)(gou)(gou)(gou)。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)系(xi)(xi)測(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)機(ji)(ji)(ji)(ji)(ji)構(gou)(gou)(gou)(gou)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)低(di)量(liang)(liang)(liang)(liang)(liang)(liang)程(cheng)(cheng)(cheng)約(yue)為(wei)(wei)(wei)(wei)(wei)(wei)(wei)幾(ji)十(shi)毫安(an)(an)，為(wei)(wei)(wei)(wei)(wei)(wei)(wei)提高(gao)量(liang)(liang)(liang)(liang)(liang)(liang)程(cheng)(cheng)(cheng)，要(yao)(yao)(yao)(yao)按比(bi)(bi)例減(jian)少(shao)線(xian)(xian)圈(quan)匝數(shu)，并(bing)(bing)(bing)(bing)(bing)加(jia)粗(cu)導線(xian)(xian)。用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動系(xi)(xi)測(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)機(ji)(ji)(ji)(ji)(ji)構(gou)(gou)(gou)(gou)構(gou)(gou)(gou)(gou)成(cheng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)時(shi)，動圈(quan)與(yu)(yu)靜(jing)(jing)圈(quan)并(bing)(bing)(bing)(bing)(bing)聯(lian)(lian)(lian)，其(qi)(qi)(qi)低(di)量(liang)(liang)(liang)(liang)(liang)(liang)程(cheng)(cheng)(cheng)約(yue)為(wei)(wei)(wei)(wei)(wei)(wei)(wei)幾(ji)十(shi)毫安(an)(an)。為(wei)(wei)(wei)(wei)(wei)(wei)(wei)提高(gao)量(liang)(liang)(liang)(liang)(liang)(liang)程(cheng)(cheng)(cheng)，要(yao)(yao)(yao)(yao)減(jian)少(shao)靜(jing)(jing)圈(quan)匝數(shu)，并(bing)(bing)(bing)(bing)(bing)加(jia)粗(cu)導線(xian)(xian)，或將(jiang)兩個(ge)(ge)靜(jing)(jing)圈(quan)由串(chuan)聯(lian)(lian)(lian)改為(wei)(wei)(wei)(wei)(wei)(wei)(wei)并(bing)(bing)(bing)(bing)(bing)聯(lian)(lian)(lian)，則(ze)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)量(liang)(liang)(liang)(liang)(liang)(liang)程(cheng)(cheng)(cheng)將(jiang)增(zeng)大(da)(da)(da)一(yi)倍。用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)整流(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)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)測(ce)(ce)(ce)(ce)(ce)(ce)(ce)交(jiao)(jiao)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)(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)時(shi)，僅當(dang)交(jiao)(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)為(wei)(wei)(wei)(wei)(wei)(wei)(wei)正(zheng)弦波形(xing)時(shi)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)讀數(shu)才正(zheng)確。為(wei)(wei)(wei)(wei)(wei)(wei)(wei)擴(kuo)(kuo)大(da)(da)(da)量(liang)(liang)(liang)(liang)(liang)(liang)程(cheng)(cheng)(cheng)也(ye)可(ke)利用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)分(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)。此外，也(ye)可(ke)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)熱電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)測(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)機(ji)(ji)(ji)(ji)(ji)構(gou)(gou)(gou)(gou)測(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)高(gao)頻電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)。在(zai)(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)力(li)系(xi)(xi)統(tong)中使(shi)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)大(da)(da)(da)量(liang)(liang)(liang)(liang)(liang)(liang)程(cheng)(cheng)(cheng)交(jiao)(jiao)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)(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)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)多(duo)是(shi)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)5A或1A的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)系(xi)(xi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)，并(bing)(bing)(bing)(bing)(bing)配以(yi)(yi)適當(dang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)變比(bi)(bi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)互感器(qi)(qi)(qi)(qi)。???
要知道在(zai)電壓(ya)表內，有一(yi)個(ge)磁鐵和一(yi)個(ge)導(dao)線(xian)線(xian)圈(quan)，通過電流后(hou)，會使(shi)線(xian)圈(quan)產生磁場，這樣(yang)線(xian)圈(quan)通電后(hou)在(zai)磁鐵的作用(yong)下(xia)會旋轉，這就是電流表、電壓(ya)表的表頭部(bu)分。
這(zhe)(zhe)個(ge)(ge)(ge)(ge)表(biao)頭所能(neng)通(tong)(tong)(tong)(tong)過的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)流(liu)很(hen)(hen)小(xiao)，兩端(duan)所能(neng)承(cheng)受的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)壓(ya)也很(hen)(hen)小(xiao)（肯定遠小(xiao)于1V，可(ke)能(neng)只(zhi)有(you)(you)零點(dian)零幾伏甚至更小(xiao)），為了(le)能(neng)測量實際電(dian)(dian)(dian)(dian)路中的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)壓(ya)，需要(yao)給(gei)這(zhe)(zhe)個(ge)(ge)(ge)(ge)電(dian)(dian)(dian)(dian)壓(ya)表(biao)串聯一(yi)(yi)個(ge)(ge)(ge)(ge)比較大(da)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)阻(zu)，做(zuo)成電(dian)(dian)(dian)(dian)壓(ya)表(biao)。這(zhe)(zhe)樣，即使兩端(duan)加上(shang)比較大(da)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)壓(ya)，可(ke)是大(da)部分電(dian)(dian)(dian)(dian)壓(ya)都作用在(zai)(zai)加的(de)(de)(de)(de)那個(ge)(ge)(ge)(ge)大(da)電(dian)(dian)(dian)(dian)阻(zu)上(shang)了(le)，表(biao)頭上(shang)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)壓(ya)就會很(hen)(hen)小(xiao)了(le)。電(dian)(dian)(dian)(dian)壓(ya)表(biao)是一(yi)(yi)種內(nei)部電(dian)(dian)(dian)(dian)阻(zu)很(hen)(hen)大(da)的(de)(de)(de)(de)儀(yi)器，一(yi)(yi)般應該大(da)于幾千歐。表(biao)頭是跟據(ju)通(tong)(tong)(tong)(tong)電(dian)(dian)(dian)(dian)導體在(zai)(zai)磁場(chang)(chang)中受磁場(chang)(chang)力的(de)(de)(de)(de)作用而制成的(de)(de)(de)(de)。表(biao)內(nei)部有(you)(you)一(yi)(yi)永磁體，在(zai)(zai)極間產生磁場(chang)(chang)，在(zai)(zai)磁場(chang)(chang)中有(you)(you)一(yi)(yi)個(ge)(ge)(ge)(ge)線(xian)(xian)圈(quan)(quan)，線(xian)(xian)圈(quan)(quan)兩端(duan)各有(you)(you)一(yi)(yi)個(ge)(ge)(ge)(ge)游絲(si)彈簧(huang)(huang)，彈簧(huang)(huang)各連接表(biao)的(de)(de)(de)(de)一(yi)(yi)個(ge)(ge)(ge)(ge)接線(xian)(xian)柱，在(zai)(zai)彈簧(huang)(huang)與線(xian)(xian)圈(quan)(quan)間由一(yi)(yi)個(ge)(ge)(ge)(ge)轉(zhuan)(zhuan)軸連接，在(zai)(zai)轉(zhuan)(zhuan)軸相對于電(dian)(dian)(dian)(dian)流(liu)表(biao)的(de)(de)(de)(de)前(qian)端(duan)，有(you)(you)一(yi)(yi)個(ge)(ge)(ge)(ge)指針(zhen)。當有(you)(you)電(dian)(dian)(dian)(dian)流(liu)通(tong)(tong)(tong)(tong)過時，電(dian)(dian)(dian)(dian)流(liu)沿彈簧(huang)(huang)、轉(zhuan)(zhuan)軸通(tong)(tong)(tong)(tong)過磁場(chang)(chang)，電(dian)(dian)(dian)(dian)流(liu)切磁感線(xian)(xian)，所以受磁場(chang)(chang)力的(de)(de)(de)(de)作用，使線(xian)(xian)圈(quan)(quan)發生偏(pian)(pian)轉(zhuan)(zhuan)，帶(dai)動轉(zhuan)(zhuan)軸、指針(zhen)偏(pian)(pian)轉(zhuan)(zhuan)。由于磁場(chang)(chang)力的(de)(de)(de)(de)大(da)小(xiao)隨(sui)電(dian)(dian)(dian)(dian)流(liu)增(zeng)大(da)而增(zeng)大(da)，所以就可(ke)以通(tong)(tong)(tong)(tong)過指針(zhen)的(de)(de)(de)(de)偏(pian)(pian)轉(zhuan)(zhuan)程度來觀察電(dian)(dian)(dian)(dian)流(liu)的(de)(de)(de)(de)大(da)小(xiao)。

WEIGEL電流表EQ72K 150A 0-100% 帶(dai)互感(gan)器
WEIGEL電流(liu)表(biao)EQ48RS/0-250/500mA 表(biao)盤尺寸47*47mm
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WEIGEL數(shu)顯表DPA14-31A10R-4-M
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傳(chuan)統的(de)(de)指針式電(dian)壓表(biao)(biao)和電(dian)流表(biao)(biao)都(dou)是根(gen)據(ju)一個原(yuan)理就(jiu)是電(dian)流的(de)(de)磁(ci)效應。電(dian)流越(yue)(yue)大(da)，所產(chan)生的(de)(de)磁(ci)力越(yue)(yue)大(da)，表(biao)(biao)現出的(de)(de)就(jiu)是電(dian)壓表(biao)(biao)上的(de)(de)指針的(de)(de)擺幅越(yue)(yue)大(da)，電(dian)壓表(biao)(biao)內有一個磁(ci)鐵和一個導線線圈(quan)，通過電(dian)流后(hou)(hou)，會使線圈(quan)產(chan)生磁(ci)場，線圈(quan)通電(dian)后(hou)(hou)在(zai)磁(ci)鐵的(de)(de)作(zuo)用下會發生偏(pian)轉(zhuan)，這就(jiu)是電(dian)流表(biao)(biao)、電(dian)壓表(biao)(biao)的(de)(de)表(biao)(biao)頭部(bu)分(fen)。
由(you)于電壓表(biao)(biao)要與被測電阻并(bing)聯(lian)，所以(yi)(yi)如果直接(jie)用靈敏電流(liu)計當電壓表(biao)(biao)用，表(biao)(biao)中(zhong)的電流(liu)過(guo)大(da)，會燒(shao)壞(huai)電表(biao)(biao)，這時需要在(zai)電壓表(biao)(biao)的內部電路(lu)中(zhong)串聯(lian)一個(ge)(ge)很(hen)大(da)的電阻，這樣改造后，當電壓表(biao)(biao)再并(bing)聯(lian)在(zai)電路(lu)中(zhong)時，由(you)于電阻的作用，加在(zai)電表(biao)(biao)兩端(duan)的電壓絕大(da)部分都被這個(ge)(ge)串聯(lian)的電阻分擔了(le)，所以(yi)(yi)通過(guo)電表(biao)(biao)的電流(liu)實際上(shang)很(hen)小(xiao)，所以(yi)(yi)就可以(yi)(yi)正常(chang)使用了(le)。
?主(zhu)要(yao)(yao)(yao)采(cai)用(yong)(yong)(yong)(yong)(yong)(yong)磁(ci)(ci)(ci)(ci)(ci)(ci)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)和(he)(he)(he)靜(jing)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)測(ce)(ce)量(liang)(liang)(liang)機(ji)(ji)(ji)構(gou)(gou)(gou)。磁(ci)(ci)(ci)(ci)(ci)(ci)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)由(you)小量(liang)(liang)(liang)程(cheng)(cheng)的(de)(de)(de)(de)(de)(de)(de)(de)(de)磁(ci)(ci)(ci)(ci)(ci)(ci)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)(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)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)與串(chuan)(chuan)聯(lian)(lian)(lian)(lian)(lian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)(又(you)稱(cheng)分(fen)(fen)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)(qi)(qi)(qi)(qi))組(zu)成(cheng)(cheng)，低量(liang)(liang)(liang)程(cheng)(cheng)為(wei)(wei)(wei)(wei)(wei)(wei)十(shi)(shi)幾毫伏。為(wei)(wei)(wei)(wei)(wei)(wei)了(le)(le)擴(kuo)(kuo)大(da)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)量(liang)(liang)(liang)程(cheng)(cheng)，可(ke)(ke)以(yi)(yi)增大(da)分(fen)(fen)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)值(zhi)(zhi)。例(li)如用(yong)(yong)(yong)(yong)(yong)(yong)50微安(an)(an)的(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)形成(cheng)(cheng)250伏的(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)時(shi)，要(yao)(yao)(yao)使分(fen)(fen)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)與測(ce)(ce)量(liang)(liang)(liang)機(ji)(ji)(ji)構(gou)(gou)(gou)的(de)(de)(de)(de)(de)(de)(de)(de)(de)總電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)值(zhi)(zhi)為(wei)(wei)(wei)(wei)(wei)(wei)250/[50×10^(-6)]=5×10^6歐(ou)=5兆歐(ou)，這(zhe)(zhe)相當(dang)于(yu)(yu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)內阻(zu)為(wei)(wei)(wei)(wei)(wei)(wei)20千歐(ou)/伏。為(wei)(wei)(wei)(wei)(wei)(wei)了(le)(le)避免電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)接入(ru)過多(duo)影(ying)響原工作(zuo)(zuo)狀態(tai)，要(yao)(yao)(yao)求電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)有(you)較高的(de)(de)(de)(de)(de)(de)(de)(de)(de)內阻(zu)。用(yong)(yong)(yong)(yong)(yong)(yong)幾個(ge)(ge)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)組(zu)成(cheng)(cheng)的(de)(de)(de)(de)(de)(de)(de)(de)(de)分(fen)(fen)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)和(he)(he)(he)測(ce)(ce)量(liang)(liang)(liang)機(ji)(ji)(ji)構(gou)(gou)(gou)串(chuan)(chuan)聯(lian)(lian)(lian)(lian)(lian)，可(ke)(ke)形成(cheng)(cheng)多(duo)量(liang)(liang)(liang)程(cheng)(cheng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)。靜(jing)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)低量(liang)(liang)(liang)程(cheng)(cheng)為(wei)(wei)(wei)(wei)(wei)(wei)幾十(shi)(shi)伏，擴(kuo)(kuo)大(da)量(liang)(liang)(liang)程(cheng)(cheng)是(shi)(shi)靠(kao)改(gai)變電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)內部(bu)結構(gou)(gou)(gou)和(he)(he)(he)極間距離來(lai)(lai)達到。此外，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)系(xi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)測(ce)(ce)量(liang)(liang)(liang)機(ji)(ji)(ji)構(gou)(gou)(gou)在(zai)理論上(shang)也可(ke)(ke)用(yong)(yong)(yong)(yong)(yong)(yong)于(yu)(yu)測(ce)(ce)量(liang)(liang)(liang)直(zhi)流(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)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)。?電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)是(shi)(shi)個(ge)(ge)大(da)的(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)，理想的(de)(de)(de)(de)(de)(de)(de)(de)(de)認為(wei)(wei)(wei)(wei)(wei)(wei)是(shi)(shi)斷路(lu)(lu)。在(zai)并(bing)(bing)聯(lian)(lian)(lian)(lian)(lian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)中(zhong)(zhong)并(bing)(bing)聯(lian)(lian)(lian)(lian)(lian)了(le)(le)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(跟別(bie)的(de)(de)(de)(de)(de)(de)(de)(de)(de)用(yong)(yong)(yong)(yong)(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)并(bing)(bing)聯(lian)(lian)(lian)(lian)(lian))和(he)(he)(he)用(yong)(yong)(yong)(yong)(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)，如果在(zai)干路(lu)(lu)中(zhong)(zhong)沒有(you)其(qi)他的(de)(de)(de)(de)(de)(de)(de)(de)(de)用(yong)(yong)(yong)(yong)(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)，可(ke)(ke)以(yi)(yi)認為(wei)(wei)(wei)(wei)(wei)(wei)測(ce)(ce)量(liang)(liang)(liang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(因為(wei)(wei)(wei)(wei)(wei)(wei)并(bing)(bing)聯(lian)(lian)(lian)(lian)(lian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)上(shang)的(de)(de)(de)(de)(de)(de)(de)(de)(de)用(yong)(yong)(yong)(yong)(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)全部(bu)享用(yong)(yong)(yong)(yong)(yong)(yong)了(le)(le)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya))；如果干路(lu)(lu)中(zhong)(zhong)還(huan)連(lian)接其(qi)他的(de)(de)(de)(de)(de)(de)(de)(de)(de)用(yong)(yong)(yong)(yong)(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)，那這(zhe)(zhe)個(ge)(ge)用(yong)(yong)(yong)(yong)(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)就分(fen)(fen)享了(le)(le)部(bu)分(fen)(fen)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)，那電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)測(ce)(ce)的(de)(de)(de)(de)(de)(de)(de)(de)(de)只能(neng)是(shi)(shi)部(bu)分(fen)(fen)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(連(lian)接在(zai)哪(na)個(ge)(ge)用(yong)(yong)(yong)(yong)(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)就是(shi)(shi)哪(na)個(ge)(ge)用(yong)(yong)(yong)(yong)(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya))。進行(xing)研(yan)究，他發明(ming)了(le)(le)許多(duo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)儀器(qi)(qi)(qi)(qi)(qi)(qi)(qi)。1841年發明(ming)了(le)(le)既(ji)(ji)可(ke)(ke)測(ce)(ce)量(liang)(liang)(liang)地磁(ci)(ci)(ci)(ci)(ci)(ci)強(qiang)(qiang)(qiang)度(du)又(you)可(ke)(ke)測(ce)(ce)量(liang)(liang)(liang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)強(qiang)(qiang)(qiang)度(du)的(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)學單(dan)(dan)(dan)位(wei)(wei)的(de)(de)(de)(de)(de)(de)(de)(de)(de)雙線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)；1846年發明(ming)了(le)(le)既(ji)(ji)可(ke)(ke)用(yong)(yong)(yong)(yong)(yong)(yong)來(lai)(lai)確(que)定(ding)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)強(qiang)(qiang)(qiang)度(du)的(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)力(li)學單(dan)(dan)(dan)位(wei)(wei)又(you)可(ke)(ke)用(yong)(yong)(yong)(yong)(yong)(yong)來(lai)(lai)測(ce)(ce)量(liang)(liang)(liang)交流(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)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)功(gong)率的(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)功(gong)率表(biao)(biao)(biao)(biao)(biao)(biao)(biao)；1853年發明(ming)了(le)(le)測(ce)(ce)量(liang)(liang)(liang)地磁(ci)(ci)(ci)(ci)(ci)(ci)強(qiang)(qiang)(qiang)度(du)垂直(zhi)分(fen)(fen)量(liang)(liang)(liang)的(de)(de)(de)(de)(de)(de)(de)(de)(de)地磁(ci)(ci)(ci)(ci)(ci)(ci)感應器(qi)(qi)(qi)(qi)(qi)(qi)(qi)。韋(wei)伯在(zai)建立電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)學單(dan)(dan)(dan)位(wei)(wei)的(de)(de)(de)(de)(de)(de)(de)(de)(de)測(ce)(ce)量(liang)(liang)(liang)方面卓有(you)成(cheng)(cheng)效。他提出(chu)了(le)(le)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)強(qiang)(qiang)(qiang)度(du)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)量(liang)(liang)(liang)和(he)(he)(he)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)勢的(de)(de)(de)(de)(de)(de)(de)(de)(de)單(dan)(dan)(dan)位(wei)(wei)和(he)(he)(he)測(ce)(ce)量(liang)(liang)(liang)方法；根(gen)據安(an)(an)培(pei)的(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)力(li)學公式提出(chu)了(le)(le)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)強(qiang)(qiang)(qiang)度(du)的(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)力(li)學單(dan)(dan)(dan)位(wei)(wei)；還(huan)提出(chu)了(le)(le)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)單(dan)(dan)(dan)位(wei)(wei)。韋(wei)伯與柯爾勞施合作(zuo)(zuo)測(ce)(ce)定(ding)了(le)(le)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)量(liang)(liang)(liang)的(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)單(dan)(dan)(dan)位(wei)(wei)對(dui)(dui)(dui)靜(jing)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)單(dan)(dan)(dan)位(wei)(wei)的(de)(de)(de)(de)(de)(de)(de)(de)(de)比(bi)(bi)值(zhi)(zhi)，發現這(zhe)(zhe)個(ge)(ge)比(bi)(bi)值(zhi)(zhi)等于(yu)(yu)3×10^8m/s，接近于(yu)(yu)光(guang)速。直(zhi)流(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)(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)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)主(zhu)要(yao)(yao)(yao)采(cai)用(yong)(yong)(yong)(yong)(yong)(yong)磁(ci)(ci)(ci)(ci)(ci)(ci)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)系(xi)測(ce)(ce)量(liang)(liang)(liang)機(ji)(ji)(ji)構(gou)(gou)(gou)(見機(ji)(ji)(ji)械式指示電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)測(ce)(ce)量(liang)(liang)(liang)機(ji)(ji)(ji)構(gou)(gou)(gou))，這(zhe)(zhe)些測(ce)(ce)量(liang)(liang)(liang)機(ji)(ji)(ji)構(gou)(gou)(gou)的(de)(de)(de)(de)(de)(de)(de)(de)(de)測(ce)(ce)量(liang)(liang)(liang)基(ji)本量(liang)(liang)(liang)是(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)，可(ke)(ke)用(yong)(yong)(yong)(yong)(yong)(yong)來(lai)(lai)直(zhi)接測(ce)(ce)小電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)。對(dui)(dui)(dui)于(yu)(yu)大(da)量(liang)(liang)(liang)值(zhi)(zhi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)直(zhi)流(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)(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)，磁(ci)(ci)(ci)(ci)(ci)(ci)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)系(xi)測(ce)(ce)量(liang)(liang)(liang)機(ji)(ji)(ji)構(gou)(gou)(gou)要(yao)(yao)(yao)使用(yong)(yong)(yong)(yong)(yong)(yong)分(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)，也就是(shi)(shi)并(bing)(bing)聯(lian)(lian)(lian)(lian)(lian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)。它(ta)的(de)(de)(de)(de)(de)(de)(de)(de)(de)作(zuo)(zuo)用(yong)(yong)(yong)(yong)(yong)(yong)是(shi)(shi)將大(da)部(bu)分(fen)(fen)被測(ce)(ce)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)分(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)。對(dui)(dui)(dui)約(yue)10A以(yi)(yi)下的(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)多(duo)采(cai)用(yong)(yong)(yong)(yong)(yong)(yong)內附分(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)(qi)(qi)(qi);對(dui)(dui)(dui)更大(da)的(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)值(zhi)(zhi)，則使用(yong)(yong)(yong)(yong)(yong)(yong)分(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)。它(ta)采(cai)取四端(duan)結構(gou)(gou)(gou)(圖(tu)a)，具(ju)有(you)兩(liang)個(ge)(ge)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)端(duan)，兩(liang)個(ge)(ge)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)位(wei)(wei)端(duan)。其(qi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)值(zhi)(zhi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)選擇條(tiao)件為(wei)(wei)(wei)(wei)(wei)(wei)：當(dang)標(biao)稱(cheng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)通(tong)過該(gai)分(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)時(shi)，其(qi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)位(wei)(wei)端(duan)間的(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)為(wei)(wei)(wei)(wei)(wei)(wei)45mV或(huo)(huo)75mV;以(yi)(yi)量(liang)(liang)(liang)程(cheng)(cheng)為(wei)(wei)(wei)(wei)(wei)(wei)45mV或(huo)(huo)75mV的(de)(de)(de)(de)(de)(de)(de)(de)(de)磁(ci)(ci)(ci)(ci)(ci)(ci)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)系(xi)毫伏表(biao)(biao)(biao)(biao)(biao)(biao)(biao)測(ce)(ce)此電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)值(zhi)(zhi)，而表(biao)(biao)(biao)(biao)(biao)(biao)(biao)盤上(shang)則以(yi)(yi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)值(zhi)(zhi)刻度(du)。對(dui)(dui)(dui)于(yu)(yu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)系(xi)測(ce)(ce)量(liang)(liang)(liang)機(ji)(ji)(ji)構(gou)(gou)(gou)，擴(kuo)(kuo)大(da)測(ce)(ce)量(liang)(liang)(liang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)量(liang)(liang)(liang)程(cheng)(cheng)的(de)(de)(de)(de)(de)(de)(de)(de)(de)方法是(shi)(shi)：①加粗(cu)靜(jing)圈(quan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)導線(xian)，同時(shi)減(jian)少(shao)匝(za)數(shu)以(yi)(yi)保持安(an)(an)匝(za)值(zhi)(zhi)不變;②將兩(liang)靜(jing)圈(quan)由(you)串(chuan)(chuan)聯(lian)(lian)(lian)(lian)(lian)改(gai)為(wei)(wei)(wei)(wei)(wei)(wei)并(bing)(bing)聯(lian)(lian)(lian)(lian)(lian)[圖(tu)(b)、(c)]，可(ke)(ke)使量(liang)(liang)(liang)程(cheng)(cheng)擴(kuo)(kuo)大(da)一(yi)倍。利用(yong)(yong)(yong)(yong)(yong)(yong)分(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)和(he)(he)(he)數(shu)字電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)(ya)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)可(ke)(ke)構(gou)(gou)(gou)成(cheng)(cheng)直(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)數(shu)字電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)。交流(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)(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)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)主(zhu)要(yao)(yao)(yao)采(cai)用(yong)(yong)(yong)(yong)(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)系(xi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)系(xi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)和(he)(he)(he)整(zheng)流(liu)(liu)(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)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)測(ce)(ce)量(liang)(liang)(liang)機(ji)(ji)(ji)構(gou)(gou)(gou)。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)系(xi)測(ce)(ce)量(liang)(liang)(liang)機(ji)(ji)(ji)構(gou)(gou)(gou)的(de)(de)(de)(de)(de)(de)(de)(de)(de)低量(liang)(liang)(liang)程(cheng)(cheng)約(yue)為(wei)(wei)(wei)(wei)(wei)(wei)幾十(shi)(shi)毫安(an)(an)，為(wei)(wei)(wei)(wei)(wei)(wei)提高量(liang)(liang)(liang)程(cheng)(cheng)，要(yao)(yao)(yao)按比(bi)(bi)例(li)減(jian)少(shao)線(xian)圈(quan)匝(za)數(shu)，并(bing)(bing)加粗(cu)導線(xian)。用(yong)(yong)(yong)(yong)(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)系(xi)測(ce)(ce)量(liang)(liang)(liang)機(ji)(ji)(ji)構(gou)(gou)(gou)構(gou)(gou)(gou)成(cheng)(cheng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)時(shi)，動(dong)(dong)圈(quan)與靜(jing)圈(quan)并(bing)(bing)聯(lian)(lian)(lian)(lian)(lian)，其(qi)低量(liang)(liang)(liang)程(cheng)(cheng)約(yue)為(wei)(wei)(wei)(wei)(wei)(wei)幾十(shi)(shi)毫安(an)(an)。為(wei)(wei)(wei)(wei)(wei)(wei)提高量(liang)(liang)(liang)程(cheng)(cheng)，要(yao)(yao)(yao)減(jian)少(shao)靜(jing)圈(quan)匝(za)數(shu)，并(bing)(bing)加粗(cu)導線(xian)，或(huo)(huo)將兩(liang)個(ge)(ge)靜(jing)圈(quan)由(you)串(chuan)(chuan)聯(lian)(lian)(lian)(lian)(lian)改(gai)為(wei)(wei)(wei)(wei)(wei)(wei)并(bing)(bing)聯(lian)(lian)(lian)(lian)(lian)，則電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)量(liang)(liang)(liang)程(cheng)(cheng)將增大(da)一(yi)倍。用(yong)(yong)(yong)(yong)(yong)(yong)整(zheng)流(liu)(liu)(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)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)測(ce)(ce)交流(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)(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)時(shi)，僅當(dang)交流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)為(wei)(wei)(wei)(wei)(wei)(wei)正(zheng)弦(xian)波形時(shi)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)讀數(shu)才(cai)正(zheng)確(que)。為(wei)(wei)(wei)(wei)(wei)(wei)擴(kuo)(kuo)大(da)量(liang)(liang)(liang)程(cheng)(cheng)也可(ke)(ke)利用(yong)(yong)(yong)(yong)(yong)(yong)分(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)。此外，也可(ke)(ke)用(yong)(yong)(yong)(yong)(yong)(yong)熱電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)測(ce)(ce)量(liang)(liang)(liang)機(ji)(ji)(ji)構(gou)(gou)(gou)測(ce)(ce)量(liang)(liang)(liang)高頻電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)。在(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)力(li)系(xi)統中(zhong)(zhong)使用(yong)(yong)(yong)(yong)(yong)(yong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)大(da)量(liang)(liang)(liang)程(cheng)(cheng)交流(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)(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)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)多(duo)是(shi)(shi)用(yong)(yong)(yong)(yong)(yong)(yong)5A或(huo)(huo)1A的(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)系(xi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)，并(bing)(bing)配以(yi)(yi)適(shi)當(dang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)變比(bi)(bi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(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)互感器(qi)(qi)(qi)(qi)(qi)(qi)(qi)。???
要知(zhi)道在電(dian)壓(ya)表內(nei)，有一(yi)個磁(ci)鐵(tie)(tie)和一(yi)個導線(xian)線(xian)圈(quan)，通(tong)過電(dian)流后，會使線(xian)圈(quan)產生磁(ci)場，這樣線(xian)圈(quan)通(tong)電(dian)后在磁(ci)鐵(tie)(tie)的作用(yong)下會旋轉，這就是電(dian)流表、電(dian)壓(ya)表的表頭部分。
這個(ge)表(biao)頭(tou)所(suo)能(neng)通(tong)(tong)(tong)過(guo)(guo)的(de)電(dian)(dian)(dian)流(liu)(liu)很小，兩端所(suo)能(neng)承受的(de)電(dian)(dian)(dian)壓(ya)(ya)也很小（肯定遠小于1V，可(ke)能(neng)只有(you)零點零幾伏(fu)甚至更小），為了能(neng)測量實際電(dian)(dian)(dian)路(lu)中的(de)電(dian)(dian)(dian)壓(ya)(ya)，需(xu)要給這個(ge)電(dian)(dian)(dian)壓(ya)(ya)表(biao)串聯一(yi)(yi)個(ge)比較大(da)(da)(da)的(de)電(dian)(dian)(dian)阻(zu)(zu)，做(zuo)成(cheng)電(dian)(dian)(dian)壓(ya)(ya)表(biao)。這樣，即使兩端加上比較大(da)(da)(da)的(de)電(dian)(dian)(dian)壓(ya)(ya)，可(ke)是(shi)大(da)(da)(da)部分電(dian)(dian)(dian)壓(ya)(ya)都作(zuo)用在(zai)(zai)加的(de)那個(ge)大(da)(da)(da)電(dian)(dian)(dian)阻(zu)(zu)上了，表(biao)頭(tou)上的(de)電(dian)(dian)(dian)壓(ya)(ya)就會很小了。電(dian)(dian)(dian)壓(ya)(ya)表(biao)是(shi)一(yi)(yi)種內(nei)部電(dian)(dian)(dian)阻(zu)(zu)很大(da)(da)(da)的(de)儀器，一(yi)(yi)般應該大(da)(da)(da)于幾千歐。表(biao)頭(tou)是(shi)跟據通(tong)(tong)(tong)電(dian)(dian)(dian)導(dao)體在(zai)(zai)磁(ci)場(chang)中受磁(ci)場(chang)力(li)的(de)作(zuo)用而(er)制(zhi)成(cheng)的(de)。表(biao)內(nei)部有(you)一(yi)(yi)永磁(ci)體，在(zai)(zai)極(ji)間產生(sheng)磁(ci)場(chang)，在(zai)(zai)磁(ci)場(chang)中有(you)一(yi)(yi)個(ge)線(xian)(xian)圈(quan)，線(xian)(xian)圈(quan)兩端各(ge)有(you)一(yi)(yi)個(ge)游絲彈簧，彈簧各(ge)連(lian)(lian)接表(biao)的(de)一(yi)(yi)個(ge)接線(xian)(xian)柱，在(zai)(zai)彈簧與線(xian)(xian)圈(quan)間由一(yi)(yi)個(ge)轉軸連(lian)(lian)接，在(zai)(zai)轉軸相(xiang)對于電(dian)(dian)(dian)流(liu)(liu)表(biao)的(de)前(qian)端，有(you)一(yi)(yi)個(ge)指(zhi)針(zhen)。當有(you)電(dian)(dian)(dian)流(liu)(liu)通(tong)(tong)(tong)過(guo)(guo)時，電(dian)(dian)(dian)流(liu)(liu)沿彈簧、轉軸通(tong)(tong)(tong)過(guo)(guo)磁(ci)場(chang)，電(dian)(dian)(dian)流(liu)(liu)切磁(ci)感線(xian)(xian)，所(suo)以(yi)受磁(ci)場(chang)力(li)的(de)作(zuo)用，使線(xian)(xian)圈(quan)發生(sheng)偏(pian)轉，帶動轉軸、指(zhi)針(zhen)偏(pian)轉。由于磁(ci)場(chang)力(li)的(de)大(da)(da)(da)小隨電(dian)(dian)(dian)流(liu)(liu)增大(da)(da)(da)而(er)增大(da)(da)(da)，所(suo)以(yi)就可(ke)以(yi)通(tong)(tong)(tong)過(guo)(guo)指(zhi)針(zhen)的(de)偏(pian)轉程(cheng)度(du)來觀(guan)察電(dian)(dian)(dian)流(liu)(liu)的(de)大(da)(da)(da)小。
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