WEIGEL電流表EQ72K 50/100/5A翊霈優質供應

WEIGEL電流表EQ72K 50/100/5A翊霈優質供應

萬用(yong)(yong)(yong)表(biao)(biao)又稱為(wei)復用(yong)(yong)(yong)表(biao)(biao)、多(duo)用(yong)(yong)(yong)表(biao)(biao)、三用(yong)(yong)(yong)表(biao)(biao)、繁用(yong)(yong)(yong)表(biao)(biao)等，是電(dian)(dian)(dian)力(li)電(dian)(dian)(dian)子等部門(men)*的測量儀表(biao)(biao)，一般以測量電(dian)(dian)(dian)壓、電(dian)(dian)(dian)流(liu)(liu)和(he)電(dian)(dian)(dian)阻為(wei)主要(yao)目(mu)的。萬用(yong)(yong)(yong)表(biao)(biao)按顯示方式分(fen)為(wei)指針萬用(yong)(yong)(yong)表(biao)(biao)和(he)數(shu)字萬用(yong)(yong)(yong)表(biao)(biao)。是一種多(duo)功能、多(duo)量程的測量儀表(biao)(biao)，一般萬用(yong)(yong)(yong)表(biao)(biao)可(ke)測量直流(liu)(liu)電(dian)(dian)(dian)流(liu)(liu)、直流(liu)(liu)電(dian)(dian)(dian)壓、交流(liu)(liu)電(dian)(dian)(dian)流(liu)(liu)、交流(liu)(liu)電(dian)(dian)(dian)壓、電(dian)(dian)(dian)阻和(he)音(yin)頻電(dian)(dian)(dian)平等，有的還可(ke)以測交流(liu)(liu)電(dian)(dian)(dian)流(liu)(liu)、電(dian)(dian)(dian)容量、電(dian)(dian)(dian)感量及半導(dao)體的一些(xie)參數(shu)（如β）等。
磁(ci)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)系電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)工(gong)儀(yi)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)的(de)(de)(de)(de)(de)(de)(de)測(ce)(ce)量(liang)(liang)(liang)(liang)機(ji)構是(shi)(shi)(shi)由(you)固(gu)定(ding)的(de)(de)(de)(de)(de)(de)(de)磁(ci)路(lu)系統(tong)和(he)可(ke)(ke)動(dong)(dong)部分組(zu)成的(de)(de)(de)(de)(de)(de)(de)。儀(yi)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)的(de)(de)(de)(de)(de)(de)(de)磁(ci)路(lu)系統(tong)包括(kuo)永磁(ci)鐵1，固(gu)定(ding)在(zai)(zai)(zai)磁(ci)鐵兩(liang)極(ji)(ji)(ji)(ji)的(de)(de)(de)(de)(de)(de)(de)極(ji)(ji)(ji)(ji)掌2以(yi)及處于(yu)兩(liang)個(ge)極(ji)(ji)(ji)(ji)掌之間(jian)的(de)(de)(de)(de)(de)(de)(de)圓柱形鐵芯3。圓柱形鐵芯固(gu)定(ding)在(zai)(zai)(zai)儀(yi)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)支(zhi)架上，用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)來減小磁(ci)阻(zu)(zu)，并使(shi)極(ji)(ji)(ji)(ji)掌和(he)鐵芯間(jian)的(de)(de)(de)(de)(de)(de)(de)空氣隙中產(chan)生均勻的(de)(de)(de)(de)(de)(de)(de)輻射形磁(ci)場。處在(zai)(zai)(zai)這(zhe)個(ge)磁(ci)場中的(de)(de)(de)(de)(de)(de)(de)可(ke)(ke)動(dong)(dong)線(xian)圈(quan)4繞(rao)轉(zhuan)軸(zhou)(zhou)(zhou)偏轉(zhuan)時(shi)(shi)，兩(liang)個(ge)有(you)(you)效邊上的(de)(de)(de)(de)(de)(de)(de)磁(ci)場也(ye)總是(shi)(shi)(shi)大小相等(deng)(deng)(deng)(deng)，并且(qie)方向是(shi)(shi)(shi)與(yu)(yu)線(xian)圈(quan)邊相互垂直的(de)(de)(de)(de)(de)(de)(de)。可(ke)(ke)動(dong)(dong)線(xian)圈(quan)繞(rao)在(zai)(zai)(zai)鋁框(kuang)上。轉(zhuan)軸(zhou)(zhou)(zhou)分成前(qian)后兩(liang)部分，每(mei)個(ge)半(ban)軸(zhou)(zhou)(zhou)的(de)(de)(de)(de)(de)(de)(de)一(yi)端固(gu)定(ding)在(zai)(zai)(zai)動(dong)(dong)圈(quan)鋁框(kuang)上，另一(yi)端則通過(guo)軸(zhou)(zhou)(zhou)尖支(zhi)撐(cheng)于(yu)軸(zhou)(zhou)(zhou)承中。在(zai)(zai)(zai)前(qian)半(ban)軸(zhou)(zhou)(zhou)還裝有(you)(you)指(zhi)針，當可(ke)(ke)動(dong)(dong)部分偏轉(zhuan)時(shi)(shi)，用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)來指(zhi)示被測(ce)(ce)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)量(liang)(liang)(liang)(liang)的(de)(de)(de)(de)(de)(de)(de)大小。萬(wan)(wan)(wan)(wan)(wan)(wan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)是(shi)(shi)(shi)一(yi)種(zhong)(zhong)帶有(you)(you)整流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器的(de)(de)(de)(de)(de)(de)(de)、可(ke)(ke)以(yi)測(ce)(ce)量(liang)(liang)(liang)(liang)交(jiao)(jiao)(jiao)、直流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)及電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)等(deng)(deng)(deng)(deng)多(duo)(duo)種(zhong)(zhong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)學參(can)量(liang)(liang)(liang)(liang)的(de)(de)(de)(de)(de)(de)(de)磁(ci)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)式(shi)儀(yi)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)。對(dui)于(yu)每(mei)一(yi)種(zhong)(zhong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)學量(liang)(liang)(liang)(liang),一(yi)般都有(you)(you)幾個(ge)量(liang)(liang)(liang)(liang)程。又稱多(duo)(duo)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)或(huo)簡(jian)稱多(duo)(duo)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)。萬(wan)(wan)(wan)(wan)(wan)(wan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)是(shi)(shi)(shi)由(you)磁(ci)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)系電(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)(表(biao)(biao)(biao)(biao)(biao)(biao)(biao)頭(tou)(tou)),測(ce)(ce)量(liang)(liang)(liang)(liang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)和(he)選(xuan)擇開關等(deng)(deng)(deng)(deng)組(zu)成的(de)(de)(de)(de)(de)(de)(de)。通過(guo)選(xuan)擇開關的(de)(de)(de)(de)(de)(de)(de)變(bian)換(huan),可(ke)(ke)方便地對(dui)多(duo)(duo)種(zhong)(zhong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)學參(can)量(liang)(liang)(liang)(liang)進(jin)行測(ce)(ce)量(liang)(liang)(liang)(liang)。其(qi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)計(ji)算的(de)(de)(de)(de)(de)(de)(de)主要(yao)依據是(shi)(shi)(shi)閉合電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)歐(ou)姆定(ding)律。萬(wan)(wan)(wan)(wan)(wan)(wan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)種(zhong)(zhong)類(lei)很多(duo)(duo),使(shi)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)時(shi)(shi)應根(gen)據不同的(de)(de)(de)(de)(de)(de)(de)要(yao)求進(jin)行選(xuan)擇。萬(wan)(wan)(wan)(wan)(wan)(wan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)由(you)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)頭(tou)(tou)、測(ce)(ce)量(liang)(liang)(liang)(liang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)及轉(zhuan)換(huan)開關等(deng)(deng)(deng)(deng)三(san)個(ge)主要(yao)部分組(zu)成。是(shi)(shi)(shi)一(yi)只高(gao)(gao)靈(ling)敏度(du)(du)(du)的(de)(de)(de)(de)(de)(de)(de)磁(ci)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)式(shi)直流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(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)，萬(wan)(wan)(wan)(wan)(wan)(wan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)的(de)(de)(de)(de)(de)(de)(de)主要(yao)性(xing)能(neng)(neng)(neng)指(zhi)標(biao)基本上取決于(yu)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)頭(tou)(tou)的(de)(de)(de)(de)(de)(de)(de)性(xing)能(neng)(neng)(neng)。表(biao)(biao)(biao)(biao)(biao)(biao)(biao)頭(tou)(tou)的(de)(de)(de)(de)(de)(de)(de)靈(ling)敏度(du)(du)(du)是(shi)(shi)(shi)指(zhi)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)頭(tou)(tou)指(zhi)針滿刻(ke)(ke)度(du)(du)(du)偏轉(zhuan)時(shi)(shi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)過(guo)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)頭(tou)(tou)的(de)(de)(de)(de)(de)(de)(de)直流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)值(zhi)(zhi)，這(zhe)個(ge)值(zhi)(zhi)越小，表(biao)(biao)(biao)(biao)(biao)(biao)(biao)頭(tou)(tou)的(de)(de)(de)(de)(de)(de)(de)靈(ling)敏度(du)(du)(du)愈高(gao)(gao)。測(ce)(ce)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)時(shi)(shi)的(de)(de)(de)(de)(de)(de)(de)內(nei)阻(zu)(zu)越大，其(qi)性(xing)能(neng)(neng)(neng)就越好。表(biao)(biao)(biao)(biao)(biao)(biao)(biao)頭(tou)(tou)上有(you)(you)四條(tiao)(tiao)刻(ke)(ke)度(du)(du)(du)線(xian)，它(ta)們的(de)(de)(de)(de)(de)(de)(de)功能(neng)(neng)(neng)如下：第(di)(di)一(yi)條(tiao)(tiao)（從上到(dao)下）標(biao)有(you)(you)R或(huo)Ω，指(zhi)示的(de)(de)(de)(de)(de)(de)(de)是(shi)(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)值(zhi)(zhi)，轉(zhuan)換(huan)開關在(zai)(zai)(zai)歐(ou)姆擋(dang)時(shi)(shi)，即讀此條(tiao)(tiao)刻(ke)(ke)度(du)(du)(du)線(xian)。第(di)(di)二(er)條(tiao)(tiao)標(biao)有(you)(you)∽和(he)VA,指(zhi)示的(de)(de)(de)(de)(de)(de)(de)是(shi)(shi)(shi)交(jiao)(jiao)(jiao)、直流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)和(he)直流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)值(zhi)(zhi)，當轉(zhuan)換(huan)開關在(zai)(zai)(zai)交(jiao)(jiao)(jiao)、直流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)或(huo)直流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)擋(dang)，量(liang)(liang)(liang)(liang)程在(zai)(zai)(zai)除交(jiao)(jiao)(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)10V以(yi)外的(de)(de)(de)(de)(de)(de)(de)其(qi)它(ta)位置時(shi)(shi)，即讀此條(tiao)(tiao)刻(ke)(ke)度(du)(du)(du)線(xian)。第(di)(di)三(san)條(tiao)(tiao)標(biao)有(you)(you)10V,指(zhi)示的(de)(de)(de)(de)(de)(de)(de)是(shi)(shi)(shi)10V的(de)(de)(de)(de)(de)(de)(de)交(jiao)(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)壓(ya)值(zhi)(zhi)，當轉(zhuan)換(huan)開關在(zai)(zai)(zai)交(jiao)(jiao)(jiao)、直流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)擋(dang)，量(liang)(liang)(liang)(liang)程在(zai)(zai)(zai)交(jiao)(jiao)(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)10V時(shi)(shi)，即讀此條(tiao)(tiao)刻(ke)(ke)度(du)(du)(du)線(xian)。第(di)(di)四條(tiao)(tiao)標(biao)有(you)(you)dB,指(zhi)示的(de)(de)(de)(de)(de)(de)(de)是(shi)(shi)(shi)音頻電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)平。?萬(wan)(wan)(wan)(wan)(wan)(wan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)是(shi)(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子測(ce)(ce)試領域基本的(de)(de)(de)(de)(de)(de)(de)工(gong)具，也(ye)是(shi)(shi)(shi)一(yi)種(zhong)(zhong)使(shi)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)廣泛的(de)(de)(de)(de)(de)(de)(de)測(ce)(ce)試儀(yi)器。萬(wan)(wan)(wan)(wan)(wan)(wan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)又叫多(duo)(duo)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)、三(san)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(A,V,Ω也(ye)即電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)三(san)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)）、復用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)、萬(wan)(wan)(wan)(wan)(wan)(wan)能(neng)(neng)(neng)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)，萬(wan)(wan)(wan)(wan)(wan)(wan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)分為(wei)指(zhi)針式(shi)萬(wan)(wan)(wan)(wan)(wan)(wan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)和(he)數(shu)字萬(wan)(wan)(wan)(wan)(wan)(wan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)，還有(you)(you)一(yi)種(zhong)(zhong)帶示波(bo)器功能(neng)(neng)(neng)的(de)(de)(de)(de)(de)(de)(de)示波(bo)萬(wan)(wan)(wan)(wan)(wan)(wan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)，是(shi)(shi)(shi)一(yi)種(zhong)(zhong)多(duo)(duo)功能(neng)(neng)(neng)、多(duo)(duo)量(liang)(liang)(liang)(liang)程的(de)(de)(de)(de)(de)(de)(de)測(ce)(ce)量(liang)(liang)(liang)(liang)儀(yi)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)。一(yi)般萬(wan)(wan)(wan)(wan)(wan)(wan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)可(ke)(ke)測(ce)(ce)量(liang)(liang)(liang)(liang)直流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)、直流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)、交(jiao)(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)壓(ya)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)和(he)音頻電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)平等(deng)(deng)(deng)(deng)，有(you)(you)的(de)(de)(de)(de)(de)(de)(de)還可(ke)(ke)以(yi)測(ce)(ce)交(jiao)(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)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容量(liang)(liang)(liang)(liang)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)感量(liang)(liang)(liang)(liang)、溫度(du)(du)(du)及半(ban)導體（二(er)極(ji)(ji)(ji)(ji)管、三(san)極(ji)(ji)(ji)(ji)管）的(de)(de)(de)(de)(de)(de)(de)一(yi)些參(can)數(shu)。數(shu)字式(shi)萬(wan)(wan)(wan)(wan)(wan)(wan)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)已成為(wei)主流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)，已經取代模擬式(shi)儀(yi)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)。與(yu)(yu)模擬式(shi)儀(yi)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)相比，數(shu)字式(shi)儀(yi)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)靈(ling)敏度(du)(du)(du)高(gao)(gao)，精確度(du)(du)(du)高(gao)(gao)，顯示清(qing)晰，過(guo)載(zai)能(neng)(neng)(neng)力強，便于(yu)攜帶，使(shi)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)(yong)也(ye)更方便簡(jian)單(dan)。?
1、精確(que)度
儀表(biao)精(jing)確(que)度(du)(du)科稱精(jing)度(du)(du)，又稱準(zhun)確(que)度(du)(du)。精(jing)確(que)度(du)(du)和誤差(cha)(cha)可以說是孿(luan)生兄弟，因為有誤差(cha)(cha)的(de)存在，才有精(jing)確(que)度(du)(du)這個概念。儀表(biao)精(jing)確(que)度(du)(du)簡(jian)言之(zhi)就是儀表(biao)測(ce)量值接近真值的(de)準(zhun)確(que)程度(du)(du)，通常用相對百分(fen)誤差(cha)(cha)（也稱相對折合誤差(cha)(cha)）表(biao)示。
2、變差
變(bian)(bian)差是(shi)(shi)指儀(yi)表(biao)被(bei)測變(bian)(bian)量（可(ke)理解(jie)為(wei)(wei)輸入信號）多(duo)次(ci)從不(bu)同方向(xiang)(xiang)達到同一(yi)數值時，儀(yi)表(biao)指示值之間的(de)(de)大(da)差值，或者說(shuo)是(shi)(shi)儀(yi)表(biao)在外界條件不(bu)變(bian)(bian)的(de)(de)情況下，被(bei)測參數由小到大(da)變(bian)(bian)化(hua)(hua)（正向(xiang)(xiang)特性(xing)）和被(bei)測參數由大(da)到小變(bian)(bian)化(hua)(hua)（反向(xiang)(xiang)特性(xing)）不(bu)一(yi)致的(de)(de)程度，兩者之差即為(wei)(wei)儀(yi)表(biao)變(bian)(bian)差。
3、靈敏度
靈(ling)(ling)(ling)敏(min)度(du)(du)是指儀(yi)(yi)表(biao)(biao)對被(bei)測參數變化的(de)(de)(de)(de)靈(ling)(ling)(ling)敏(min)程度(du)(du)，或者說是對被(bei)測的(de)(de)(de)(de)量(liang)(liang)(liang)變化的(de)(de)(de)(de)反應能力，是在(zai)穩(wen)態(tai)下，輸出(chu)變化增量(liang)(liang)(liang)對輸入變化增量(liang)(liang)(liang)的(de)(de)(de)(de)比值：靈(ling)(ling)(ling)敏(min)度(du)(du)有(you)(you)時(shi)也(ye)稱“放大比”，也(ye)是儀(yi)(yi)表(biao)(biao)靜特性貼切線上各點的(de)(de)(de)(de)斜率。增加放大倍數可以提高儀(yi)(yi)表(biao)(biao)靈(ling)(ling)(ling)敏(min)度(du)(du)，單純(chun)加大靈(ling)(ling)(ling)敏(min)度(du)(du)并不(bu)改變儀(yi)(yi)表(biao)(biao)的(de)(de)(de)(de)基本性能，即(ji)儀(yi)(yi)表(biao)(biao)精(jing)度(du)(du)并沒有(you)(you)提高，相反有(you)(you)時(shi)會出(chu)現振蕩現象，造成(cheng)輸出(chu)不(bu)穩(wen)定。儀(yi)(yi)表(biao)(biao)靈(ling)(ling)(ling)敏(min)度(du)(du)應保持適當的(de)(de)(de)(de)量(liang)(liang)(liang)。

WEIGEL備(bei)件BIEQ 72K 15min 3000/1A
WEIGEL電流表PQ96K MESSB.0-10V;SKALA 0-10A Ammeter
WEIGEL電(dian)壓(ya)表PQ96K
WEIGEL電壓表EQ72 0~500V
WEIGEL電流表(biao)EQ96-X 500/1A
WEIGEL電流表(biao)A1U2.2 INPUT：0-0.5A OUT：4-20mA 220V
WEIGEL備件WEG.PQ48K 0-40microA analog meter with moving-coil movement 90°
WEIGELDIGITAL VOLTMETERDMA14-31E20R-S1
WEIGEL電器件SHUNT 2500A/60MV/CLASS 0.5
WEIGEL功率因數變送器DUW2.1
WEIGEL備件(jian)Type: AU2.0 Nr: 21090803 0.5A48.62Hz 0.20mA
WEIGEL電流表EQ72K 50/100/5A
WEIGEL電流表E-1005-9021-00V cover for IP65
WEIGEL電(dian)(dian)流表(biao)0-1A電(dian)(dian)流表(biao) RW96MIN/MAX
WEIGEL表US-02 G/R 220VDC
WEIGEL安培表PQ72R 0-20MA
WEIGEL分流器SHUNT 60MV 10AKL 0.5 DIN43703，137-9061
WEIGEL表PQ48K
WEIGEL備件AU2.0 10 5 H0
WEIGEL備件EQ144K/1A/150A
WEIGEL電流表AMEQ72KLZS001
WEIGEL安(an)裝盤SHUNT ISO.PLATE LARGE 155X90X6MM， 870-93260（R021安(an)裝盤）
WEIGEL傾角顯示屏(ping)DSA55-NS50/A2RW-12
WEIGEL電流(liu)表(biao)AMPQ72KDZS010
WEIGEL備件CAM39053 AB910097493 411.134.9291
WEIGEL備件WGL.PQ96K.0-10V.0500V_DC Analog meters with moving-coil movement measuring range 0…10 V DC scale 0…500 V linear accuracy class 1.5 according to DIN EN 60 051 PQ 96 K
WEIGEL備件BIEQ 72K 15min 3000/1A
WEIGEL電流表(biao)PQ96K MESSB.0-10V;SKALA 0-10A Ammeter
WEIGEL電(dian)壓表(biao)PQ96K
WEIGEL電壓表EQ72 0~500V
WEIGEL電流表EQ96-X 500/1A
WEIGEL電流(liu)表A1U2.2 INPUT：0-0.5A OUT：4-20mA 220V
WEIGEL備件WEG.PQ48K 0-40microA analog meter with moving-coil movement 90°
WEIGELDIGITAL VOLTMETERDMA14-31E20R-S1
WEIGEL電器件SHUNT 2500A/60MV/CLASS 0.5
WEIGEL功率因數變送器(qi)DUW2.1
WEIGEL備件Type: AU2.0 Nr: 21090803 0.5A48.62Hz 0.20mA
WEIGEL電(dian)流表EQ72K 50/100/5A
WEIGEL電流表(biao)E-1005-9021-00V cover for IP65
WEIGEL電流表(biao)0-1A電流表(biao) RW96MIN/MAX
WEIGEL表(biao)US-02 G/R 220VDC
WEIGEL安培表PQ72R 0-20MA
WEIGEL分(fen)流器SHUNT 60MV 10AKL 0.5 DIN43703，137-9061
WEIGEL表PQ48K
WEIGEL備件AU2.0 10 5 H0
WEIGEL電壓表PQ96K 10V 0-1500V
WEIGEL雙(shuang)指針(zhen)電壓表2EQ96/2 0-900/230V
WEIGEL電流表PQ96K +/-30VDC -+/-60mV/6;5kA
WEIGEL備件(jian)WQ96/2S
WEIGEL電流表(biao)AMPQ72KDZS012 4-20mA Skala: 0-300A
WEIGEL備(bei)件(jian)DAS10-40PQR SR.943622-003
WEIGEL備件114-50HZ-230V DRAWING NO:0130-S SN:294033
WEIGEL滑差表SY96S
WEIGEL電流表EQ96K 5/10A
WEIGEL顯(xian)示器DAS10-40P1R S-NR:1040128-002
WEIGEL分流(liu)器(qi)869.7330.1.150A.60mV
WEIGEL備件Type: VQ72K 0-750V Production ID: 1TNS08030129R1
WEIGEL檢測(ce)表DSA13-NP40/CIR-07
WEIGEL備件(jian)DSA13-NA50/AIRR-02
WEIGEL傳感(gan)器PQ96K 60-0-60mv
WEIGEL豎式指針(zhen)(zhen)表MP48X96K(4~20mA 帶(dai)零(ling)位調(diao)整） 96mm×48mm豎式指針(zhen)(zhen)表
WEIGEL電壓表PSQ72 Msuring range DC 0-2000V WINDOWS
WEIGEL備件AU2.0 Input: 0...1A Output: 0...20mA
WEIGEL儀表PQ96 60-0-60MV
WEIGEL分(fen)流器(qi)shunt-150mV-1000A-0.5
WEIGEL變送器VIU2.2 輸(shu)入(ru)0-115V 48-62HZ 輸(shu)出(chu)4-20MA 工作電源Vh195-293v
WEIGEL備件LSP96K 4-20mA 90×90mm
WEIGEL備件EQ96K 0-1A=》0-800A
WEIGEL分流器800.4418.S.C18.5KA.30mV
WEIGEL備件VUE2.2 0-500V 4-20MA 220V
WEIGEL顯示器DAS10-40P1R S-Nr.943622-003
WEIGEL編碼器5.71 VDC 0-400A 刻(ke)度0-240度 0.424005671
WEIGEL電流表PQ96K MESSB.0-10V;SKALA 0-20A Ammeter
WEIGEL備(bei)件LSP144
WEIGEL分(fen)流器SHUNT 6000A/75mV
WEIGEL電表GQ96RS(3-15kV) 11.5 kv / 110 v
WEIGEL電壓變送器電壓變送器/V1U2.0
WEIGEL分流器8000A/60MV
WEIGEL備件TUA2.2
WEIGELAmmeterEQ72K 150/5A
WEIGEL備件EQ144K/100V/750V
WEIGEL電流(liu)表PQ96K measurement 0-100%
WEIGEL雙指針表PSQ48 4-20mA.DC（帶調零裝置）90°Analog indicator 2 coils 雙指針表
WEIGEL傳感(gan)器PQ48RS
WEIGEL續電器RP96
WEIGEL表EQ48K 0-250/500MA
WEIGEL傳感器PQ96K 40-0-40mv
WEIGEL電流表EQ96K 1/2A
WEIGEL電流表EQ96K 100/5A
WEIGEL電流表(biao)電流表(biao) PQ 48K 4-20mA
WEIGEL電流互(hu)感器(qi)C.T 2500/5A 15VA CL.1 P/N:ASK101.4 REF:MBS
WEIGEL分(fen)流器KL0.5，2000Amp/150MV
WEIGEL分流(liu)器shunt 8kA/60mV
WEIGEL表RW96MIN/MAX MA AC UH230V AC 0-1 A
WEIGEL功(gong)率轉(zhuan)換器(qi)V1U2.2 0..120V(48..62hz) 4-20mA
WEIGEL表(biao)250V
WEIGEL電流(liu)表EQ96-X CT 300/5A scale 0—300A 2倍過載 無紅線
萬用表(biao)(biao)又稱為(wei)復用表(biao)(biao)、多用表(biao)(biao)、三用表(biao)(biao)、繁用表(biao)(biao)等(deng)，是電力電子(zi)等(deng)部門*的測(ce)(ce)量儀表(biao)(biao)，一(yi)般以測(ce)(ce)量電壓、電流(liu)和電阻為(wei)主要(yao)目的。萬用表(biao)(biao)按顯示(shi)方(fang)式分為(wei)指針萬用表(biao)(biao)和數(shu)字(zi)萬用表(biao)(biao)。是一(yi)種(zhong)多功能、多量程的測(ce)(ce)量儀表(biao)(biao)，一(yi)般萬用表(biao)(biao)可測(ce)(ce)量直流(liu)電流(liu)、直流(liu)電壓、交流(liu)電流(liu)、交流(liu)電壓、電阻和音頻電平等(deng)，有(you)的還可以測(ce)(ce)交流(liu)電流(liu)、電容量、電感量及半導體的一(yi)些參數(shu)（如β）等(deng)。
磁(ci)(ci)(ci)(ci)電(dian)(dian)(dian)(dian)系電(dian)(dian)(dian)(dian)工儀(yi)(yi)表(biao)(biao)(biao)(biao)(biao)的(de)(de)(de)(de)(de)(de)(de)(de)測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)機構是(shi)(shi)由(you)固(gu)定的(de)(de)(de)(de)(de)(de)(de)(de)磁(ci)(ci)(ci)(ci)路系統和可(ke)動部(bu)(bu)分(fen)組(zu)成(cheng)的(de)(de)(de)(de)(de)(de)(de)(de)。儀(yi)(yi)表(biao)(biao)(biao)(biao)(biao)的(de)(de)(de)(de)(de)(de)(de)(de)磁(ci)(ci)(ci)(ci)路系統包(bao)括永磁(ci)(ci)(ci)(ci)鐵(tie)1，固(gu)定在(zai)(zai)(zai)磁(ci)(ci)(ci)(ci)鐵(tie)兩極(ji)(ji)(ji)的(de)(de)(de)(de)(de)(de)(de)(de)極(ji)(ji)(ji)掌(zhang)(zhang)2以(yi)(yi)及處于(yu)(yu)兩個(ge)極(ji)(ji)(ji)掌(zhang)(zhang)之(zhi)間(jian)的(de)(de)(de)(de)(de)(de)(de)(de)圓柱形鐵(tie)芯3。圓柱形鐵(tie)芯固(gu)定在(zai)(zai)(zai)儀(yi)(yi)表(biao)(biao)(biao)(biao)(biao)支(zhi)架(jia)上，用(yong)(yong)(yong)來減小磁(ci)(ci)(ci)(ci)阻，并使極(ji)(ji)(ji)掌(zhang)(zhang)和鐵(tie)芯間(jian)的(de)(de)(de)(de)(de)(de)(de)(de)空氣隙中(zhong)產生(sheng)均勻的(de)(de)(de)(de)(de)(de)(de)(de)輻射形磁(ci)(ci)(ci)(ci)場。處在(zai)(zai)(zai)這個(ge)磁(ci)(ci)(ci)(ci)場中(zhong)的(de)(de)(de)(de)(de)(de)(de)(de)可(ke)動線(xian)(xian)圈(quan)4繞轉(zhuan)(zhuan)軸(zhou)偏(pian)轉(zhuan)(zhuan)時，兩個(ge)有(you)(you)(you)(you)效邊上的(de)(de)(de)(de)(de)(de)(de)(de)磁(ci)(ci)(ci)(ci)場也(ye)(ye)總(zong)是(shi)(shi)大(da)小相(xiang)等(deng)，并且方(fang)(fang)向是(shi)(shi)與線(xian)(xian)圈(quan)邊相(xiang)互(hu)垂直(zhi)的(de)(de)(de)(de)(de)(de)(de)(de)。可(ke)動線(xian)(xian)圈(quan)繞在(zai)(zai)(zai)鋁框(kuang)上。轉(zhuan)(zhuan)軸(zhou)分(fen)成(cheng)前后兩部(bu)(bu)分(fen)，每個(ge)半(ban)(ban)軸(zhou)的(de)(de)(de)(de)(de)(de)(de)(de)一(yi)(yi)(yi)(yi)端固(gu)定在(zai)(zai)(zai)動圈(quan)鋁框(kuang)上，另一(yi)(yi)(yi)(yi)端則(ze)通過軸(zhou)尖支(zhi)撐于(yu)(yu)軸(zhou)承中(zhong)。在(zai)(zai)(zai)前半(ban)(ban)軸(zhou)還(huan)裝(zhuang)有(you)(you)(you)(you)指(zhi)(zhi)針，當(dang)可(ke)動部(bu)(bu)分(fen)偏(pian)轉(zhuan)(zhuan)時，用(yong)(yong)(yong)來指(zhi)(zhi)示(shi)(shi)被測(ce)(ce)(ce)(ce)電(dian)(dian)(dian)(dian)量(liang)(liang)(liang)(liang)的(de)(de)(de)(de)(de)(de)(de)(de)大(da)小。萬(wan)(wan)(wan)(wan)用(yong)(yong)(yong)表(biao)(biao)(biao)(biao)(biao)是(shi)(shi)一(yi)(yi)(yi)(yi)種帶有(you)(you)(you)(you)整流(liu)(liu)(liu)(liu)(liu)(liu)器(qi)的(de)(de)(de)(de)(de)(de)(de)(de)、可(ke)以(yi)(yi)測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)交(jiao)(jiao)(jiao)、直(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)、電(dian)(dian)(dian)(dian)壓(ya)及電(dian)(dian)(dian)(dian)阻等(deng)多(duo)(duo)(duo)種電(dian)(dian)(dian)(dian)學參(can)量(liang)(liang)(liang)(liang)的(de)(de)(de)(de)(de)(de)(de)(de)磁(ci)(ci)(ci)(ci)電(dian)(dian)(dian)(dian)式(shi)儀(yi)(yi)表(biao)(biao)(biao)(biao)(biao)。對于(yu)(yu)每一(yi)(yi)(yi)(yi)種電(dian)(dian)(dian)(dian)學量(liang)(liang)(liang)(liang),一(yi)(yi)(yi)(yi)般(ban)都有(you)(you)(you)(you)幾(ji)個(ge)量(liang)(liang)(liang)(liang)程(cheng)(cheng)(cheng)。又稱多(duo)(duo)(duo)用(yong)(yong)(yong)電(dian)(dian)(dian)(dian)表(biao)(biao)(biao)(biao)(biao)或(huo)簡稱多(duo)(duo)(duo)用(yong)(yong)(yong)表(biao)(biao)(biao)(biao)(biao)。萬(wan)(wan)(wan)(wan)用(yong)(yong)(yong)表(biao)(biao)(biao)(biao)(biao)是(shi)(shi)由(you)磁(ci)(ci)(ci)(ci)電(dian)(dian)(dian)(dian)系電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)(表(biao)(biao)(biao)(biao)(biao)頭(tou)(tou)(tou)(tou)(tou)),測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)電(dian)(dian)(dian)(dian)路和選(xuan)擇開(kai)關(guan)等(deng)組(zu)成(cheng)的(de)(de)(de)(de)(de)(de)(de)(de)。通過選(xuan)擇開(kai)關(guan)的(de)(de)(de)(de)(de)(de)(de)(de)變換(huan)(huan),可(ke)方(fang)(fang)便地對多(duo)(duo)(duo)種電(dian)(dian)(dian)(dian)學參(can)量(liang)(liang)(liang)(liang)進行(xing)測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)。其(qi)(qi)電(dian)(dian)(dian)(dian)路計算(suan)的(de)(de)(de)(de)(de)(de)(de)(de)主(zhu)要(yao)(yao)依據是(shi)(shi)閉合(he)電(dian)(dian)(dian)(dian)路歐(ou)姆定律。萬(wan)(wan)(wan)(wan)用(yong)(yong)(yong)表(biao)(biao)(biao)(biao)(biao)種類很(hen)多(duo)(duo)(duo),使用(yong)(yong)(yong)時應根據不同的(de)(de)(de)(de)(de)(de)(de)(de)要(yao)(yao)求(qiu)進行(xing)選(xuan)擇。萬(wan)(wan)(wan)(wan)用(yong)(yong)(yong)表(biao)(biao)(biao)(biao)(biao)由(you)表(biao)(biao)(biao)(biao)(biao)頭(tou)(tou)(tou)(tou)(tou)、測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)電(dian)(dian)(dian)(dian)路及轉(zhuan)(zhuan)換(huan)(huan)開(kai)關(guan)等(deng)三(san)(san)個(ge)主(zhu)要(yao)(yao)部(bu)(bu)分(fen)組(zu)成(cheng)。是(shi)(shi)一(yi)(yi)(yi)(yi)只(zhi)高(gao)(gao)靈敏(min)度的(de)(de)(de)(de)(de)(de)(de)(de)磁(ci)(ci)(ci)(ci)電(dian)(dian)(dian)(dian)式(shi)直(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)，萬(wan)(wan)(wan)(wan)用(yong)(yong)(yong)表(biao)(biao)(biao)(biao)(biao)的(de)(de)(de)(de)(de)(de)(de)(de)主(zhu)要(yao)(yao)性能(neng)(neng)指(zhi)(zhi)標(biao)基(ji)本上取決(jue)于(yu)(yu)表(biao)(biao)(biao)(biao)(biao)頭(tou)(tou)(tou)(tou)(tou)的(de)(de)(de)(de)(de)(de)(de)(de)性能(neng)(neng)。表(biao)(biao)(biao)(biao)(biao)頭(tou)(tou)(tou)(tou)(tou)的(de)(de)(de)(de)(de)(de)(de)(de)靈敏(min)度是(shi)(shi)指(zhi)(zhi)表(biao)(biao)(biao)(biao)(biao)頭(tou)(tou)(tou)(tou)(tou)指(zhi)(zhi)針滿(man)刻(ke)度偏(pian)轉(zhuan)(zhuan)時流(liu)(liu)(liu)(liu)(liu)(liu)過表(biao)(biao)(biao)(biao)(biao)頭(tou)(tou)(tou)(tou)(tou)的(de)(de)(de)(de)(de)(de)(de)(de)直(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)值(zhi)，這個(ge)值(zhi)越(yue)小，表(biao)(biao)(biao)(biao)(biao)頭(tou)(tou)(tou)(tou)(tou)的(de)(de)(de)(de)(de)(de)(de)(de)靈敏(min)度愈高(gao)(gao)。測(ce)(ce)(ce)(ce)電(dian)(dian)(dian)(dian)壓(ya)時的(de)(de)(de)(de)(de)(de)(de)(de)內阻越(yue)大(da)，其(qi)(qi)性能(neng)(neng)就越(yue)好。表(biao)(biao)(biao)(biao)(biao)頭(tou)(tou)(tou)(tou)(tou)上有(you)(you)(you)(you)四條(tiao)(tiao)刻(ke)度線(xian)(xian)，它(ta)們(men)的(de)(de)(de)(de)(de)(de)(de)(de)功(gong)能(neng)(neng)如下(xia)：第(di)一(yi)(yi)(yi)(yi)條(tiao)(tiao)（從上到下(xia)）標(biao)有(you)(you)(you)(you)R或(huo)Ω，指(zhi)(zhi)示(shi)(shi)的(de)(de)(de)(de)(de)(de)(de)(de)是(shi)(shi)電(dian)(dian)(dian)(dian)阻值(zhi)，轉(zhuan)(zhuan)換(huan)(huan)開(kai)關(guan)在(zai)(zai)(zai)歐(ou)姆擋(dang)時，即讀此(ci)(ci)條(tiao)(tiao)刻(ke)度線(xian)(xian)。第(di)二條(tiao)(tiao)標(biao)有(you)(you)(you)(you)∽和VA,指(zhi)(zhi)示(shi)(shi)的(de)(de)(de)(de)(de)(de)(de)(de)是(shi)(shi)交(jiao)(jiao)(jiao)、直(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)壓(ya)和直(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)值(zhi)，當(dang)轉(zhuan)(zhuan)換(huan)(huan)開(kai)關(guan)在(zai)(zai)(zai)交(jiao)(jiao)(jiao)、直(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)壓(ya)或(huo)直(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)擋(dang)，量(liang)(liang)(liang)(liang)程(cheng)(cheng)(cheng)在(zai)(zai)(zai)除交(jiao)(jiao)(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)10V以(yi)(yi)外的(de)(de)(de)(de)(de)(de)(de)(de)其(qi)(qi)它(ta)位(wei)置時，即讀此(ci)(ci)條(tiao)(tiao)刻(ke)度線(xian)(xian)。第(di)三(san)(san)條(tiao)(tiao)標(biao)有(you)(you)(you)(you)10V,指(zhi)(zhi)示(shi)(shi)的(de)(de)(de)(de)(de)(de)(de)(de)是(shi)(shi)10V的(de)(de)(de)(de)(de)(de)(de)(de)交(jiao)(jiao)(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)壓(ya)值(zhi)，當(dang)轉(zhuan)(zhuan)換(huan)(huan)開(kai)關(guan)在(zai)(zai)(zai)交(jiao)(jiao)(jiao)、直(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)壓(ya)擋(dang)，量(liang)(liang)(liang)(liang)程(cheng)(cheng)(cheng)在(zai)(zai)(zai)交(jiao)(jiao)(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)10V時，即讀此(ci)(ci)條(tiao)(tiao)刻(ke)度線(xian)(xian)。第(di)四條(tiao)(tiao)標(biao)有(you)(you)(you)(you)dB,指(zhi)(zhi)示(shi)(shi)的(de)(de)(de)(de)(de)(de)(de)(de)是(shi)(shi)音頻電(dian)(dian)(dian)(dian)平。?萬(wan)(wan)(wan)(wan)用(yong)(yong)(yong)表(biao)(biao)(biao)(biao)(biao)是(shi)(shi)電(dian)(dian)(dian)(dian)子(zi)測(ce)(ce)(ce)(ce)試領域基(ji)本的(de)(de)(de)(de)(de)(de)(de)(de)工具，也(ye)(ye)是(shi)(shi)一(yi)(yi)(yi)(yi)種使用(yong)(yong)(yong)廣泛的(de)(de)(de)(de)(de)(de)(de)(de)測(ce)(ce)(ce)(ce)試儀(yi)(yi)器(qi)。萬(wan)(wan)(wan)(wan)用(yong)(yong)(yong)表(biao)(biao)(biao)(biao)(biao)又叫多(duo)(duo)(duo)用(yong)(yong)(yong)表(biao)(biao)(biao)(biao)(biao)、三(san)(san)用(yong)(yong)(yong)表(biao)(biao)(biao)(biao)(biao)(A,V,Ω也(ye)(ye)即電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)，電(dian)(dian)(dian)(dian)壓(ya)，電(dian)(dian)(dian)(dian)阻三(san)(san)用(yong)(yong)(yong)）、復用(yong)(yong)(yong)表(biao)(biao)(biao)(biao)(biao)、萬(wan)(wan)(wan)(wan)能(neng)(neng)表(biao)(biao)(biao)(biao)(biao)，萬(wan)(wan)(wan)(wan)用(yong)(yong)(yong)表(biao)(biao)(biao)(biao)(biao)分(fen)為(wei)指(zhi)(zhi)針式(shi)萬(wan)(wan)(wan)(wan)用(yong)(yong)(yong)表(biao)(biao)(biao)(biao)(biao)和數(shu)字(zi)萬(wan)(wan)(wan)(wan)用(yong)(yong)(yong)表(biao)(biao)(biao)(biao)(biao)，還(huan)有(you)(you)(you)(you)一(yi)(yi)(yi)(yi)種帶示(shi)(shi)波(bo)器(qi)功(gong)能(neng)(neng)的(de)(de)(de)(de)(de)(de)(de)(de)示(shi)(shi)波(bo)萬(wan)(wan)(wan)(wan)用(yong)(yong)(yong)表(biao)(biao)(biao)(biao)(biao)，是(shi)(shi)一(yi)(yi)(yi)(yi)種多(duo)(duo)(duo)功(gong)能(neng)(neng)、多(duo)(duo)(duo)量(liang)(liang)(liang)(liang)程(cheng)(cheng)(cheng)的(de)(de)(de)(de)(de)(de)(de)(de)測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)儀(yi)(yi)表(biao)(biao)(biao)(biao)(biao)。一(yi)(yi)(yi)(yi)般(ban)萬(wan)(wan)(wan)(wan)用(yong)(yong)(yong)表(biao)(biao)(biao)(biao)(biao)可(ke)測(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)直(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)、直(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)壓(ya)、交(jiao)(jiao)(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)壓(ya)、電(dian)(dian)(dian)(dian)阻和音頻電(dian)(dian)(dian)(dian)平等(deng)，有(you)(you)(you)(you)的(de)(de)(de)(de)(de)(de)(de)(de)還(huan)可(ke)以(yi)(yi)測(ce)(ce)(ce)(ce)交(jiao)(jiao)(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)、電(dian)(dian)(dian)(dian)容量(liang)(liang)(liang)(liang)、電(dian)(dian)(dian)(dian)感量(liang)(liang)(liang)(liang)、溫(wen)度及半(ban)(ban)導體（二極(ji)(ji)(ji)管、三(san)(san)極(ji)(ji)(ji)管）的(de)(de)(de)(de)(de)(de)(de)(de)一(yi)(yi)(yi)(yi)些(xie)參(can)數(shu)。數(shu)字(zi)式(shi)萬(wan)(wan)(wan)(wan)用(yong)(yong)(yong)表(biao)(biao)(biao)(biao)(biao)已成(cheng)為(wei)主(zhu)流(liu)(liu)(liu)(liu)(liu)(liu)，已經取代模擬式(shi)儀(yi)(yi)表(biao)(biao)(biao)(biao)(biao)。與模擬式(shi)儀(yi)(yi)表(biao)(biao)(biao)(biao)(biao)相(xiang)比，數(shu)字(zi)式(shi)儀(yi)(yi)表(biao)(biao)(biao)(biao)(biao)靈敏(min)度高(gao)(gao)，精(jing)確度高(gao)(gao)，顯示(shi)(shi)清晰，過載能(neng)(neng)力強，便于(yu)(yu)攜帶，使用(yong)(yong)(yong)也(ye)(ye)更(geng)方(fang)(fang)便簡單。?
1、精確度
儀(yi)表(biao)(biao)精確(que)(que)度科稱精度，又稱準(zhun)確(que)(que)度。精確(que)(que)度和(he)誤(wu)(wu)差可以(yi)說是孿生兄弟(di)，因為有誤(wu)(wu)差的存在，才有精確(que)(que)度這(zhe)個概念。儀(yi)表(biao)(biao)精確(que)(que)度簡言(yan)之就是儀(yi)表(biao)(biao)測量值(zhi)(zhi)接近真值(zhi)(zhi)的準(zhun)確(que)(que)程度，通常用相(xiang)(xiang)對百分誤(wu)(wu)差（也稱相(xiang)(xiang)對折合誤(wu)(wu)差）表(biao)(biao)示。
2、變差(cha)
變(bian)(bian)差(cha)是指儀(yi)(yi)(yi)表(biao)被測變(bian)(bian)量(liang)（可理解為輸入(ru)信號）多(duo)次從不(bu)同方向達到(dao)(dao)同一數(shu)值(zhi)時，儀(yi)(yi)(yi)表(biao)指示值(zhi)之間的大(da)差(cha)值(zhi)，或(huo)者說是儀(yi)(yi)(yi)表(biao)在(zai)外界條件不(bu)變(bian)(bian)的情況下，被測參數(shu)由(you)小(xiao)到(dao)(dao)大(da)變(bian)(bian)化（正向特性）和被測參數(shu)由(you)大(da)到(dao)(dao)小(xiao)變(bian)(bian)化（反向特性）不(bu)一致的程(cheng)度(du)，兩者之差(cha)即為儀(yi)(yi)(yi)表(biao)變(bian)(bian)差(cha)。
3、靈敏度
靈(ling)(ling)敏(min)(min)度(du)是(shi)指儀(yi)(yi)表(biao)對被(bei)測參數(shu)變(bian)(bian)化(hua)(hua)的(de)(de)靈(ling)(ling)敏(min)(min)程(cheng)度(du)，或者說是(shi)對被(bei)測的(de)(de)量變(bian)(bian)化(hua)(hua)的(de)(de)反應能(neng)力，是(shi)在穩(wen)(wen)態(tai)下，輸出變(bian)(bian)化(hua)(hua)增量對輸入變(bian)(bian)化(hua)(hua)增量的(de)(de)比值：靈(ling)(ling)敏(min)(min)度(du)有時(shi)也稱“放大(da)(da)比”，也是(shi)儀(yi)(yi)表(biao)靜特性(xing)貼切線(xian)上(shang)各點的(de)(de)斜率。增加放大(da)(da)倍數(shu)可(ke)以提高儀(yi)(yi)表(biao)靈(ling)(ling)敏(min)(min)度(du)，單(dan)純加大(da)(da)靈(ling)(ling)敏(min)(min)度(du)并不改變(bian)(bian)儀(yi)(yi)表(biao)的(de)(de)基本性(xing)能(neng)，即儀(yi)(yi)表(biao)精度(du)并沒(mei)有提高，相反有時(shi)會出現(xian)(xian)振蕩現(xian)(xian)象，造成輸出不穩(wen)(wen)定。儀(yi)(yi)表(biao)靈(ling)(ling)敏(min)(min)度(du)應保持適(shi)當的(de)(de)量。