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(wan)用(yong)(yong)(yong)(yong)表(biao)(biao)(biao)又(you)稱為(wei)復(fu)用(yong)(yong)(yong)(yong)表(biao)(biao)(biao)、多用(yong)(yong)(yong)(yong)表(biao)(biao)(biao)、三用(yong)(yong)(yong)(yong)表(biao)(biao)(biao)、繁用(yong)(yong)(yong)(yong)表(biao)(biao)(biao)等，是(shi)電(dian)(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)(dian)子等部(bu)門(men)*的測(ce)量(liang)(liang)儀(yi)表(biao)(biao)(biao)，一(yi)般以測(ce)量(liang)(liang)電(dian)(dian)(dian)(dian)(dian)(dian)壓、電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)和電(dian)(dian)(dian)(dian)(dian)(dian)阻為(wei)主要目(mu)的。萬(wan)用(yong)(yong)(yong)(yong)表(biao)(biao)(biao)按顯示方式(shi)分為(wei)指針萬(wan)用(yong)(yong)(yong)(yong)表(biao)(biao)(biao)和數字萬(wan)用(yong)(yong)(yong)(yong)表(biao)(biao)(biao)。是(shi)一(yi)種多功能(neng)、多量(liang)(liang)程的測(ce)量(liang)(liang)儀(yi)表(biao)(biao)(biao)，一(yi)般萬(wan)用(yong)(yong)(yong)(yong)表(biao)(biao)(biao)可測(ce)量(liang)(liang)直(zhi)流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)、直(zhi)流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)壓、交流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)、交流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)壓、電(dian)(dian)(dian)(dian)(dian)(dian)阻和音頻電(dian)(dian)(dian)(dian)(dian)(dian)平等，有的還可以測(ce)交流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)、電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)量(liang)(liang)、電(dian)(dian)(dian)(dian)(dian)(dian)感量(liang)(liang)及(ji)半導體的一(yi)些參數（如(ru)β）等。
磁(ci)(ci)(ci)(ci)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)系(xi)(xi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)工儀(yi)(yi)(yi)表(biao)(biao)(biao)(biao)(biao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)測(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)機構是(shi)(shi)(shi)由(you)固(gu)定(ding)(ding)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)磁(ci)(ci)(ci)(ci)路系(xi)(xi)統和(he)可(ke)動(dong)部(bu)分組(zu)成(cheng)(cheng)(cheng)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)。儀(yi)(yi)(yi)表(biao)(biao)(biao)(biao)(biao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)磁(ci)(ci)(ci)(ci)路系(xi)(xi)統包括永(yong)磁(ci)(ci)(ci)(ci)鐵1，固(gu)定(ding)(ding)在(zai)(zai)磁(ci)(ci)(ci)(ci)鐵兩(liang)極(ji)(ji)(ji)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)極(ji)(ji)(ji)掌(zhang)2以(yi)及處(chu)(chu)于兩(liang)個(ge)(ge)(ge)極(ji)(ji)(ji)掌(zhang)之間的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)圓柱形鐵芯3。圓柱形鐵芯固(gu)定(ding)(ding)在(zai)(zai)儀(yi)(yi)(yi)表(biao)(biao)(biao)(biao)(biao)支架上(shang)(shang)，用(yong)來(lai)減小磁(ci)(ci)(ci)(ci)阻(zu)(zu)，并使(shi)極(ji)(ji)(ji)掌(zhang)和(he)鐵芯間的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)空(kong)氣(qi)隙中產生均(jun)勻的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)輻射(she)形磁(ci)(ci)(ci)(ci)場。處(chu)(chu)在(zai)(zai)這個(ge)(ge)(ge)磁(ci)(ci)(ci)(ci)場中的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)可(ke)動(dong)線(xian)圈(quan)4繞轉(zhuan)軸(zhou)偏轉(zhuan)時(shi)，兩(liang)個(ge)(ge)(ge)有(you)(you)效邊上(shang)(shang)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)磁(ci)(ci)(ci)(ci)場也總(zong)是(shi)(shi)(shi)大(da)小相等(deng)，并且方向(xiang)是(shi)(shi)(shi)與線(xian)圈(quan)邊相互(hu)垂直(zhi)(zhi)(zhi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)。可(ke)動(dong)線(xian)圈(quan)繞在(zai)(zai)鋁框上(shang)(shang)。轉(zhuan)軸(zhou)分成(cheng)(cheng)(cheng)前后兩(liang)部(bu)分，每個(ge)(ge)(ge)半(ban)軸(zhou)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)一(yi)(yi)端(duan)固(gu)定(ding)(ding)在(zai)(zai)動(dong)圈(quan)鋁框上(shang)(shang)，另一(yi)(yi)端(duan)則(ze)通過軸(zhou)尖支撐于軸(zhou)承中。在(zai)(zai)前半(ban)軸(zhou)還裝有(you)(you)指針(zhen)，當(dang)可(ke)動(dong)部(bu)分偏轉(zhuan)時(shi)，用(yong)來(lai)指示(shi)(shi)被測(ce)(ce)(ce)(ce)(ce)電(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)大(da)小。萬(wan)(wan)用(yong)表(biao)(biao)(biao)(biao)(biao)是(shi)(shi)(shi)一(yi)(yi)種(zhong)(zhong)(zhong)帶(dai)有(you)(you)整流(liu)(liu)器的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)、可(ke)以(yi)測(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)交(jiao)、直(zhi)(zhi)(zhi)流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)及電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)等(deng)多(duo)(duo)(duo)種(zhong)(zhong)(zhong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)學(xue)參量(liang)(liang)(liang)(liang)(liang)(liang)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)式(shi)儀(yi)(yi)(yi)表(biao)(biao)(biao)(biao)(biao)。對(dui)(dui)于每一(yi)(yi)種(zhong)(zhong)(zhong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)學(xue)量(liang)(liang)(liang)(liang)(liang)(liang),一(yi)(yi)般都(dou)有(you)(you)幾個(ge)(ge)(ge)量(liang)(liang)(liang)(liang)(liang)(liang)程。又稱多(duo)(duo)(duo)用(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)(biao)(biao)或(huo)簡稱多(duo)(duo)(duo)用(yong)表(biao)(biao)(biao)(biao)(biao)。萬(wan)(wan)用(yong)表(biao)(biao)(biao)(biao)(biao)是(shi)(shi)(shi)由(you)磁(ci)(ci)(ci)(ci)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)系(xi)(xi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)表(biao)(biao)(biao)(biao)(biao)(表(biao)(biao)(biao)(biao)(biao)頭(tou)),測(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路和(he)選(xuan)(xuan)擇開關(guan)等(deng)組(zu)成(cheng)(cheng)(cheng)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)。通過選(xuan)(xuan)擇開關(guan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)變換,可(ke)方便地對(dui)(dui)多(duo)(duo)(duo)種(zhong)(zhong)(zhong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)學(xue)參量(liang)(liang)(liang)(liang)(liang)(liang)進行測(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)。其電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路計算(suan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)主要(yao)依(yi)據是(shi)(shi)(shi)閉合電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路歐姆(mu)定(ding)(ding)律。萬(wan)(wan)用(yong)表(biao)(biao)(biao)(biao)(biao)種(zhong)(zhong)(zhong)類很(hen)多(duo)(duo)(duo),使(shi)用(yong)時(shi)應根據不同的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)要(yao)求進行選(xuan)(xuan)擇。萬(wan)(wan)用(yong)表(biao)(biao)(biao)(biao)(biao)由(you)表(biao)(biao)(biao)(biao)(biao)頭(tou)、測(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路及轉(zhuan)換開關(guan)等(deng)三(san)(san)(san)個(ge)(ge)(ge)主要(yao)部(bu)分組(zu)成(cheng)(cheng)(cheng)。是(shi)(shi)(shi)一(yi)(yi)只(zhi)高靈敏度(du)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)式(shi)直(zhi)(zhi)(zhi)流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)表(biao)(biao)(biao)(biao)(biao)，萬(wan)(wan)用(yong)表(biao)(biao)(biao)(biao)(biao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)主要(yao)性(xing)能(neng)指標(biao)基(ji)本上(shang)(shang)取(qu)決于表(biao)(biao)(biao)(biao)(biao)頭(tou)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)性(xing)能(neng)。表(biao)(biao)(biao)(biao)(biao)頭(tou)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)靈敏度(du)是(shi)(shi)(shi)指表(biao)(biao)(biao)(biao)(biao)頭(tou)指針(zhen)滿(man)刻(ke)(ke)度(du)偏轉(zhuan)時(shi)流(liu)(liu)過表(biao)(biao)(biao)(biao)(biao)頭(tou)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)直(zhi)(zhi)(zhi)流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)值(zhi)(zhi)(zhi)，這個(ge)(ge)(ge)值(zhi)(zhi)(zhi)越小，表(biao)(biao)(biao)(biao)(biao)頭(tou)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)靈敏度(du)愈高。測(ce)(ce)(ce)(ce)(ce)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)時(shi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)內阻(zu)(zu)越大(da)，其性(xing)能(neng)就越好。表(biao)(biao)(biao)(biao)(biao)頭(tou)上(shang)(shang)有(you)(you)四條(tiao)(tiao)(tiao)(tiao)刻(ke)(ke)度(du)線(xian)，它(ta)們(men)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)功能(neng)如下：第一(yi)(yi)條(tiao)(tiao)(tiao)(tiao)（從上(shang)(shang)到下）標(biao)有(you)(you)R或(huo)Ω，指示(shi)(shi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)是(shi)(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)值(zhi)(zhi)(zhi)，轉(zhuan)換開關(guan)在(zai)(zai)歐姆(mu)擋(dang)時(shi)，即讀(du)此(ci)(ci)條(tiao)(tiao)(tiao)(tiao)刻(ke)(ke)度(du)線(xian)。第二條(tiao)(tiao)(tiao)(tiao)標(biao)有(you)(you)∽和(he)VA,指示(shi)(shi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)是(shi)(shi)(shi)交(jiao)、直(zhi)(zhi)(zhi)流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)和(he)直(zhi)(zhi)(zhi)流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)值(zhi)(zhi)(zhi)，當(dang)轉(zhuan)換開關(guan)在(zai)(zai)交(jiao)、直(zhi)(zhi)(zhi)流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)或(huo)直(zhi)(zhi)(zhi)流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)擋(dang)，量(liang)(liang)(liang)(liang)(liang)(liang)程在(zai)(zai)除交(jiao)流(liu)(liu)10V以(yi)外的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)其它(ta)位置時(shi)，即讀(du)此(ci)(ci)條(tiao)(tiao)(tiao)(tiao)刻(ke)(ke)度(du)線(xian)。第三(san)(san)(san)條(tiao)(tiao)(tiao)(tiao)標(biao)有(you)(you)10V,指示(shi)(shi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)是(shi)(shi)(shi)10V的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)交(jiao)流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)值(zhi)(zhi)(zhi)，當(dang)轉(zhuan)換開關(guan)在(zai)(zai)交(jiao)、直(zhi)(zhi)(zhi)流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)擋(dang)，量(liang)(liang)(liang)(liang)(liang)(liang)程在(zai)(zai)交(jiao)流(liu)(liu)10V時(shi)，即讀(du)此(ci)(ci)條(tiao)(tiao)(tiao)(tiao)刻(ke)(ke)度(du)線(xian)。第四條(tiao)(tiao)(tiao)(tiao)標(biao)有(you)(you)dB,指示(shi)(shi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)是(shi)(shi)(shi)音頻電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)平。?萬(wan)(wan)用(yong)表(biao)(biao)(biao)(biao)(biao)是(shi)(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子測(ce)(ce)(ce)(ce)(ce)試領域基(ji)本的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)工具，也是(shi)(shi)(shi)一(yi)(yi)種(zhong)(zhong)(zhong)使(shi)用(yong)廣泛的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)測(ce)(ce)(ce)(ce)(ce)試儀(yi)(yi)(yi)器。萬(wan)(wan)用(yong)表(biao)(biao)(biao)(biao)(biao)又叫多(duo)(duo)(duo)用(yong)表(biao)(biao)(biao)(biao)(biao)、三(san)(san)(san)用(yong)表(biao)(biao)(biao)(biao)(biao)(A,V,Ω也即電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)三(san)(san)(san)用(yong)）、復用(yong)表(biao)(biao)(biao)(biao)(biao)、萬(wan)(wan)能(neng)表(biao)(biao)(biao)(biao)(biao)，萬(wan)(wan)用(yong)表(biao)(biao)(biao)(biao)(biao)分為指針(zhen)式(shi)萬(wan)(wan)用(yong)表(biao)(biao)(biao)(biao)(biao)和(he)數(shu)字萬(wan)(wan)用(yong)表(biao)(biao)(biao)(biao)(biao)，還有(you)(you)一(yi)(yi)種(zhong)(zhong)(zhong)帶(dai)示(shi)(shi)波器功能(neng)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)示(shi)(shi)波萬(wan)(wan)用(yong)表(biao)(biao)(biao)(biao)(biao)，是(shi)(shi)(shi)一(yi)(yi)種(zhong)(zhong)(zhong)多(duo)(duo)(duo)功能(neng)、多(duo)(duo)(duo)量(liang)(liang)(liang)(liang)(liang)(liang)程的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)測(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)儀(yi)(yi)(yi)表(biao)(biao)(biao)(biao)(biao)。一(yi)(yi)般萬(wan)(wan)用(yong)表(biao)(biao)(biao)(biao)(biao)可(ke)測(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)(liang)(liang)直(zhi)(zhi)(zhi)流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)、直(zhi)(zhi)(zhi)流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)、交(jiao)流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)和(he)音頻電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)平等(deng)，有(you)(you)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)還可(ke)以(yi)測(ce)(ce)(ce)(ce)(ce)交(jiao)流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容量(liang)(liang)(liang)(liang)(liang)(liang)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)感量(liang)(liang)(liang)(liang)(liang)(liang)、溫度(du)及半(ban)導(dao)體(ti)（二極(ji)(ji)(ji)管、三(san)(san)(san)極(ji)(ji)(ji)管）的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)一(yi)(yi)些參數(shu)。數(shu)字式(shi)萬(wan)(wan)用(yong)表(biao)(biao)(biao)(biao)(biao)已成(cheng)(cheng)(cheng)為主流(liu)(liu)，已經取(qu)代模擬(ni)式(shi)儀(yi)(yi)(yi)表(biao)(biao)(biao)(biao)(biao)。與模擬(ni)式(shi)儀(yi)(yi)(yi)表(biao)(biao)(biao)(biao)(biao)相比，數(shu)字式(shi)儀(yi)(yi)(yi)表(biao)(biao)(biao)(biao)(biao)靈敏度(du)高，精(jing)確度(du)高，顯示(shi)(shi)清晰，過載能(neng)力強(qiang)，便于攜帶(dai)，使(shi)用(yong)也更方便簡單(dan)。?
1、精(jing)確(que)度
儀表精(jing)(jing)確(que)(que)度(du)科稱精(jing)(jing)度(du)，又稱準(zhun)確(que)(que)度(du)。精(jing)(jing)確(que)(que)度(du)和誤差可以(yi)說是孿生兄弟，因(yin)為有(you)誤差的存在，才(cai)有(you)精(jing)(jing)確(que)(que)度(du)這個(ge)概念。儀表精(jing)(jing)確(que)(que)度(du)簡(jian)言(yan)之就是儀表測量值接近(jin)真值的準(zhun)確(que)(que)程度(du)，通常(chang)用相(xiang)對(dui)百分誤差（也稱相(xiang)對(dui)折(zhe)合(he)誤差）表示(shi)。
2、變差
變差(cha)是指儀(yi)表被(bei)測變量（可理(li)解為輸入信號）多次從不(bu)同方向(xiang)達到同一數(shu)值時，儀(yi)表指示值之(zhi)間的(de)大差(cha)值，或者說是儀(yi)表在(zai)外界條(tiao)件不(bu)變的(de)情況下，被(bei)測參(can)數(shu)由(you)小(xiao)(xiao)到大變化(hua)（正向(xiang)特性）和被(bei)測參(can)數(shu)由(you)大到小(xiao)(xiao)變化(hua)（反向(xiang)特性）不(bu)一致的(de)程(cheng)度，兩(liang)者之(zhi)差(cha)即為儀(yi)表變差(cha)。
3、靈敏度
靈(ling)敏度(du)是(shi)指(zhi)儀(yi)表(biao)對被(bei)測(ce)參(can)數變(bian)化(hua)的(de)靈(ling)敏程(cheng)度(du)，或(huo)者說(shuo)是(shi)對被(bei)測(ce)的(de)量(liang)(liang)變(bian)化(hua)的(de)反應能力，是(shi)在穩態下，輸(shu)出(chu)變(bian)化(hua)增(zeng)量(liang)(liang)對輸(shu)入(ru)變(bian)化(hua)增(zeng)量(liang)(liang)的(de)比值：靈(ling)敏度(du)有時(shi)也稱“放大(da)比”，也是(shi)儀(yi)表(biao)靜特性貼切線(xian)上(shang)各點的(de)斜(xie)率。增(zeng)加(jia)放大(da)倍(bei)數可以提(ti)高儀(yi)表(biao)靈(ling)敏度(du)，單純加(jia)大(da)靈(ling)敏度(du)并不改變(bian)儀(yi)表(biao)的(de)基本性能，即儀(yi)表(biao)精度(du)并沒有提(ti)高，相反有時(shi)會(hui)出(chu)現(xian)振(zhen)蕩現(xian)象(xiang)，造成輸(shu)出(chu)不穩定。儀(yi)表(biao)靈(ling)敏度(du)應保持適當的(de)量(liang)(liang)。

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WEIGEL電流(liu)表(biao)PQ96K MESSB.0-10V;SKALA 0-10A Ammeter
WEIGEL電壓表PQ96K
WEIGEL電壓表EQ72 0~500V
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WEIGEL電流表EQ72K 50/100/5A
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WEIGEL電(dian)流(liu)表0-1A電(dian)流(liu)表 RW96MIN/MAX
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WEIGEL分流器(qi)SHUNT 60MV 10AKL 0.5 DIN43703，137-9061
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WEIGEL安裝(zhuang)盤SHUNT ISO.PLATE LARGE 155X90X6MM， 870-93260（R021安裝(zhuang)盤）
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WEIGEL備件(jian)BIEQ 72K 15min 3000/1A
WEIGEL電流表PQ96K MESSB.0-10V;SKALA 0-10A Ammeter
WEIGEL電壓表PQ96K
WEIGEL電壓(ya)表EQ72 0~500V
WEIGEL電流表EQ96-X 500/1A
WEIGEL電流表A1U2.2 INPUT：0-0.5A OUT：4-20mA 220V
WEIGEL備(bei)件WEG.PQ48K 0-40microA analog meter with moving-coil movement 90°
WEIGELDIGITAL VOLTMETERDMA14-31E20R-S1
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WEIGEL功率因數(shu)變送器DUW2.1
WEIGEL備件Type: AU2.0 Nr: 21090803 0.5A48.62Hz 0.20mA
WEIGEL電流(liu)表(biao)EQ72K 50/100/5A
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WEIGEL電流(liu)表(biao)0-1A電流(liu)表(biao) RW96MIN/MAX
WEIGEL表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
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WEIGEL電(dian)壓表PQ96K 10V 0-1500V
WEIGEL雙指針電(dian)壓表2EQ96/2 0-900/230V
WEIGEL電流表PQ96K +/-30VDC -+/-60mV/6;5kA
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WEIGEL滑差表SY96S
WEIGEL電流表EQ96K 5/10A
WEIGEL顯示器DAS10-40P1R S-NR:1040128-002
WEIGEL分流器869.7330.1.150A.60mV
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萬(wan)用表(biao)(biao)又稱為復用表(biao)(biao)、多用表(biao)(biao)、三(san)用表(biao)(biao)、繁(fan)用表(biao)(biao)等(deng)，是(shi)(shi)電(dian)(dian)(dian)力(li)電(dian)(dian)(dian)子等(deng)部(bu)門*的(de)(de)測量(liang)儀表(biao)(biao)，一般以測量(liang)電(dian)(dian)(dian)壓(ya)、電(dian)(dian)(dian)流(liu)(liu)和(he)電(dian)(dian)(dian)阻為主(zhu)要目(mu)的(de)(de)。萬(wan)用表(biao)(biao)按顯示方式(shi)分(fen)為指針萬(wan)用表(biao)(biao)和(he)數字(zi)萬(wan)用表(biao)(biao)。是(shi)(shi)一種(zhong)多功(gong)能、多量(liang)程的(de)(de)測量(liang)儀表(biao)(biao)，一般萬(wan)用表(biao)(biao)可(ke)測量(liang)直流(liu)(liu)電(dian)(dian)(dian)流(liu)(liu)、直流(liu)(liu)電(dian)(dian)(dian)壓(ya)、交流(liu)(liu)電(dian)(dian)(dian)流(liu)(liu)、交流(liu)(liu)電(dian)(dian)(dian)壓(ya)、電(dian)(dian)(dian)阻和(he)音頻電(dian)(dian)(dian)平等(deng)，有的(de)(de)還(huan)可(ke)以測交流(liu)(liu)電(dian)(dian)(dian)流(liu)(liu)、電(dian)(dian)(dian)容(rong)量(liang)、電(dian)(dian)(dian)感量(liang)及(ji)半導體的(de)(de)一些參數（如β）等(deng)。
磁(ci)(ci)電(dian)(dian)(dian)(dian)系電(dian)(dian)(dian)(dian)工儀(yi)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)的(de)(de)(de)(de)(de)(de)(de)(de)測(ce)(ce)(ce)量(liang)(liang)機構是(shi)(shi)由固定(ding)(ding)(ding)的(de)(de)(de)(de)(de)(de)(de)(de)磁(ci)(ci)路系統和可(ke)(ke)(ke)動(dong)部分(fen)(fen)(fen)(fen)組成(cheng)(cheng)的(de)(de)(de)(de)(de)(de)(de)(de)。儀(yi)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)的(de)(de)(de)(de)(de)(de)(de)(de)磁(ci)(ci)路系統包(bao)括(kuo)永(yong)磁(ci)(ci)鐵1，固定(ding)(ding)(ding)在(zai)(zai)磁(ci)(ci)鐵兩(liang)極(ji)的(de)(de)(de)(de)(de)(de)(de)(de)極(ji)掌(zhang)2以及處(chu)于(yu)兩(liang)個(ge)極(ji)掌(zhang)之間的(de)(de)(de)(de)(de)(de)(de)(de)圓柱形(xing)(xing)鐵芯(xin)3。圓柱形(xing)(xing)鐵芯(xin)固定(ding)(ding)(ding)在(zai)(zai)儀(yi)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)支架上，用(yong)(yong)(yong)(yong)(yong)來(lai)減小磁(ci)(ci)阻(zu)(zu)，并(bing)使極(ji)掌(zhang)和鐵芯(xin)間的(de)(de)(de)(de)(de)(de)(de)(de)空氣隙(xi)中產(chan)生均勻的(de)(de)(de)(de)(de)(de)(de)(de)輻射(she)形(xing)(xing)磁(ci)(ci)場。處(chu)在(zai)(zai)這個(ge)磁(ci)(ci)場中的(de)(de)(de)(de)(de)(de)(de)(de)可(ke)(ke)(ke)動(dong)線(xian)圈4繞轉(zhuan)(zhuan)(zhuan)軸(zhou)(zhou)偏(pian)(pian)(pian)轉(zhuan)(zhuan)(zhuan)時(shi)(shi)，兩(liang)個(ge)有(you)(you)(you)(you)效邊上的(de)(de)(de)(de)(de)(de)(de)(de)磁(ci)(ci)場也(ye)(ye)總是(shi)(shi)大(da)小相等(deng)(deng)(deng)(deng)，并(bing)且(qie)方(fang)向是(shi)(shi)與線(xian)圈邊相互(hu)垂直(zhi)(zhi)(zhi)的(de)(de)(de)(de)(de)(de)(de)(de)。可(ke)(ke)(ke)動(dong)線(xian)圈繞在(zai)(zai)鋁框上。轉(zhuan)(zhuan)(zhuan)軸(zhou)(zhou)分(fen)(fen)(fen)(fen)成(cheng)(cheng)前后兩(liang)部分(fen)(fen)(fen)(fen)，每(mei)個(ge)半軸(zhou)(zhou)的(de)(de)(de)(de)(de)(de)(de)(de)一(yi)(yi)端固定(ding)(ding)(ding)在(zai)(zai)動(dong)圈鋁框上，另一(yi)(yi)端則通(tong)過(guo)軸(zhou)(zhou)尖支撐于(yu)軸(zhou)(zhou)承中。在(zai)(zai)前半軸(zhou)(zhou)還(huan)裝有(you)(you)(you)(you)指(zhi)(zhi)(zhi)針，當可(ke)(ke)(ke)動(dong)部分(fen)(fen)(fen)(fen)偏(pian)(pian)(pian)轉(zhuan)(zhuan)(zhuan)時(shi)(shi)，用(yong)(yong)(yong)(yong)(yong)來(lai)指(zhi)(zhi)(zhi)示被測(ce)(ce)(ce)電(dian)(dian)(dian)(dian)量(liang)(liang)的(de)(de)(de)(de)(de)(de)(de)(de)大(da)小。萬(wan)(wan)(wan)(wan)(wan)用(yong)(yong)(yong)(yong)(yong)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)是(shi)(shi)一(yi)(yi)種(zhong)(zhong)帶有(you)(you)(you)(you)整流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器的(de)(de)(de)(de)(de)(de)(de)(de)、可(ke)(ke)(ke)以測(ce)(ce)(ce)量(liang)(liang)交(jiao)、直(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)、電(dian)(dian)(dian)(dian)壓及電(dian)(dian)(dian)(dian)阻(zu)(zu)等(deng)(deng)(deng)(deng)多種(zhong)(zhong)電(dian)(dian)(dian)(dian)學參量(liang)(liang)的(de)(de)(de)(de)(de)(de)(de)(de)磁(ci)(ci)電(dian)(dian)(dian)(dian)式(shi)(shi)儀(yi)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)。對(dui)于(yu)每(mei)一(yi)(yi)種(zhong)(zhong)電(dian)(dian)(dian)(dian)學量(liang)(liang),一(yi)(yi)般(ban)都有(you)(you)(you)(you)幾個(ge)量(liang)(liang)程。又稱多用(yong)(yong)(yong)(yong)(yong)電(dian)(dian)(dian)(dian)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)或(huo)簡(jian)稱多用(yong)(yong)(yong)(yong)(yong)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)。萬(wan)(wan)(wan)(wan)(wan)用(yong)(yong)(yong)(yong)(yong)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)是(shi)(shi)由磁(ci)(ci)電(dian)(dian)(dian)(dian)系電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)(表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)頭(tou)),測(ce)(ce)(ce)量(liang)(liang)電(dian)(dian)(dian)(dian)路和選(xuan)擇開(kai)關(guan)(guan)等(deng)(deng)(deng)(deng)組成(cheng)(cheng)的(de)(de)(de)(de)(de)(de)(de)(de)。通(tong)過(guo)選(xuan)擇開(kai)關(guan)(guan)的(de)(de)(de)(de)(de)(de)(de)(de)變換,可(ke)(ke)(ke)方(fang)便地對(dui)多種(zhong)(zhong)電(dian)(dian)(dian)(dian)學參量(liang)(liang)進(jin)行測(ce)(ce)(ce)量(liang)(liang)。其電(dian)(dian)(dian)(dian)路計算的(de)(de)(de)(de)(de)(de)(de)(de)主(zhu)要依據(ju)是(shi)(shi)閉合電(dian)(dian)(dian)(dian)路歐(ou)姆定(ding)(ding)(ding)律。萬(wan)(wan)(wan)(wan)(wan)用(yong)(yong)(yong)(yong)(yong)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)種(zhong)(zhong)類很多,使用(yong)(yong)(yong)(yong)(yong)時(shi)(shi)應根據(ju)不同的(de)(de)(de)(de)(de)(de)(de)(de)要求進(jin)行選(xuan)擇。萬(wan)(wan)(wan)(wan)(wan)用(yong)(yong)(yong)(yong)(yong)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)由表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)頭(tou)、測(ce)(ce)(ce)量(liang)(liang)電(dian)(dian)(dian)(dian)路及轉(zhuan)(zhuan)(zhuan)換開(kai)關(guan)(guan)等(deng)(deng)(deng)(deng)三(san)個(ge)主(zhu)要部分(fen)(fen)(fen)(fen)組成(cheng)(cheng)。是(shi)(shi)一(yi)(yi)只高(gao)(gao)靈(ling)敏(min)度(du)(du)的(de)(de)(de)(de)(de)(de)(de)(de)磁(ci)(ci)電(dian)(dian)(dian)(dian)式(shi)(shi)直(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)，萬(wan)(wan)(wan)(wan)(wan)用(yong)(yong)(yong)(yong)(yong)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)的(de)(de)(de)(de)(de)(de)(de)(de)主(zhu)要性(xing)能指(zhi)(zhi)(zhi)標(biao)基本上取決(jue)于(yu)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)頭(tou)的(de)(de)(de)(de)(de)(de)(de)(de)性(xing)能。表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)頭(tou)的(de)(de)(de)(de)(de)(de)(de)(de)靈(ling)敏(min)度(du)(du)是(shi)(shi)指(zhi)(zhi)(zhi)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)頭(tou)指(zhi)(zhi)(zhi)針滿刻(ke)度(du)(du)偏(pian)(pian)(pian)轉(zhuan)(zhuan)(zhuan)時(shi)(shi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)過(guo)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)頭(tou)的(de)(de)(de)(de)(de)(de)(de)(de)直(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)值(zhi)(zhi)，這個(ge)值(zhi)(zhi)越(yue)小，表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)頭(tou)的(de)(de)(de)(de)(de)(de)(de)(de)靈(ling)敏(min)度(du)(du)愈高(gao)(gao)。測(ce)(ce)(ce)電(dian)(dian)(dian)(dian)壓時(shi)(shi)的(de)(de)(de)(de)(de)(de)(de)(de)內(nei)阻(zu)(zu)越(yue)大(da)，其性(xing)能就(jiu)越(yue)好。表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)頭(tou)上有(you)(you)(you)(you)四條(tiao)(tiao)刻(ke)度(du)(du)線(xian)，它們的(de)(de)(de)(de)(de)(de)(de)(de)功(gong)能如下(xia)：第一(yi)(yi)條(tiao)(tiao)（從上到(dao)下(xia)）標(biao)有(you)(you)(you)(you)R或(huo)Ω，指(zhi)(zhi)(zhi)示的(de)(de)(de)(de)(de)(de)(de)(de)是(shi)(shi)電(dian)(dian)(dian)(dian)阻(zu)(zu)值(zhi)(zhi)，轉(zhuan)(zhuan)(zhuan)換開(kai)關(guan)(guan)在(zai)(zai)歐(ou)姆擋時(shi)(shi)，即讀此(ci)條(tiao)(tiao)刻(ke)度(du)(du)線(xian)。第二(er)(er)條(tiao)(tiao)標(biao)有(you)(you)(you)(you)∽和VA,指(zhi)(zhi)(zhi)示的(de)(de)(de)(de)(de)(de)(de)(de)是(shi)(shi)交(jiao)、直(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)壓和直(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)值(zhi)(zhi)，當轉(zhuan)(zhuan)(zhuan)換開(kai)關(guan)(guan)在(zai)(zai)交(jiao)、直(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)壓或(huo)直(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)擋，量(liang)(liang)程在(zai)(zai)除交(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)10V以外的(de)(de)(de)(de)(de)(de)(de)(de)其它位置時(shi)(shi)，即讀此(ci)條(tiao)(tiao)刻(ke)度(du)(du)線(xian)。第三(san)條(tiao)(tiao)標(biao)有(you)(you)(you)(you)10V,指(zhi)(zhi)(zhi)示的(de)(de)(de)(de)(de)(de)(de)(de)是(shi)(shi)10V的(de)(de)(de)(de)(de)(de)(de)(de)交(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)壓值(zhi)(zhi)，當轉(zhuan)(zhuan)(zhuan)換開(kai)關(guan)(guan)在(zai)(zai)交(jiao)、直(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)壓擋，量(liang)(liang)程在(zai)(zai)交(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)10V時(shi)(shi)，即讀此(ci)條(tiao)(tiao)刻(ke)度(du)(du)線(xian)。第四條(tiao)(tiao)標(biao)有(you)(you)(you)(you)dB,指(zhi)(zhi)(zhi)示的(de)(de)(de)(de)(de)(de)(de)(de)是(shi)(shi)音(yin)頻電(dian)(dian)(dian)(dian)平。?萬(wan)(wan)(wan)(wan)(wan)用(yong)(yong)(yong)(yong)(yong)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)是(shi)(shi)電(dian)(dian)(dian)(dian)子(zi)測(ce)(ce)(ce)試領域基本的(de)(de)(de)(de)(de)(de)(de)(de)工具(ju)，也(ye)(ye)是(shi)(shi)一(yi)(yi)種(zhong)(zhong)使用(yong)(yong)(yong)(yong)(yong)廣泛的(de)(de)(de)(de)(de)(de)(de)(de)測(ce)(ce)(ce)試儀(yi)器。萬(wan)(wan)(wan)(wan)(wan)用(yong)(yong)(yong)(yong)(yong)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)又叫多用(yong)(yong)(yong)(yong)(yong)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)、三(san)用(yong)(yong)(yong)(yong)(yong)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)(A,V,Ω也(ye)(ye)即電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)，電(dian)(dian)(dian)(dian)壓，電(dian)(dian)(dian)(dian)阻(zu)(zu)三(san)用(yong)(yong)(yong)(yong)(yong)）、復(fu)用(yong)(yong)(yong)(yong)(yong)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)、萬(wan)(wan)(wan)(wan)(wan)能表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)，萬(wan)(wan)(wan)(wan)(wan)用(yong)(yong)(yong)(yong)(yong)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)分(fen)(fen)(fen)(fen)為指(zhi)(zhi)(zhi)針式(shi)(shi)萬(wan)(wan)(wan)(wan)(wan)用(yong)(yong)(yong)(yong)(yong)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)和數(shu)字(zi)萬(wan)(wan)(wan)(wan)(wan)用(yong)(yong)(yong)(yong)(yong)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)，還(huan)有(you)(you)(you)(you)一(yi)(yi)種(zhong)(zhong)帶示波(bo)器功(gong)能的(de)(de)(de)(de)(de)(de)(de)(de)示波(bo)萬(wan)(wan)(wan)(wan)(wan)用(yong)(yong)(yong)(yong)(yong)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)，是(shi)(shi)一(yi)(yi)種(zhong)(zhong)多功(gong)能、多量(liang)(liang)程的(de)(de)(de)(de)(de)(de)(de)(de)測(ce)(ce)(ce)量(liang)(liang)儀(yi)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)。一(yi)(yi)般(ban)萬(wan)(wan)(wan)(wan)(wan)用(yong)(yong)(yong)(yong)(yong)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)可(ke)(ke)(ke)測(ce)(ce)(ce)量(liang)(liang)直(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)、直(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)壓、交(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)壓、電(dian)(dian)(dian)(dian)阻(zu)(zu)和音(yin)頻電(dian)(dian)(dian)(dian)平等(deng)(deng)(deng)(deng)，有(you)(you)(you)(you)的(de)(de)(de)(de)(de)(de)(de)(de)還(huan)可(ke)(ke)(ke)以測(ce)(ce)(ce)交(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)、電(dian)(dian)(dian)(dian)容量(liang)(liang)、電(dian)(dian)(dian)(dian)感(gan)量(liang)(liang)、溫(wen)度(du)(du)及半導體（二(er)(er)極(ji)管、三(san)極(ji)管）的(de)(de)(de)(de)(de)(de)(de)(de)一(yi)(yi)些參數(shu)。數(shu)字(zi)式(shi)(shi)萬(wan)(wan)(wan)(wan)(wan)用(yong)(yong)(yong)(yong)(yong)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)已成(cheng)(cheng)為主(zhu)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)，已經取代模(mo)擬式(shi)(shi)儀(yi)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)。與模(mo)擬式(shi)(shi)儀(yi)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)相比，數(shu)字(zi)式(shi)(shi)儀(yi)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)(biao)靈(ling)敏(min)度(du)(du)高(gao)(gao)，精(jing)確(que)度(du)(du)高(gao)(gao)，顯示清晰(xi)，過(guo)載能力強，便于(yu)攜帶，使用(yong)(yong)(yong)(yong)(yong)也(ye)(ye)更方(fang)便簡(jian)單。?
1、精(jing)確度(du)
儀表精確(que)度(du)(du)科(ke)稱精度(du)(du)，又稱準(zhun)確(que)度(du)(du)。精確(que)度(du)(du)和(he)誤(wu)差可以說是孿生兄弟(di)，因(yin)為有誤(wu)差的(de)存在，才有精確(que)度(du)(du)這個概(gai)念。儀表精確(que)度(du)(du)簡言(yan)之就(jiu)是儀表測量值(zhi)(zhi)接近真(zhen)值(zhi)(zhi)的(de)準(zhun)確(que)程度(du)(du)，通常用相對百分(fen)誤(wu)差（也稱相對折合(he)誤(wu)差）表示。
2、變差(cha)
變(bian)差(cha)是(shi)指儀(yi)表(biao)(biao)(biao)被測變(bian)量（可理解為(wei)輸(shu)入信號）多次從(cong)不同(tong)方向達到(dao)同(tong)一數(shu)值(zhi)時，儀(yi)表(biao)(biao)(biao)指示(shi)值(zhi)之(zhi)(zhi)間的大差(cha)值(zhi)，或者說(shuo)是(shi)儀(yi)表(biao)(biao)(biao)在外界條件(jian)不變(bian)的情況下，被測參數(shu)由小(xiao)到(dao)大變(bian)化(hua)（正向特性）和被測參數(shu)由大到(dao)小(xiao)變(bian)化(hua)（反向特性）不一致的程(cheng)度，兩者之(zhi)(zhi)差(cha)即為(wei)儀(yi)表(biao)(biao)(biao)變(bian)差(cha)。
3、靈敏度
靈(ling)(ling)敏(min)度(du)是指儀(yi)表(biao)(biao)對(dui)被測參數變化(hua)(hua)的(de)(de)靈(ling)(ling)敏(min)程度(du)，或者(zhe)說是對(dui)被測的(de)(de)量(liang)(liang)變化(hua)(hua)的(de)(de)反應能(neng)力，是在穩(wen)態下，輸出變化(hua)(hua)增量(liang)(liang)對(dui)輸入變化(hua)(hua)增量(liang)(liang)的(de)(de)比(bi)值(zhi)：靈(ling)(ling)敏(min)度(du)有(you)時也(ye)稱“放大(da)比(bi)”，也(ye)是儀(yi)表(biao)(biao)靜特性貼(tie)切(qie)線上(shang)各點的(de)(de)斜率。增加放大(da)倍數可以提高儀(yi)表(biao)(biao)靈(ling)(ling)敏(min)度(du)，單純加大(da)靈(ling)(ling)敏(min)度(du)并不(bu)改變儀(yi)表(biao)(biao)的(de)(de)基本性能(neng)，即儀(yi)表(biao)(biao)精度(du)并沒有(you)提高，相(xiang)反有(you)時會出現(xian)振(zhen)蕩現(xian)象，造(zao)成(cheng)輸出不(bu)穩(wen)定。儀(yi)表(biao)(biao)靈(ling)(ling)敏(min)度(du)應保持適(shi)當(dang)的(de)(de)量(liang)(liang)。