明泰電(dian)(dian)氣(qi)（蘇州(zhou)）有限公(gong)司(si)是(shi)正(zheng)(zheng)泰集團在蘇州(zhou)地區(qu)一家(jia)授權的經銷企業，連續十年銷量居正(zheng)(zheng)泰營銷網(wang)絡名，公(gong)司(si)主要經營“正(zheng)(zheng)泰”牌配(pei)電(dian)(dian)電(dian)(dian)器(qi)、控制電(dian)(dian)器(qi)、終端電(dian)(dian)器(qi)、電(dian)(dian)源(yuan)電(dian)(dian)器(qi)、電(dian)(dian)力電(dian)(dian)子、儀器(qi)儀表(biao)、建筑(zhu)電(dian)(dian)器(qi)、高壓電(dian)(dian)器(qi)及成套設備(bei)。

注意事項

量程的(de)擴大。當電路(lu)中的(de)被(bei)測量超過儀表的(de)量程時，可采用外附分流器(qi)或分壓(ya)器(qi)，但(dan)應注意其準(zhun)(zhun)確(que)度等(deng)級(ji)應與儀表的(de)準(zhun)(zhun)確(que)度等(deng)級(ji)相(xiang)符(fu)。

另外，還應注意儀表的使用環境要(yao)符合要(yao)求(qiu)，要(yao)遠離外磁場。

使用規則

電流表

①電流表要與用電器(qi)串聯(lian)在(zai)電路中（不能接在(zai)電池(chi)兩(liang)端否則短路，就會燒壞電流表。）；

②電(dian)流(liu)要從'+'接(jie)線柱入，正(zheng)泰電(dian)流(liu)表，從'-'接(jie)線柱出(chu)（否則指(zhi)針反轉(zhuan)，容易把針打彎。）；

③被(bei)測電流不(bu)要(yao)超過電流表的量程（可以(yi)采用(yong)試(shi)觸的方(fang)法來看是否超過量程。）；

④絕隊不(bu)允許不(bu)經(jing)過(guo)用電(dian)器而把電(dian)流表連(lian)(lian)到電(dian)源的兩極上(shang)（電(dian)流表內阻很小，相當于一(yi)根導線。若將電(dian)流表連(lian)(lian)到電(dian)源的兩極上(shang)，輕則(ze)指針打歪，重則(ze)燒壞(huai)電(dian)流表、電(dian)源、導線。）.

注意(yi)是(shi)：先燒表(biao)（電流表(biao)），后毀源（電源）

明泰(tai)(tai)電(dian)(dian)(dian)(dian)(dian)氣（蘇州）有限(xian)公司是正(zheng)泰(tai)(tai)集團(tuan)在蘇州地(di)區一家授權(quan)的經銷企業，正(zheng)泰(tai)(tai)電(dian)(dian)(dian)(dian)(dian)流(liu)表報價，連續十年銷量居正(zheng)泰(tai)(tai)營(ying)(ying)銷網絡名，公司主(zhu)要經營(ying)(ying)“正(zheng)泰(tai)(tai)”牌配(pei)電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)器(qi)、控(kong)制電(dian)(dian)(dian)(dian)(dian)器(qi)、終端電(dian)(dian)(dian)(dian)(dian)器(qi)、電(dian)(dian)(dian)(dian)(dian)源電(dian)(dian)(dian)(dian)(dian)器(qi)、電(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)子、儀器(qi)儀表、建(jian)筑電(dian)(dian)(dian)(dian)(dian)器(qi)、高(gao)壓電(dian)(dian)(dian)(dian)(dian)器(qi)及成套(tao)設(she)備(bei)。

發展過程

威廉·愛德華·韋(wei)伯(bo)在電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)學(xue)上(shang)的(de)貢(gong)獻(xian)是(shi)多方(fang)面(mian)的(de)。他為了(le)(le)(le)進行研究，正泰電(dian)(dian)(dian)(dian)(dian)流(liu)表廠(chang)家，他發(fa)明(ming)了(le)(le)(le)許多電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)儀器。1841年(nian)發(fa)明(ming)了(le)(le)(le)既(ji)可測(ce)(ce)(ce)(ce)量(liang)(liang)地(di)磁(ci)(ci)強(qiang)度(du)又可測(ce)(ce)(ce)(ce)量(liang)(liang)電(dian)(dian)(dian)(dian)(dian)流(liu)強(qiang)度(du)的(de)絕隊(dui)(dui)電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)學(xue)單(dan)(dan)(dan)(dan)位(wei)(wei)(wei)的(de)雙線電(dian)(dian)(dian)(dian)(dian)流(liu)表；1846年(nian)發(fa)明(ming)了(le)(le)(le)既(ji)可用來確定電(dian)(dian)(dian)(dian)(dian)流(liu)強(qiang)度(du)的(de)電(dian)(dian)(dian)(dian)(dian)動(dong)力學(xue)單(dan)(dan)(dan)(dan)位(wei)(wei)(wei)又可用來測(ce)(ce)(ce)(ce)量(liang)(liang)交流(liu)電(dian)(dian)(dian)(dian)(dian)功(gong)率的(de)電(dian)(dian)(dian)(dian)(dian)功(gong)率表；1853年(nian)發(fa)明(ming)了(le)(le)(le)測(ce)(ce)(ce)(ce)量(liang)(liang)地(di)磁(ci)(ci)強(qiang)度(du)垂(chui)直分量(liang)(liang)的(de)地(di)磁(ci)(ci)感應(ying)器。韋(wei)伯(bo)在建立電(dian)(dian)(dian)(dian)(dian)學(xue)單(dan)(dan)(dan)(dan)位(wei)(wei)(wei)的(de)絕隊(dui)(dui)測(ce)(ce)(ce)(ce)量(liang)(liang)方(fang)面(mian)卓(zhuo)有成效(xiao)。他提(ti)(ti)(ti)出(chu)了(le)(le)(le)電(dian)(dian)(dian)(dian)(dian)流(liu)強(qiang)度(du)、電(dian)(dian)(dian)(dian)(dian)量(liang)(liang)和電(dian)(dian)(dian)(dian)(dian)動(dong)勢的(de)絕隊(dui)(dui)單(dan)(dan)(dan)(dan)位(wei)(wei)(wei)和測(ce)(ce)(ce)(ce)量(liang)(liang)方(fang)法(fa)；根據安培(pei)的(de)電(dian)(dian)(dian)(dian)(dian)動(dong)力學(xue)公式提(ti)(ti)(ti)出(chu)了(le)(le)(le)電(dian)(dian)(dian)(dian)(dian)流(liu)強(qiang)度(du)的(de)電(dian)(dian)(dian)(dian)(dian)動(dong)力學(xue)單(dan)(dan)(dan)(dan)位(wei)(wei)(wei)；還提(ti)(ti)(ti)出(chu)了(le)(le)(le)電(dian)(dian)(dian)(dian)(dian)阻的(de)絕單(dan)(dan)(dan)(dan)位(wei)(wei)(wei)。韋(wei)伯(bo)與柯(ke)爾勞施(shi)合(he)作測(ce)(ce)(ce)(ce)定了(le)(le)(le)電(dian)(dian)(dian)(dian)(dian)量(liang)(liang)的(de)電(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)單(dan)(dan)(dan)(dan)位(wei)(wei)(wei)對(dui)靜電(dian)(dian)(dian)(dian)(dian)單(dan)(dan)(dan)(dan)位(wei)(wei)(wei)的(de)比值(zhi)，發(fa)現這個比值(zhi)等(deng)于3×10^8m/s，接近于光速。

明泰(tai)電(dian)(dian)(dian)(dian)氣（蘇(su)州(zhou)）有限公司(si)是正泰(tai)集團在蘇(su)州(zhou)地區一家授權的經銷(xiao)企業，連續十(shi)年銷(xiao)量居正泰(tai)營銷(xiao)網絡名，公司(si)主要經營“正泰(tai)”牌配電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)器(qi)、控制電(dian)(dian)(dian)(dian)器(qi)、終(zhong)端電(dian)(dian)(dian)(dian)器(qi)、電(dian)(dian)(dian)(dian)源電(dian)(dian)(dian)(dian)器(qi)、電(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)子、儀(yi)(yi)器(qi)儀(yi)(yi)表、建筑電(dian)(dian)(dian)(dian)器(qi)、高壓電(dian)(dian)(dian)(dian)器(qi)及(ji)成(cheng)套設備。

改(gai)裝大小所需(xu)電(dian)(dian)阻(zu)(zu)阻(zu)(zu)值(zhi)有個公式：R1=R/[（I1/I）-1]，正泰(tai)電(dian)(dian)流(liu)表(biao)價格(ge)，其中(zhong)R1是改(gai)裝時(shi)所需(xu)的電(dian)(dian)阻(zu)(zu)阻(zu)(zu)值(zhi)，R是靈敏電(dian)(dian)流(liu)計(ji)的線圈阻(zu)(zu)值(zhi)，I1是改(gai)裝后電(dian)(dian)流(liu)表(biao)醉大量程，I是靈敏電(dian)(dian)流(liu)計(ji)醉大量程。

學生(sheng)用電流(liu)表有兩(liang)個(ge)量程(cheng)，也就(jiu)是有兩(liang)個(ge)電阻；指針式萬用表上的量程(cheng)選擇(ze)實際是電位器。