將靈敏電流計改裝成

電流表

指針式電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)表(biao)(biao)都是由(you)靈(ling)敏電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)計(ji)改(gai)裝而(er)來的(de)(de)(de)。靈(ling)敏電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)計(ji)即使(shi)靈(ling)敏度(du)再高，通過(guo)的(de)(de)(de)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)不(bu)(bu)超過(guo)30微安，正泰電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)表(biao)(biao)價格，而(er)學生用電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)表(biao)(biao)測(ce)得的(de)(de)(de)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)強(qiang)度(du)都是0.6A，或者3A，遠遠超出醉大(da)值。電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)表(biao)(biao)既(ji)要讓(rang)電(dian)(dian)(dian)(dian)路上的(de)(de)(de)全部(bu)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)通過(guo)，又不(bu)(bu)允許通過(guo)線圈的(de)(de)(de)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)超過(guo)安全限度(du)。電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)表(biao)(biao)是與被測(ce)用電(dian)(dian)(dian)(dian)器串聯的(de)(de)(de)，所以改(gai)裝時要分(fen)(fen)流(liu)(liu)(liu)(liu)。將靈(ling)敏電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)計(ji)與一個阻值較小(xiao)的(de)(de)(de)電(dian)(dian)(dian)(dian)阻并聯，這(zhe)樣就會(hui)使(shi)大(da)部(bu)分(fen)(fen)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)通過(guo)電(dian)(dian)(dian)(dian)阻，小(xiao)部(bu)分(fen)(fen)經(jing)過(guo)表(biao)(biao)頭。這(zhe)時將表(biao)(biao)頭標(biao)上新的(de)(de)(de)刻度(du)，就可以了。

交流(liu)(liu)(liu)(liu)電流(liu)(liu)(liu)(liu)表(biao)(biao)(biao)主要采(cai)用(yong)電磁系(xi)電表(biao)(biao)(biao)、電動(dong)系(xi)電表(biao)(biao)(biao)和整流(liu)(liu)(liu)(liu)式電表(biao)(biao)(biao)的(de)測量機構(gou)。電磁系(xi)測量機構(gou)的(de)醉(zui)低(di)量程(cheng)(cheng)約為幾十(shi)毫安，為提(ti)高量程(cheng)(cheng)，要按比(bi)例減(jian)少線(xian)圈(quan)匝(za)數，并(bing)加粗(cu)導線(xian)。用(yong)電動(dong)系(xi)測量機構(gou)構(gou)成電流(liu)(liu)(liu)(liu)表(biao)(biao)(biao)時(shi)，正(zheng)泰(tai)電流(liu)(liu)(liu)(liu)表(biao)(biao)(biao)廠家，動(dong)圈(quan)與靜(jing)圈(quan)并(bing)聯(lian)(lian)，正(zheng)泰(tai)電流(liu)(liu)(liu)(liu)表(biao)(biao)(biao)供應商，其醉(zui)低(di)量程(cheng)(cheng)約為幾十(shi)毫安。為提(ti)高量程(cheng)(cheng)，要減(jian)少靜(jing)圈(quan)匝(za)數，連云港正(zheng)泰(tai)電流(liu)(liu)(liu)(liu)表(biao)(biao)(biao)，并(bing)加粗(cu)導線(xian)，或將兩個靜(jing)圈(quan)由串聯(lian)(lian)改為并(bing)聯(lian)(lian)，則(ze)電流(liu)(liu)(liu)(liu)表(biao)(biao)(biao)的(de)量程(cheng)(cheng)將增大一(yi)倍。

明泰(tai)電(dian)(dian)(dian)(dian)氣（蘇州(zhou)）有限公司(si)是正泰(tai)集團在蘇州(zhou)地區一家授(shou)權的經(jing)銷(xiao)企業，連(lian)續十年(nian)銷(xiao)量居正泰(tai)營銷(xiao)網絡名，公司(si)主要經(jing)營“正泰(tai)”牌配(pei)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)器(qi)、控(kong)制電(dian)(dian)(dian)(dian)器(qi)、終端電(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、儀器(qi)儀表、建筑電(dian)(dian)(dian)(dian)器(qi)、高壓電(dian)(dian)(dian)(dian)器(qi)及成套(tao)設備。

讀數

⒈看清

電流表

量程

⒉看清分度(du)值（一般而言，量程(cheng)0~3A分度(du)值為0.1A，0~0.6A為0.02A)

⒊看清表針停留位(wei)置（一定從正面觀(guan)察）

⒋選(xuan)用量程{用經驗估計或采用試觸法(fa)}