將靈敏電流計改裝成

電流表

指針式電(dian)(dian)流(liu)(liu)(liu)(liu)表(biao)都是(shi)由靈(ling)敏電(dian)(dian)流(liu)(liu)(liu)(liu)計(ji)(ji)改(gai)裝而(er)來的。靈(ling)敏電(dian)(dian)流(liu)(liu)(liu)(liu)計(ji)(ji)即(ji)使(shi)靈(ling)敏度(du)(du)再高，正泰電(dian)(dian)流(liu)(liu)(liu)(liu)表(biao)供應商，通(tong)過(guo)(guo)的電(dian)(dian)流(liu)(liu)(liu)(liu)不超(chao)(chao)過(guo)(guo)30微安，而(er)學生(sheng)用電(dian)(dian)流(liu)(liu)(liu)(liu)表(biao)測得的電(dian)(dian)流(liu)(liu)(liu)(liu)強度(du)(du)都是(shi)0.6A，或者3A，遠(yuan)遠(yuan)超(chao)(chao)出醉(zui)大(da)(da)值(zhi)。電(dian)(dian)流(liu)(liu)(liu)(liu)表(biao)既要讓電(dian)(dian)路(lu)上的全部(bu)電(dian)(dian)流(liu)(liu)(liu)(liu)通(tong)過(guo)(guo)，又(you)不允許通(tong)過(guo)(guo)線圈的電(dian)(dian)流(liu)(liu)(liu)(liu)超(chao)(chao)過(guo)(guo)安全限度(du)(du)。電(dian)(dian)流(liu)(liu)(liu)(liu)表(biao)是(shi)與被(bei)測用電(dian)(dian)器串聯(lian)的，所以改(gai)裝時要分流(liu)(liu)(liu)(liu)。將靈(ling)敏電(dian)(dian)流(liu)(liu)(liu)(liu)計(ji)(ji)與一個阻值(zhi)較(jiao)小(xiao)的電(dian)(dian)阻并(bing)聯(lian)，正泰電(dian)(dian)流(liu)(liu)(liu)(liu)表(biao)報(bao)價，這樣就會使(shi)大(da)(da)部(bu)分電(dian)(dian)流(liu)(liu)(liu)(liu)通(tong)過(guo)(guo)電(dian)(dian)阻，小(xiao)部(bu)分經過(guo)(guo)表(biao)頭(tou)。這時將表(biao)頭(tou)標上新的刻度(du)(du)，就可以了。

明(ming)泰電(dian)(dian)(dian)(dian)(dian)氣（蘇州(zhou)）有(you)限公司(si)是(shi)正泰集團在蘇州(zhou)地區一家授(shou)權的(de)經銷(xiao)企(qi)業，連續十(shi)年銷(xiao)量居正泰營銷(xiao)網(wang)絡名，正泰電(dian)(dian)(dian)(dian)(dian)流表(biao)哪家好，公司(si)主要(yao)經營“正泰”牌配電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)、控制電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)、終端電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)、電(dian)(dian)(dian)(dian)(dian)源(yuan)電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)、電(dian)(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)(dian)子(zi)、儀(yi)器(qi)(qi)(qi)儀(yi)表(biao)、建(jian)筑電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)、高壓電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)及成套設備。

用整流(liu)(liu)式電(dian)(dian)(dian)表(biao)測交(jiao)流(liu)(liu)電(dian)(dian)(dian)流(liu)(liu)時，僅當交(jiao)流(liu)(liu)為正弦波形時，電(dian)(dian)(dian)流(liu)(liu)表(biao)讀數才正確。為擴(kuo)大量程也可(ke)利用分流(liu)(liu)器。此外，也可(ke)用熱電(dian)(dian)(dian)式電(dian)(dian)(dian)表(biao)測量機構測量高(gao)頻電(dian)(dian)(dian)流(liu)(liu)。在電(dian)(dian)(dian)力(li)系(xi)統中使用的(de)大量程交(jiao)流(liu)(liu)電(dian)(dian)(dian)流(liu)(liu)表(biao)多是用5A或(huo)1A的(de)電(dian)(dian)(dian)磁(ci)系(xi)電(dian)(dian)(dian)流(liu)(liu)表(biao)，并(bing)配以(yi)適當電(dian)(dian)(dian)流(liu)(liu)變比(bi)的(de)電(dian)(dian)(dian)流(liu)(liu)互感器。

交(jiao)流(liu)電(dian)(dian)流(liu)表(biao)(biao)主要采用(yong)電(dian)(dian)磁(ci)系電(dian)(dian)表(biao)(biao)、電(dian)(dian)動(dong)(dong)(dong)系電(dian)(dian)表(biao)(biao)和整流(liu)式電(dian)(dian)表(biao)(biao)的測(ce)(ce)量(liang)(liang)(liang)機(ji)(ji)構(gou)(gou)。電(dian)(dian)磁(ci)系測(ce)(ce)量(liang)(liang)(liang)機(ji)(ji)構(gou)(gou)的醉低量(liang)(liang)(liang)程(cheng)約為(wei)幾十(shi)(shi)毫(hao)安，為(wei)提高(gao)(gao)量(liang)(liang)(liang)程(cheng)，要按比例減少線(xian)圈(quan)匝(za)數(shu)，并(bing)(bing)加(jia)粗導線(xian)。用(yong)電(dian)(dian)動(dong)(dong)(dong)系測(ce)(ce)量(liang)(liang)(liang)機(ji)(ji)構(gou)(gou)構(gou)(gou)成電(dian)(dian)流(liu)表(biao)(biao)時，動(dong)(dong)(dong)圈(quan)與(yu)靜圈(quan)并(bing)(bing)聯(lian)(lian)，其醉低量(liang)(liang)(liang)程(cheng)約為(wei)幾十(shi)(shi)毫(hao)安。為(wei)提高(gao)(gao)量(liang)(liang)(liang)程(cheng)，要減少靜圈(quan)匝(za)數(shu)，連云港正泰(tai)電(dian)(dian)流(liu)表(biao)(biao)，并(bing)(bing)加(jia)粗導線(xian)，或將兩(liang)個靜圈(quan)由串聯(lian)(lian)改(gai)為(wei)并(bing)(bing)聯(lian)(lian)，則(ze)電(dian)(dian)流(liu)表(biao)(biao)的量(liang)(liang)(liang)程(cheng)將增大一倍(bei)。