明泰電(dian)(dian)(dian)(dian)氣（蘇(su)州）有限公(gong)司(si)(si)是正泰集(ji)團(tuan)在(zai)蘇(su)州地區一家授(shou)權的經銷(xiao)企業，連續十年銷(xiao)量居正泰營(ying)銷(xiao)網絡名(ming)，公(gong)司(si)(si)主要經營(ying)“正泰”牌配電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)器(qi)(qi)、控(kong)制電(dian)(dian)(dian)(dian)器(qi)(qi)、終端電(dian)(dian)(dian)(dian)器(qi)(qi)、電(dian)(dian)(dian)(dian)源(yuan)電(dian)(dian)(dian)(dian)器(qi)(qi)、電(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)子、儀器(qi)(qi)儀表(biao)、建筑(zhu)電(dian)(dian)(dian)(dian)器(qi)(qi)、高壓電(dian)(dian)(dian)(dian)器(qi)(qi)及(ji)成(cheng)套設(she)備。

當有電(dian)流(liu)(liu)通(tong)過(guo)時(shi)，電(dian)流(liu)(liu)沿彈簧(huang)、轉(zhuan)軸(zhou)通(tong)過(guo)磁(ci)場，電(dian)流(liu)(liu)切磁(ci)感線，所以受磁(ci)場力(li)的(de)作用(yong)，使線圈發生偏(pian)(pian)轉(zhuan)，帶動轉(zhuan)軸(zhou)、指(zhi)針(zhen)偏(pian)(pian)轉(zhuan)。由于磁(ci)場力(li)的(de)大小隨電(dian)流(liu)(liu)增大而增大，所以就(jiu)可以通(tong)過(guo)指(zhi)針(zhen)的(de)偏(pian)(pian)轉(zhuan)程度來觀察電(dian)流(liu)(liu)的(de)大小。這叫磁(ci)電(dian)式電(dian)流(liu)(liu)表，就(jiu)是我們(men)平時(shi)實驗(yan)室里用(yong)的(de)那種(zhong)。在初中時(shi)期(qi)，所用(yong)電(dian)流(liu)(liu)表量程一般為0~0.6A和0~3A

明泰(tai)(tai)電(dian)(dian)氣（蘇州(zhou)）有限(xian)公(gong)司是正泰(tai)(tai)集(ji)團在蘇州(zhou)地區一家授權的經(jing)銷(xiao)企業，連續十年銷(xiao)量(liang)居正泰(tai)(tai)營銷(xiao)網絡名，公(gong)司主(zhu)要經(jing)營“正泰(tai)(tai)”牌配電(dian)(dian)電(dian)(dian)器、控制電(dian)(dian)器、終(zhong)端電(dian)(dian)器、電(dian)(dian)源電(dian)(dian)器、電(dian)(dian)力電(dian)(dian)子(zi)、儀器儀表、建筑電(dian)(dian)器、高(gao)壓電(dian)(dian)器及成套(tao)設(she)備。

直流(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)表(biao)(biao)它采取四端(duan)結構，正泰電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)表(biao)(biao)價格，具有兩個(ge)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)端(duan)，兩個(ge)電(dian)(dian)(dian)(dian)位端(duan)。其電(dian)(dian)(dian)(dian)阻值的(de)選擇條件為：當標稱電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)通過該(gai)分(fen)流(liu)(liu)(liu)(liu)器時(shi)，正泰電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)表(biao)(biao)供(gong)應商，其電(dian)(dian)(dian)(dian)位端(duan)間的(de)電(dian)(dian)(dian)(dian)壓為45mV或(huo)75mV;以(yi)量程為45mV或(huo)75mV的(de)磁電(dian)(dian)(dian)(dian)系毫(hao)伏表(biao)(biao)測此電(dian)(dian)(dian)(dian)壓值，而表(biao)(biao)盤(pan)上則以(yi)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)值刻度。對于(yu)電(dian)(dian)(dian)(dian)動(dong)系測量機構，宿遷正泰電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)表(biao)(biao)，擴(kuo)大(da)測量電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)量程的(de)方法是(shi)：①加粗靜圈(quan)的(de)導線，同(tong)時(shi)減少(shao)匝數以(yi)保持安匝值不變;②將兩靜圈(quan)由串聯改為并聯，可使(shi)量程擴(kuo)大(da)一倍。利(li)用分(fen)流(liu)(liu)(liu)(liu)器和數字電(dian)(dian)(dian)(dian)壓表(biao)(biao)可構成(cheng)直流(liu)(liu)(liu)(liu)數字電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)表(biao)(biao)。

明泰電(dian)氣（蘇(su)州）有(you)限公司是(shi)正泰集(ji)團在蘇(su)州地區一家授權的經銷企(qi)業，連續十年銷量居正泰營(ying)銷網(wang)絡名，公司主要經營(ying)“正泰”牌(pai)配電(dian)電(dian)器(qi)(qi)、控制電(dian)器(qi)(qi)、終端電(dian)器(qi)(qi)、電(dian)源電(dian)器(qi)(qi)、電(dian)力電(dian)子(zi)、儀器(qi)(qi)儀表、建筑電(dian)器(qi)(qi)、高(gao)壓電(dian)器(qi)(qi)及(ji)成套設備。

使用步驟

⒈校零(ling)，用平口改錐調整校零(ling)按鈕。

⒉選用(yong)(yong)(yong)量程（用(yong)(yong)(yong)經驗估計(ji)或(huo)采(cai)用(yong)(yong)(yong)試觸法）

電流表

歸(gui)結(jie)起(qi)來有(you)(you)三看和三問先看清(qing)電(dian)(dian)流(liu)(liu)表(biao)(biao)的量(liang)(liang)程(cheng)，正(zheng)(zheng)泰電(dian)(dian)流(liu)(liu)表(biao)(biao)廠家(jia)，一(yi)般(ban)在表(biao)(biao)盤(pan)上有(you)(you)標記。確認格的一(yi)個(ge)表(biao)(biao)示多少安培把電(dian)(dian)流(liu)(liu)表(biao)(biao)的正(zheng)(zheng)負接線柱(zhu)接入電(dian)(dian)路(lu)后，觀(guan)察指(zhi)(zhi)針位置，就可以讀(du)數了。此(ci)外還(huan)要選擇合適量(liang)(liang)程(cheng)的電(dian)(dian)流(liu)(liu)表(biao)(biao)。可以先試觸一(yi)下，若指(zhi)(zhi)針擺動不明顯，則換(huan)小量(liang)(liang)程(cheng)的表(biao)(biao)。若指(zhi)(zhi)針擺動大角度，則換(huan)大量(liang)(liang)程(cheng)的表(biao)(biao)。一(yi)般(ban)指(zhi)(zhi)針在表(biao)(biao)盤(pan)中間左右，讀(du)數比(bi)較(jiao)合適。

一看：量程。電流表的測量范圍。

二看：分度值。表盤的一(yi)小格代表多少。

三(san)看：指針(zhen)位(wei)置。指針(zhen)的位(wei)置包含了多少(shao)個分度值。