1747-L542
1747-L542
它由固定線圈和偏心地裝在轉(zhuǎn)軸上的活動(dòng)鐵片等組成。和軸一起轉(zhuǎn)動(dòng)的部分除活動(dòng)鐵片外.還有指針、平衡錘、磁感應(yīng)限尼器的扇形鋁片和產(chǎn)生反作用力矩的游絲,扇形鋁片可以在起阻尼用的*磁鐵的空氣隙中轉(zhuǎn)動(dòng)。為了防止固定線圈受到*磁鐵的影響,在*磁鐵前有一塊鋼質(zhì)的磁屏。
當(dāng)線圈中通人電流時(shí),在線圈的附近就有磁場(chǎng)產(chǎn)生.在線圈的兩端就呈現(xiàn)磁性,使活動(dòng)鐵片被磁化,磁場(chǎng)吸引活動(dòng)鐵片進(jìn)人線圈的縫隙,在轉(zhuǎn)軸上產(chǎn)生轉(zhuǎn)動(dòng)力矩,帶動(dòng)可動(dòng)部分偏轉(zhuǎn)。
當(dāng)轉(zhuǎn)動(dòng)力矩與游絲產(chǎn)生的反作用力矩相平衡時(shí),指針便穩(wěn)定在某一位置,從而在刻度盤上指示出被測(cè)電流或電壓的數(shù)值來。
當(dāng)線圈中的電流方向改變時(shí),線圈所產(chǎn)生的磁場(chǎng)的極性及被磁化的活動(dòng)鐵片的極性也隨著改變。磁場(chǎng)仍對(duì)活動(dòng)鐵片有吸引力,且轉(zhuǎn)矩方向不變,所以指針偏轉(zhuǎn)的方向也不會(huì)改變??梢姡@種結(jié)構(gòu)的儀表既可測(cè)址直流也可測(cè)從交流.
備貨,備貨,降降降,火火火,火火火……
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公司名稱:廈門泰尼電氣有限公司
:小黃(銷售代表)
:
傳真號(hào)碼:(麻煩備注01006收)
號(hào)碼:
:
誠(chéng)信經(jīng)營(yíng),質(zhì)量為首,誠(chéng)信*,泰尼電氣小黃竭誠(chéng)為您服務(wù)?。。?br />————————————————————————————————
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