我(wo)國(guo)電(dian)壓(ya)都是統一的(de)“220v”電(dian)壓(ya)，但有時候電(dian)壓(ya)也會出現一定(ding)的(de)不穩定(ding)，這對實驗室的(de)儀器會產(chan)生很大影響，有時會直接(jie)燒壞(huai)實驗室儀器，我(wo)們如何處(chu)理實驗室電(dian)壓(ya)不穩定(ding)的(de)問題呢，中央實驗臺廠家來告訴您。

　　電(dian)(dian)(dian)(dian)源(yuan)質量低劣(lie)是大(da)多數電(dian)(dian)(dian)(dian)子(zi)設(she)備損壞及其運行發生故障的元兇(xiong)。常見(jian)電(dian)(dian)(dian)(dian)源(yuan)質量問題有：電(dian)(dian)(dian)(dian)壓(ya)過(guo)高或過(guo)低，電(dian)(dian)(dian)(dian)網突(tu)波和(he)雜波干擾(rao)，電(dian)(dian)(dian)(dian)力(li)供應中斷(duan)或瞬間斷(duan)電(dian)(dian)(dian)(dian)等。一(yi)般(ban)電(dian)(dian)(dian)(dian) 子(zi)儀器和(he)電(dian)(dian)(dian)(dian)器設(she)備都允許輸入(ru)電(dian)(dian)(dian)(dian)壓(ya)有一(yi)個波動范圍內均可正常工作，但對于(yu)電(dian)(dian)(dian)(dian)網干擾(rao)(包括突(tu)波和(he)雜波干擾(rao))就容易引(yin)起嚴(yan)重(zhong)后(hou)果。以計算(suan)機為例，常出現“沖(chong)程 序”的CPU控制紊亂問題。

　　眾所周知，微機在各行業得到(dao)廣泛應(ying)(ying)用，幾乎(hu)高精尖電(dian)子儀器和電(dian)器設(she)備都有微機(含(han)工控機)應(ying)(ying)用系統。抗干(gan)擾(rao)性能(neng)和穩定(ding)(ding)(ding)(ding)性已成為 重要指標之一(yi)，否(fou)則，再完善的功(gong)能(neng)設(she)計(ji)，若抗干(gan)擾(rao)性和穩定(ding)(ding)(ding)(ding)性不好則現(xian)場(chang)無法應(ying)(ying)用，電(dian)腦(nao)變為“煩(fan)腦(nao)”。微機(含(han)工控機)應(ying)(ying)用系統穩定(ding)(ding)(ding)(ding)性受到(dao)各種因素影響，但(dan) 設(she)法維持主(zhu)(zhu)機程序穩定(ding)(ding)(ding)(ding)性具有決定(ding)(ding)(ding)(ding)性意義。主(zhu)(zhu)機是嚴格按時鐘操作(zuo)，完成CPU和主(zhu)(zhu)機及(ji)外部設(she)備的信息交換的。

　　當(dang)干擾(rao)出(chu)現時(shi)，通常是CPU控制紊亂，嚴重(zhong)時(shi)內(nei) 存REM也被沖掉。其主要原因是不(bu)等位(wei)干擾(rao)，也就(jiu)是邏(luo)輯地的不(bu)等位(wei)。由于(yu)電(dian)(dian)網供電(dian)(dian)用戶極其復雜(za)，所以電(dian)(dian)網“污(wu)染”、電(dian)(dian)網干擾(rao)也很(hen)復雜(za)，如電(dian)(dian)磁(ci)鐵、電(dian)(dian)動機、 無(wu)觸點開關(guan)、有觸點開關(guan)、火花和(he)電(dian)(dian)弧等都會產生干擾(rao)，可以說(shuo)是無(wu)處不(bu)在(zai)無(wu)時(shi)不(bu)在(zai);電(dian)(dian)網“污(wu)染”、電(dian)(dian)網干擾(rao)和(he)電(dian)(dian)磁(ci)干擾(rao)等造(zao)成(cheng)電(dian)(dian)源質量(liang)，務必引起(qi)我們足夠(gou)重(zhong) 視。