哪些因素會(huì)(huì )干擾數(shù)顯壓力開(kāi)(kāi)關(guān)(guān)
時(shí)(shí)間:2014-12-17 00:18:46 點(diǎn)(diǎn)擊次數(shù):404
數(shù)顯壓力開(kāi)(kāi)關(guān)(guān)如果在一個(gè)(gè)非穩(wěn)定的環(huán)(huán)境中工作,會(huì)(huì )很容易受到一些因素的干擾,這些因素如果長(zhǎng)(cháng)時(shí)(shí)間存在就會(huì)(huì )直接影響數(shù)顯壓力開(kāi)(kāi)關(guān)(guān)的正常工作,那么具體都有哪些干擾因素呢?
1.供電電源
當(dāng)供電電源輸出的電流電壓是脈沖類(lèi)型時(shí)(shí),這些不穩(wěn)定的電壓會(huì)(huì )直接進(jìn)(jìn)入數(shù)顯壓力開(kāi)(kāi)關(guān)(guān)的電路中干擾信號(hào),從而影響了數(shù)顯壓力開(kāi)(kāi)關(guān)(guān)的輸出信號(hào),引起了測(cè)量誤差。
2.振動(dòng)(dòng)
當(dāng)數(shù)顯壓力開(kāi)(kāi)關(guān)(guān)安裝在振動(dòng)(dòng)管道中時(shí)(shí),如果管道的振動(dòng)(dòng)幅度不大,那么對(duì)數(shù)顯壓力開(kāi)(kāi)關(guān)(guān)造成的影響是不大的;如果管道的振動(dòng)(dòng)幅度相對(duì)較大,已經(jīng)(jīng)超出了數(shù)顯壓力開(kāi)(kāi)關(guān)(guān)可以承受的范圍,那隨即就會(huì)(huì )干擾到數(shù)顯壓力開(kāi)(kāi)關(guān)(guān)的工作。
3.電磁感應(yīng)
當(dāng)數(shù)顯壓力開(kāi)(kāi)關(guān)(guān)的周?chē)寫笮妥儔浩?、大型電機(jī)等大功率設(shè)備存在時(shí)(shí),那周?chē)臻g很容易形成較強(qiáng)的電磁場(chǎng)(chǎng),使數(shù)顯壓力開(kāi)(kāi)關(guān)(guān)的電路產(chǎn)(chǎn)生異常感應(yīng),*終影響數(shù)顯壓力開(kāi)(kāi)關(guān)(guān)的輸入信號(hào)和輸出信號(hào)。
4.其他干擾
其他干擾是指當(dāng)數(shù)顯壓力開(kāi)(kāi)關(guān)(guān)周?chē)綣嬖誆煌饘?,這些金屬會(huì)(huì )產(chǎn)(chǎn)生金屬腐蝕的化學(xué)(xué)現(xiàn)象,干擾數(shù)顯壓力開(kāi)(kāi)關(guān)(guān)電路的工作。
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