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什么是亂磁現(xiàn)象?
發(fā)布時(shí)間:2016-12-06   瀏覽:1324次

比如在使用常規(guī)V錐流量計(jì)來測(cè)量液化烴之類易汽化的介質(zhì)液位時(shí),在平穩(wěn)的狀態(tài)下,被測(cè)介質(zhì)的液相和氣相相互轉(zhuǎn)化達(dá)到平衡。如果這時(shí)由儲(chǔ)罐內(nèi)抽出液體時(shí),液面上的空間加大,氣相壓力降低,就會(huì)有很多的氣泡生成,小氣泡在上升過程中慢慢的變成大氣泡,大泡泡進(jìn)入常規(guī)磁性浮子液位室,可能會(huì)成為上升的氣相段,氣相段它在上升的時(shí)候碰到浮子時(shí),氣相想要在浮子周圍擦過,此時(shí)浮子的運(yùn)動(dòng)速度加快從而和測(cè)量室的外部指示器失去磁連接作用,終造成“亂磁”現(xiàn)象。

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