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發(fā)布時(shí)間: 2011-10-23 10:42
正文摘要:渦輪流量計(jì)的特點(diǎn)與安裝使用.doc 遠(yuǎn)傳顯示主要是通過(guò)減速后的齒輪帶動(dòng)永久磁鐵旋轉(zhuǎn),使得彈簧繼電器的觸點(diǎn)以與永久磁鐵相同的旋轉(zhuǎn)頻率同步地閉合或斷開,從而發(fā)出一個(gè)個(gè)電脈沖遠(yuǎn)傳給另一顯示儀 表. ... |
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