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嘉寶和程寶
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樓主  發(fā)表于: 2017-03-24 18:24
我是用的溫控器PID控制電力調整器（可控硅）來(lái)加熱的，客戶(hù)要求加熱管損壞后有指示燈提示。
現在糾結的是，唯一可以想到的辦法就是檢測電流，如果加熱時(shí)沒(méi)電流就認為是斷路了來(lái)燈光提示。但保溫時(shí)同樣沒(méi)有電流，怎么來(lái)區分正常的沒(méi)電流和斷路？
求教各位了，最好發(fā)圖說(shuō)明。
hmilydyk
自動(dòng)化設計改造是我的職業(yè)也是我的愛(ài)好
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1樓  發(fā)表于: 2017-03-25 08:27
最直接的就是在加熱絲兩端加入電阻測量裝置，檢測電阻，加熱絲斷，輸出信號報警
樓主留言：
電阻測量裝置？麻煩老兄說(shuō)的仔細點(diǎn)。

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