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daviddavid
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樓主  發(fā)表于: 2012-05-22 14:49
現遇到一問(wèn)題：
檢測液體的液面，當達到一定高度時(shí)輸出開(kāi)關(guān)信號給泵動(dòng)作，泵動(dòng)作后延時(shí)一定時(shí)間后液面低于設定距離就停止動(dòng)作；
液體是水泥漿水，不可以直接接觸，測量距離在大于300mm.
查過(guò)相關(guān)資料，說(shuō)要么用激光測距或超聲波測距，各位大蝦有沒(méi)有好的建議？請給出型號。
cwsdlcyhy
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1樓  發(fā)表于: 2012-05-22 16:27
可以采用浮球杠桿推動(dòng)微動(dòng)開(kāi)關(guān)，浮球采用塑料材質(zhì)，連桿用不銹鋼外包塑料即可，市場(chǎng)均可買(mǎi)到。
樓主留言：
如果用機械扛桿，水泥漿會(huì )很容易凝固的，所以實(shí)現這個(gè)方法有點(diǎn)難度。

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