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haibin9964
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樓主  發(fā)表于: 2017-01-16 09:34
如題，用接近開(kāi)關(guān)三線(xiàn)的pnp來(lái)實(shí)現電機轉速的檢測并在觸摸屏上顯示出來(lái)。本人新手，哪位能給個(gè)梯形圖案例，謝謝！轉速不高10轉以?xún)�，精確度也不是要求很高。謝謝！發(fā)qq郵箱也行2223187288.
18675736898
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1樓  發(fā)表于: 2017-01-16 11:40
用1S震蕩信號來(lái)采集接近開(kāi)關(guān)的信號
hardy_6817
紙上得來(lái)終覺(jué)淺,絕知此事要躬行.
級別: 略有小成
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2樓  發(fā)表于: 2017-01-16 13:14
兩脈沖上升沿時(shí)間ms，再60000去除
haibin9964
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3樓  發(fā)表于: 2017-02-02 11:31
檢測1min中轉速，誰(shuí)能上個(gè)梯形圖幫幫忙，謝謝

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