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lujing9
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樓主  發(fā)表于: 2012-05-19 23:31
cclink 的AD模塊 AJ65BT-64AD  接了8個(gè) omron的壓力傳感器  傳感器輸出1-5V的電壓 傳感器的 安裝位置較遠 1百米左右


為什么在模塊的輸入端測得的電壓穩定在5mV 內 但是在觸摸屏上顯示的壓力數值都要比實(shí)際壓力值大0.05MP左右呢？
而且數字一直上下波動(dòng)。
屏蔽線(xiàn)接了也不管用

說(shuō)明書(shū)中的接地是接 220V的 地線(xiàn)嗎？還是電源模塊24V的負極呢？
zsm9614501
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1樓  發(fā)表于: 2012-05-20 19:42
請把采樣時(shí)間改成平均采樣次數，然后調高平均采樣的次數，數字波動(dòng)就小了
每天好心情

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