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暗夜幽靈
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樓主  發(fā)表于: 2014-01-10 16:10
現在有一水罐儀表，輸入信號是4—20ma,輸出4-20ma水罐高度為1.9m,液位探頭位置在0.4m，現在在儀表上標定時(shí)，4ma對應0.4m,20ma對應1.9m,結果顯示值為0.7m,實(shí)際值應該是1.1米，請問(wèn)應該如何標定？還有程序中有這個(gè)問(wèn)題：溫度數值轉換成輸出值時(shí)要除以256;而液位卻是除以5120，這是為什么？
補充一點(diǎn)，液位量程是0-50KPA

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