當數位輸出改變狀態,會影響數位輸入
硬體: Modular Instruments>>High-Precision DAQ (Dataloggers)
問題: 如果我改變NI 4351 DAQ的數位訊號由low到high,我常看到在旁邊的數位線也會有些影響,換言之,我看到它的瞬間有變成high,然後又變回原來的low狀態,請問這是正常的嗎?
解答: 此暫態的變化主要因為數位訊號線都是設計成高阻抗輸入低阻抗輸出,要防止此情形的發生是將訊號連接到地,若是鄰近得線被趨動, 此情況可改善,若要更詳細的資料可參考下面的連結
相關連結: NI 4350/4351 User Manual: December 1998 Edition
附加檔案:
報告日期: 09/03/2002
最後更新: 04/14/2005
文件偏號: 2P2A98YY
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