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在 05-27-2023 05:51 AM
大家好
想詢問一下關於CNC輸正負10V的電壓，擷取卡接收到的訊號如下圖
擷取時間為兩分鐘，但似乎裡面包含了許多雜訊，軟體內部是否哪邊可以設定或是有其他方法濾掉雜訊的方法。
希望可以像下圖右邊一樣。
在 09-26-2023 11:40 AM
LabVIEW的signal processing toolkit應該有很多工具可以濾波
不過看您的訊號, 我偏向建議您回頭看看量測本身是否有哪邊可以改善
my gut feeling: 接線方法是否有錯誤? USB-6000大概是single-ended, 很高機率會ground loop問題, 此外訊源到DAQ也會有雜訊干擾
給您參考嚕!
Harvey | https://portaly.cc/Harvey
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