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無源示波器探頭如何選擇？

  • 2020-08-20
  • 215

示波器探頭對測量結果的準確性以及正確性至關重要，它是連接被測電路與示波器輸入端的電子部件。最簡單的探頭是連接被測電路與電子示波器輸入端的一根導線，復雜的探頭由阻容元件和有源器件組成。簡單的探頭沒有采取屏蔽措施很容易受到外界電磁場的干擾，而且本身等效電容較大，造成被測電路的負載增加，使被測信號失真。

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