数字电压表输入电路对测量误差的影响
China Metrology(2007)
Abstract
<正>当我们用数字电压表(DVM)测量电压信号时,除DVM的基本误差外,同时还存在输入电路对测量误差的影响。一、输入阻抗的影响在进行电压测量过程中,实际上一切仪表都要从信号源中吸取电流并消耗能量,这样由信号源取得的电流经过
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