测量高电阻时两个最常见的误差来源是静电干扰和泄漏电流。
The two most common error sources when measuring high resistance are electrostatic interference and leakage current.
泄漏电流随时间呈指数衰减,所以通常需要在一个已知的时间期间内施加电压(浸润时间),然后再测量电流。
The leakage current will decay exponentially with time, so it's usually necessary to apply the voltage for a known period (the "soak" time) before measuring the current.
泄漏电流是由测量电路和附近的电压源之间的寄生电阻通路产生的。
Leakage currents are generated by stray resistance paths between the measurement circuit and nearby voltage sources.
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