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根据欧姆定律,用伏安法就可以测出电阻的阻值。在实际操作中,为了减小由于电表内阻以及原来电路结构改变带来的影响,又把伏安法分为内接法和外接法,但内、外接法也避免不了误差,使测量精度不高。本文将在伏安法的基础上讨论消除系统误差的实验方法,使测量达到更高要求。
According to Ohm’s law, volt-ampere resistance can be measured. In practice, in order to reduce the impact of the meter internal resistance as well as the original circuit structure changes, but also the volt-ampere method is divided into the internal method and the external method, but the internal and external methods can not avoid the error so that the measurement accuracy is not high. This article will discuss the elimination of systematic errors on the basis of the voltammetry, so that the measurement to meet the higher requirements.