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BCY型直流电流比差测量仪是直接测量两个直流电流比例误差的新型仪器。本文对其工作原理及造成其测量误差的诸多因素进行了全面的分析,并讨论了用其作为计量标准设备检定直流电流比例仪器及分流器的方法。
BCY-type DC current ratio meter is a direct measurement of the proportion of the two DC current error of new instruments. This article has carried on the comprehensive analysis to its working principle and the many factors causing the measurement error, and discusses the method of using it as a standard equipment for checking the DC current proportional instrument and shunt.