摘要
本文着重分析了精密交流功率测量中拍频产生的原因,分析了拍频造成的测量误差,建立了该误差的数学模型,并且从设计精密交流功率表的角度提出了克服拍频误差的方法.
The paper principlly analyses the cause of frequency-differenceerror in AC electric power measurement, establishes mathematical equations of the error, and offers severel methods of overcoming frequency- difference-error in regard to designing AC watt meter.
