RLC串联电路暂态过程时间常数的测量与修正

摘要

It analyzes cause of deviation between experiment measured value of time constant and theoretical one in transient process of RLC series circuit.The loss resistance of inductor and capacitor is measured by the sinusoidal wave of the same frequency as the oscillating one of the underdamped oscillating wave.The theoretic value of time constant is corrected,and the agreement between the corrected theoretic value of time constant and the measured one can be obtained.%本文分析了RLC串联电路暂态过程时间常数τ的实验测量值与理论值偏差的原因,以频率为振荡频率的正弦波代替欠阻尼振荡波,测出电路电容和电感上的损耗电阻,对时间常数的理论值进行修正,可使τ的理论修正值与实验测量值基本吻合。