The method of measuring inductance by charging or discharging the inductor is described. Its principle is that the inductor charging or discharging is controlled by the switched circuit,then the inductive voltage and current waveforms are observed from the oscilloscope, and the characteristics of inductor is analyzed. According to the principle, a test circuit is designed to measure the I-shaped core inductor, the measuring range is 20 ~ 1000 ΜH, and deviation is less than 10%%介绍一种向被测电感充放电来测量电感值的方法.其原理是用开关电路控制电感充放电,通过示波器观察电感的电压电流波形,分析电感的特性.按该原理设计了试验电路,并用来测量工字形电感,测量范围为20～1000μH,偏差小于10％.
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