A Rapid Inductance Estimation Technique By Frequency Manipulation

摘要

Inductors or coils are one of the basic electronics elements. Measurement of the inductance values does play an important role in circuit designing and evaluation process. However, the inductance cannot be measured easily like resistor or capacitor. Thus, here would like to introduce an inductance estimation technique which can estimate the inductance value in a short time interval. No complex and expensive equipment are involved throughout the measurement. Instead, it just required the oscilloscope and function generator that is commonly available in most electronic laboratory. The governed theory and methods are being stated. The limitation of the method is being discussed alongside with the principles and computer simulation. From the experiment, the error in measurement is within 10%. This method does provide promising result given the series resistance of the inductor is small and being measured using proper frequency.