电磁材料的电磁参数及测量

Magnetic Parameters of Magnetic Material and the Mathods to Measure Them

本文主要介绍了电磁材料的磁滞回线及电阻率与磁阻几种电磁参数以及它们的测量方法。用磁通计测量磁滞回线从而得到其他参数如饱和磁化强度、矫顽力以及磁导率等。凯尔文直流双臂电桥具有灵敏度高、读数准确和使用方便的优点,是测量材料电阻率和磁阻的有效工具。

This paper introduces some magnetic parameters of magnetic material,such as magnetic hysteresis loopline, electrical resistivity and magnetore - sistivity, and the methods to measure them. From the magnetic hysteresis loopline, we can know some other parameters such as saturated magnetizing strength, magnetic conductivity, etc. Kelvin bridge has the virtues of high sensitivity, precision reading and convenience to use. It is effective tools to measure the electrical resistivity and magnetoresistivity.