软磁测试及分析系统设计

Design of soft magnetism measurement and analysis system

软磁材料制作的部件是诸多产品的核心部分,需测量以确定其性能和质量符合使用标准。本文介绍了一种以工业控制计算机为核心的软磁测试及分析系统,采用磁化软磁部件的方法,确定该材料的磁性能参数并绘制磁滞回线。该测试系统包括程控信号发生电路,主线圈功放电路,副线圈调理电路,数据采集模块和工业控制计算机,由C++编写的软件可计算软磁材料的磁性能参数并绘制磁化曲线。实践证明,本测试系统测试操作简单,精度和稳定性高。

Because soft magnetic material can make the core part of many industrial products,it＇s necessary to detect the part＇s performance and quality to fit the need.This paper indroduced a design of soft magnetism measurement and analysis system based on industrial computer which can get the magnetic parameters of the soft magnetic parts by magnetizing them and draw the magnetic hysteresis loop.The system consists of programmable signal generator,power amplify circuit,modulate circuit,data collecting module and industrial computer.The software programmed with C＋＋ can process the signal to get the parameters and draw the magnetic hysteresis loop.The system has been proved with high stability and accuracy meanwhile it＇s easy to handle it.