磁滞回线数据自动采集的实验方法  

Experimental Method on Automatic Acquisition of Hysteresis Loop Data

作　　者：张雪华[1] 刘韩 李红[1] 郑利敏 杨林峰[1] Zhang Xuehua;Liu Han;Li Hong;Zheng Limin;Yang Linfeng(College of Science,Zhongyuan University of Technology,Zhengzhou,Henan 450007)

机构地区：[1]中原工学院理学院,河南郑州450007

出　　处：《物理通报》2021年第6期96-99,共4页Physics Bulletin

摘　　要：基于Labview虚拟平台和磁滞回线测量的基本原理,通过USB接口技术实现示波器和PC机的交互式通讯,实现磁滞回线实验数据的自动化采集和信号处理,为铁磁材料磁滞回线的测量提供了一种快速有效的方法.基于现有的实验装置进行设计,在文中系统地展示了在特定输入电压下,磁滞回线特性随外接电阻的变化规律以及磁性材料励磁和去磁过程特性的异同.Based on the X virtual platform and the basic principle of hysteresis loop measurement,the interactive communication between oscilloscope and PC is realized through USB interface technology.The automatic acquisition and signal processing of hysteresis loop experimental data are realized.A fast and effective method is provided for the measurement of hysteresis loop of ferromagnetic materials.Based on the designed experimental device,this paper systematically studies the hysteresis under specific input voltage The variation of return line characteristics with external resistance and the similarities and differences between excitation and demagnetization of magnetic materials.

关 键 词：磁滞回线 铁磁材料 示波器 励磁 退磁 

分 类 号：TM936.3-33[电气工程—电力电子与电力传动] TP274.2[自动化与计算机技术—检测技术与自动化装置]