文献类型：期刊文献

中文题名：结合传感器的磁滞回线实验可视化演示

英文题名：Visual Demonstration of Hysteresis Loop Experiments with Sensors

作者：李明达[1];朱云霞[1];高建平[1];罗锻斌[1]

机构：[1]华东理工大学物理系

年份：2019

卷号：32

期号：3

起止页码：103

中文期刊名：大学物理实验

外文期刊名：Physical Experiment of College

基金：华东理工大学2018年度本科实验实践教学改革与建设项目(BK0121004)

语种：中文

中文关键词：退磁;磁滞回线;传感器;演示

外文关键词：demagnetization;hysteresis loop;sensor;demonstration

摘要：利用电压、电流传感器,通过数据采集装置和计算机,对铁磁材料磁滞回线测量实验仪进行改进。改进后的仪器能够将励磁电流和铁磁材料中的磁感应强度实时显示出来,使得我们能够在该实验教学过程中,把实验中的磁锻炼、退磁、磁化曲线以及磁滞回线的测量过程以图像化的方式演示出来,即方便了教师的操作演示也有利于学生对实验的理解。
The experimental instrument for measuring magnetic hysteresis loops of ferromagnetic materials is improved by using voltage and current sensors,data acquisition devices and computers.The improved instrument can display the excitation current and the magnetic induction intensity in ferromagnetic materials in real time,which makes it possible for us to demonstrate the measurement process of magnetic exercise,demagnetization,magnetization curve and hysteresis loop in the experiment in a visual way in the course of the experiment teaching,which facilitates the operation demonstration of teachers and is also helpful for the students to understand the experimental difficulties.