摘要
研制了一种动态磁滞回线测量仪。用单片机采集和处理数据,用点阵液晶显示,离散测量动态磁滞回线和初始磁化曲线,揭示磁滞回线的形成过程和特征。显示的磁滞回线可通过按键放大或缩小,可用光标逐点读取磁场强度和磁感应强度。该测量仪测量准确,操作方便,教学效果好。
An instrument for measuring dynamic hysteresis loop is developed.The microcontroller is used to collect and process data.A graphic LCD is used as a screen.The dynamic hysteresis loop and initial magnetization curve are measured discretely to illustrate the formation and characteristic of the hysteresis loop.The displayed hysteresis loop can be zoomed in or out by the keys of the microcontroller,and the magnetic intensity and magnetic induction intensity of each point on the hysteresis loop can be read by the cursor.This instrument has advantages of higher accuracy,simpler operation and better teaching effect.
出处
《实验室科学》
2010年第5期153-155,共3页
Laboratory Science
基金
广东省物理实验教学示范中心项目(2009)
关键词
磁滞回线
测量
单片机
hysteresis loop
measurement
microcontroller
