摘要
法拉第电磁感应定律及其应用是电磁学中的重要内容。本文设计制作了一种新型电磁感应定律实验装置,该装置主要由摆、亥姆霍兹线圈、探测线圈、数据采集电路组成,利用LabVIEW虚拟仪器技术进行数据的采集、存储与实时显示,利用Matlab软件编程对产生的周期性感应电动势脉冲信号进行分析,为定量验证电磁感应定律和磁场测量实验提供了一种新的方法。该装置实验内容丰富,结构简单,操作便捷,制作成本低,在物理实验教学中具有一定的推广价值。
Faraday’s law of electromagnetic induction and its application are important contents in electromagnetics. This paper reports the design of a novel experimental device, which is composed of a pendulum, Helmholtz coils, detection coils, and a data acquisition circuit. It uses LabVIEW’s virtual instrument technology for data acquisition, storage and real-time display, and Matlab software programming for analysis of the generated periodic pulse signal. This device provides a new method for quantitatively verifying the law of electromagnetic induction and magnetic field measurement experiment. The device has many advantages such as abundant features for experiments, simple structure, convenient operation, low production cost. It is a valuable facility for teaching class of physics experiments.
作者
孔令之
赵润卓
高天宇
史雨
王玥
钱钧
惠王伟
孙海英
王槿
KONG Lingzhi;ZHAO Runzhuo;GAO Tianyu;SHI Yu;WANG Yue;QIAN Jun;HUI Wangwei;SUN Haiying;WANG Jin(School of Physics,Nankai University,Tianjin 300071;National Demonstration Center for Experimental Physics Education,Nankai University,Tianjin 300071)
出处
《物理与工程》
2021年第6期84-91,共8页
Physics and Engineering
基金
2020高等学校教学研究项目(DJZW202010hb)
国家基础科学人才培养基金项目(J1210027)
南开大学物理基地能力提高项目(J1103208)。
关键词
法拉第电磁感应定律
亥姆霍兹线圈
摆
定量分析
Faraday's law of electromagnetic induction
Helmholtz coils
pendulum
quantitative analysis