基于气垫导轨的法拉第电磁感应实验装置设计  

Design of Faraday electromagnetic induction experiment device based on air track

作　　者：杜苛 赵洪祎 胡祺波 范雪松 曲君华 樊振军 赵长春 蒋芸 DU Ke;ZHAO Hongyi;HU Qibo;FAN Xuesong;QU Junhua;FAN Zhenjun;ZHAO Changchun;JIANG Yun(School of Sciences,China University of Geosciences,Beijing 100083,China)

机构地区：[1]中国地质大学(北京)数理学院,北京100083

出　　处：《实验室科学》2023年第3期164-166,171,共4页Laboratory Science

基　　金：教育部高等学校教学研究项目(项目编号:DWJZW202112hb);中国地质大学(北京)大学生创新和创业项目(项目编号:S202111415132)。

摘　　要：设计了一种可以定量演示和验证法拉第电磁感应现象的实验装置,该装置利用气垫导轨控制装载了磁铁的小车的速度,可以排除不可控因素对条形磁铁速度的影响。同时使用弱电流采集模块记录整个过程感应电流的数据,当固定在小车上的条形磁铁以不同的速度穿过线圈时,弱电流采集模块测量并记录下整个过程的感应电流。通过将电磁现象与牛顿力学规律相结合进行分析,从而可以对法拉第电磁感应现象进行直观的观察及更为准确的定量验证。An experimental device which can quantitatively demonstrate and verify Faraday electromagnetic induction phenomenon is designed.The device uses air track to control the speed of the trolley loaded with magnet,and can eliminate the influences of uncontrollable factors on the speed of bar magnet.At the same time,the weak current acquisition module is used to record the data of the induced current in the whole process and when the bar magnet fixed on the car passes through the coil at different speeds,the weak current acquisition module measures and records the induced current of the whole process.By combining electromagnetic phenomenon with Newton s law of mechanics,the Faraday electromagnetic induction phenomenon can be observed directly and can be checked more accurately.

关 键 词：法拉第电磁感应定律 气垫导轨 弱电流采集模块 

分 类 号：O441.3[理学—电磁学]