摘要
将演示实验电子荷质比只能手动测量荷值比改造为基础物理实验,不仅能手动测量电子荷值比,还能自动测量电子荷值比、电子束在电场中的偏转,展示示波器功能等内容,扩展了实验内容,增加实验测量的手段,改进实验教学方法,培养学生多种分析问题和处理问题的能力。
The demonstration experiment of charge-mass ratio which can only be measured manually is transformed into basic physics experiment.It can not only measure the electronic charge ratio manually,but also measure the electronic charge ratio automatically,measure the deflection of electron beam in electric field,display the function of oscilloscope and so on.It expands the experimental content,increases the means of experimental measurement,improves the experimental teaching method,and trains students to analyze various problems.Ability to deal with problems.
作者
罗志高
LUO Zhigao(Public Experimental Teaching Center,Sun Yat-sen University,Guangzhou 510006,China)
出处
《大学物理实验》
2019年第5期9-12,共4页
Physical Experiment of College
基金
2018年广东省高等教育教学研究和改革项目(68000-18842591)
关键词
电偏转
电子荷质比
自动测量
汤姆逊管
deflection of electron beam in electric field
electron charge-to-mass ratio
automatic measurement
Thomson tube
