摘要
对现有多普勒效应演示仪进行了改进.改进后的演示仪利用偏心电机带动振子振动,作为演示仪的振源,使振子在水槽来中水平移动进而获得多普勒效应.同时,为了方便观察,使用了频闪光源和45°平面镜将多普勒效应图像呈现在竖直毛玻璃屏上.
Aiming at the existing shortcomings of the Doppler effect demonstrator,an improved measure was adopted.The improved demonstrator used eccentric motor to drive the vibrator as vibration source,and made the vibrator move in the horizontal direction in the sink.Then the Doppler effect was observed.In order to observe conveniently,a flash source and a 45°mirror were used to display the Doppler effect on the frosted glass.
出处
《物理实验》
2018年第2期57-58,62,共3页
Physics Experimentation
基金
四川省研究生教育改革创新项目(No.川学位[2014]1号)
关键词
多普勒效应
振子
振源
Doppler effect
vibrator
vibration source
