机械驻波的电学方法演示

THE DEMONSTRATION OF THE MECHANICAL STANDING WAVES BY THE METHOD OF ELECTRICITY

驻波现象的演示，常是采用系在一水平细绳上的音叉的振动，观察波在细绳中的传播．本文介绍利用交流电演示驻波现象的方法，其效果更为明显．

Usually the demonstration of a mechanical standing waves is done by the method of a thin string connected with tuning fork, the demonstration effects are not obvious. The demonstration effects of the mechanical standing waves by the method of alternating current is more obvious.