摘要
介绍一个驻波演示实验．让声波在充有可燃性气体的圆管中形成驻波，气体通过多孔燃烧时出现余弦分布的火焰包迹线，这个包迹线能把驻波显示出来．
A way for demonstration of standing waves is presented.In a tube full of combustible gas,sound wave is formed in standing wave. By means of multihole burner,an envelope curve of the flames emerges in the form of sinusoidal distribution.This envelope curve shows the standing wave.
出处
《大学物理》
北大核心
1996年第1期29-30,共2页
College Physics
关键词
驻波
包迹线
声学
standing waves
envelope curve
