摘要
通过共振干涉法对声速测量的实验进行研究,结果表明:示波器上显示的是余弦信号而不是驻波信号,接收端移动半个波长时接收信号变化一个周期,同时信号振幅总是不为零.
The measurement of sonic velocity is studied in the experiment by means of resonance interference.The following are the results:This is cosine signal not standing wave signal in the oscilloscope;The receptive signal wave is in cyclical variations when the receptive equipment is moved half wavelength and the swing id not zerowherever the receptive equipment is.
作者
罗志娟
段永法
何艳
喻莉
Luo Zhijuan;Duan Yongfa;He Yan;Yu Li(Department of the Basics,Air Force Early Warning Academy,Wuhan,Hubei 430019)
出处
《物理通报》
2019年第7期101-103,共3页
Physics Bulletin
关键词
声速测量
共振干涉法
驻波
sonic velocity measurement
resonance interference
standing wave
