基于李萨如图形的精确测量初相位差研究

Accurate measurement of initial phase difference by Lissajousfigure

提出了通过李萨如图形来获取合成图形所用2个垂直信号的初相位差的方法,并在实验中进行验证.结果表明,对于特定的李萨如图形,将可能有多个初相位差值.同时,实验结果与理论分析结果基本一致.该研究结果,可以获取合成李萨如图形所用信号的参数信息,因此既丰富了大学物理实验课的学习内容,也可为电子测量领域中获取两电信号初相位差信息提供参考.

A method of measuring the initial phase difference of two perpendicular signals by Lissajous figure was proposed.The experimental results showed that there were always multiple initial phase differences for a specific Lissajous figure.The results of this study could obtain as much information as possible about the parameters of the signals used to synthesize Lissajous graphs.Therefore,on the one hand,it enriched the contents of university physics experiment course,on the other hand,it could also provide reference for obtaining of the initial phase difference information of two electrical signals in the field of electronic measurement.