大学物理 ›› 2020, Vol. 39 ›› Issue (07): 32-35.doi: 10.16854 / j.cnki.1000- 0712.190304

• 物理实验 • 上一篇    下一篇

李萨如图形稳定性的数值研究

霍伟刚,王楚涵,王玉新,丛晓梅   

  1. 辽宁师范大学物理与电子技术学院,辽宁大连 116029
  • 出版日期:2020-07-20 发布日期:2020-07-22

Numerical studies of stability of Lissajous figure

HUO Weigang,WANG Chuhan,WANG Yuxin,CONG Xiaomei   

  1. School of Physics and Electronic Technology,Liaoning Normal University,Dalian,Liaoning 116029,China
  • Online:2020-07-20 Published:2020-07-22

摘要:

利用数值模拟的方法研究了扫描信号相位变化率和频率相对改变量对李萨如图形稳定性的影响.发现在扫描信号

频率比固定的情况下,随扫描信号相位变化率的增加,李萨如图形稳定性减小;在固定的相位变化率下,李萨如图形稳定性随频率的相对改变量增加而减小. 这与实验结果完全一致.

Abstract:

The influences of the relative phase variation ratio and the frequency change on the stability of Lissajous figure are investigated by using numerical simulation. The results show that the stability of Lissajous figure decreases with the increase of the relative phase variation ratio at a fixed frequency ratio;at a fixed relative variation ratio of the phase difference,the stability of Lissajous figure increases with the decrease of the relative change frequency. These are in good agreement with the experimental results. So,the stable Lissajous figure can be obtained under low frequency and an unchangeable relative phase variation ratio.