This article studies the main content and the conclusion are as follows:1. High visible laser interference patterns from liquid surface acoustic waves (SAW) at a few tens Hertz were obtained experimentally.

• 本文研究的主要内容和结论如下:1 对于频率为几十赫兹的液体表面声波(surface acoustic waves,SAW),观察到反射光所形成的稳定、清晰的激光干涉图样。