液体表面波衍射条纹强度不对称性与频率的关系

采用激光衍射法获得了低频液体表面波衍射条纹，并对衍射条纹强度不对称性的影响因素进行了分析，发现其明显程度随表面波频率的增大而非线性增加。自组实验测量系统、自行设计实验方法获得液体表面频率在160Hz-250Hz变化时的衍射图样，利用光强分布软件对所得图样进行处理得到了衍射条纹强度不对称性与表面波频率的关系，实验与理论吻合。

The Relationship between the Intensity Asymmetry of Diffraction Patterns from Liquid Surface and the Frequency

In experiment, using the laser diffraction method, we obtained diffraction patterns from low-frequency liquid surface waves. Meanwhile, we analyzed the influencing factors of the stripe intensity asymmetry. Finding that the intensity asymmetry of diffraction patterns from liquid surface enhanced along with the increasing frequency. We got different diffraction patterns with the frequency 160Hz- 250Hz by designing experiment methods.Finally,we obtained the relationship between the frequency and the intensity asymmetry of diffraction patterns, with the light intensity distribution cryoscope analysis system. Theory and experiment are identical with each other.