气泡的散射光与气泡尺寸分布

从几何光学的角度出发分析了气泡对光的散射,得出散射光强的波动特性与气泡的直径存在一定的关系。利用这个关系,采用光强探测法,对穿过模拟尾流气泡幕的光强进行了采集,通过对光强波动的分析推得了尾流中气泡尺寸的大小以及分布情况。与以前的探测方法相比,具有简便、数据量小等优点。

Scatter light of bubble and the distribution of bubble size

The scattering light of bubble is analysed from the point of view of geometry optics,from which it is concluded that the fluctuation of light intensity has some relation with the diameter of bubbles.Using this relation and adopting the light intensity detecting method,the light intensity through the wall of bubbles is collected,the dimension of bubbles and its distribution is deduced based on the analysis of fluctuatation of light intensity.This method is brief and needs less data than other detecting methods.