并在原实验装置的基础上，利用信号差分方法减少了光强波动对实验干涉谱图的影响，改善了信噪比。
Based on our previous setup, a signal differential module is introduced to reduce the noise rising from the fluctuation of the laser power to improve the quality of the experimental interferogram.
另外光源光强的波动对测量结果没有影响。
In addition, the measured result is free of the intensity fluctuation of light source.
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。
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.
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。
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.
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