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介绍了激光散射法测量颗粒尺寸系统的工作原理和标定结果，并对液体环轴对称抛撒进行了光学测量。实验结果表明，液体环二次破碎产生云雾区的液滴Ｓａｕｔｅｒ平均直径在固定点随时间的增加呈减小的趋势，而云雾区的宽度和云雾区前缘的液滴颗粒的Ｓａｕｔｅｒ平均直径则随测量的距离增加均有所增加。
The working principle and calibration results of particle size system by laser light scattering are introduced. The optical measurement of symmetrical liquid droplet dispersion is carried out. The experimental results show that the Sauter mean droplet diameter decreases with increasing time, while the width of the cloud zone and the Sauter mean diameter of the droplet particles in the front of the cloud zone are As the measured distance increases are increased.