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本文讨论了双层颗粒群产生的二次衍射,并给出了二次衍射复场分布的表达式,同时讨论了二次衍射与颗粒浓度之间的关系,找到了抑制二次衍射的最佳浓度。本文结论对于提高激光粒度仪的测量准确度具有重要意义。
In this paper, we discuss the second order diffraction caused by bilayer particle swarm and give the expression of second order diffraction complex field distribution. The relationship between second order diffraction and particle concentration is also discussed. concentration. The conclusion of this paper is of great significance to improve the measurement accuracy of laser particle sizer.