【摘要】 本文在几何光学近似Mie散射理论的基础上建立了一种计算激光多普勒信号中相位差与粒径关系的数学模型 .对几种常用的相对折射率情况下的相差 -粒径特性进行了计算 ,分析并给出了光学系统的最佳配置 .计算结果与Mie散射理论的计算结果进行了对比 ,有很好的一致性 .更多还原

【Abstract】 Based on the theory of Mie Scattering and its geometrical approximation, a mathematical model for calculation the relationship between the phase differences in Doppler signal and particle size to be measured is established.Several examples for the relationship under common relative refractive indecis are calculated, and the optimum optical arrangement in application is suggested.The results of calculation are compared with what is given by Mie theory.Good agreement is shown.更多还原