粉末气溶胶红外消光作用的试验与理论分析

An Analysis of a Test and a Theory of the Infrared Extinction Effect of Powder Aerosol

从气溶胶光电干扰的角度出发简单叙述了气溶胶的形成过程 (分散法和凝聚法 )和试验研制的气溶胶的基本特征 ,并对气溶胶抑制红外辐射的机理 (散射和吸收 )作了简单分析 ,测试研究了试验用粉末气溶胶两个厚度下的衰减效果 ,理论上尝试了两种分析气溶胶遮蔽效果的计算方法 (瑞利散射和 Mie散射 )。最后应用瑞利散射理论 ,尝试计算了粉末气溶胶的遮蔽效果 ,在一定范围内 。

The formation process of aerosol (dispersoid and coagel) and the basic characteristics of the modulated aerosol according to its electro optical jamming are simply described.This paper simply analyses its obstructive mechanism of infrared radiation extinction(scattering and absorption),and tests the powder aerosol attenuation under two kinds of thickness.Two theoretic methods (Rayleigh Scattering and Mie Scattering theories ) of analyzing the effects of the aerosol extinction are proposed.In the end,the extinction effects of the aerosol extinction is also calculated by using Rayleigh Scattering theories.Within limits,the theoretical results closely fit the experimental results.