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科技导报  2014 

一种基于Mie散射的颗粒物浓度测量方法

DOI: 10.3981/j.issn.1000-7857.2014.18.002, PP. 22-25

Keywords: Mie散射理论,消光定律,连分式递推算法,三波长法,水溶胶

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Abstract:

根据Mie散射理论,采用连分式递推算法,进行了微粒散射的数值模拟。借助特殊函数库得出简化的Mie散射理论的数值模拟方法,省去了推导的复杂性,同时提高了计算程序运算速度。利用水溶胶模拟大气溶胶进行光散射实验,采用三波长法计算得到各样本的平均粒径,根据消光定律模拟出微粒浓度与光强变化之间的关系,为空气中微粒浓度的测量提供了理论依据。

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