摘要
介绍了利用光散射来测量粉尘尘粒的浓度的原理和方法。其中主要讨论了基于Lambert-Beer定律消光的方法来测量的原理和基于米氏散射 (Mietheory)的方法进行测量的原理。并且比较了两种方法用于测量的情况。然后对于将实际粉尘尘粒按照服从一定分布模式 (假设粉尘粒子服从Rosin -Rammler分布 )进行计算和将粉尘粒子看作是单一粒径的粒子群进行计算时的差别进行了分析比较。最后以煤粉为例 ,用计算机做了模拟分析和计算 。
This paper described the methods of measuring the powder concentration with scattering theory. We mainly discussed and compared the measuring methods with the extinction theory and Mie theory. Compared with the result which was worked out with the powder particles whose size are single, we analyzed the result worked out with the powder particles whose size obey some function. The Rosin-Rammler function is introduced to describe concentration and mean diameter. The difference between these two results was disussed. Then we simulated the result about coom by computer. The result is shown by the chart given.
出处
《重庆大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2003年第6期30-31,48,共3页
Journal of Chongqing University
