摘要
本文较为详细地阐述了球形粒子和多层微球光散射的基本理论,利用这两种理论模型计算了包覆柴油和水等不同介质层前后石墨的质量消光系数.计算结果发现,在所计算的范围内,当石墨外层包覆水时,包覆的水会造成石墨粒子消光性能下降;当石墨外层包覆柴油时,在一定的范围内(主要受波长影响),包覆的柴油有助于提高石墨粒子的消光性能;而当包覆的柴油量超过一定的范围后,包覆的柴油会造成石墨粒子的消光性能下降.
In this paper, the basic theory of the light scattering of spheres and concentric microspheres is described in detail These two theoretical models are used to calculate the mass extinction coefficients of grapphite spheres, the grapphite spheres wrapped by diesel oil and the grapphite spheres wrapped by water. The calculation results show that when grapphite spheres are wrapped by water, their infrared extinction performance will be degraded; when they are wrapped by diesel oil, their infrared extinction performance will be improved depending on the wavelength. But if the amount of diesel oil wrapped on graphite spheres is beyond a certain range, the infrared extinction performance of graphite spheres would be degraded.
出处
《红外》
CAS
2007年第12期30-33,共4页
Infrared
关键词
MIE散射
多层球
质量消光系数
Mie＇s theory
concentric microspheres
mass extinction coefficients
