摘要
采用多波长激光同时与火灾烟雾和非火灾气溶胶相作用 ,研究了火灾烟雾对多波长激光的衰减特性 ,得到了熏香烟雾和柴油明火烟雾等 5种典型火灾烟雾和非火灾气溶胶的 3对波长消光系数比的数值 .结果表明 ,消光系数比反映了气溶胶粒子对两个波长激光衰减的相对程度 ,仅与气溶胶的本质特征有关 。
Laser lights with different wavelengths were used to study the attenuation characteristics of fire smoke through considering the laser interaction with fire smoke and non-fire aerosol at the same time. Three pairs of extinction coefficient ratio(ECR) for five kinds of typical fire smoke and non-fire aerosol, including incense smoke and diesel-flame smoke, etc. I were obtained. It was shown that ECR reflects the relative extinction degree of lasers with two different wavelengths, so that ECR is only dependent on the basic characteristics of aerosols, irrespective of the concentration of aerosols. Different smoke aerosols will have evidently different ECR.
出处
《红外与毫米波学报》
SCIE
EI
CAS
CSCD
北大核心
2002年第3期221-224,共4页
Journal of Infrared and Millimeter Waves
基金
中国科学院知识创新工程资助项目~~
