摘要
以半导体激光为光源 ,建立了一个可以实时测量空气中尘埃粒子的尺寸与颗粒数浓度的光学系统。根据Mie散射理论 ,计算了该光学系统的光散射响应特性。实验结果表明 ,该系统具有高的计数准确度、计数效率和计数重复性 ,适用于洁净度检测和环境空气中尘埃粒子的粒径分布测量。
A laser-diode based optical system which can measure aerosol particle size and concentration was described. The light scattering response characteristics of the system were calculated, based on Mie light scattering theory. The experimental results show that the system has high counting accuracy, efficiency and reproducibility. The system is suitable for verification of cleanliness class and measurement of ambient aerosol size distribution.
出处
《中国激光》
EI
CAS
CSCD
北大核心
2002年第12期1117-1121,共5页
Chinese Journal of Lasers
关键词
尘埃粒子
半导体激光
散射测量
光散射
Aerosols
Light scattering
Optical variables measurement
Particle size analysis
Semiconductor lasers
