光学粉尘浓度测量仪响应特性曲线的计算与分析  

Response characteristic calculation and analysis of light scattering aerosol photometers

作　　者：黄惠杰[1] 路敦武[1] 赵永凯[1] 杜龙龙[1] 

机构地区：[1]中国科学院上海光学精密机械研究所,上海201800

出　　处：《光学仪器》1999年第6期31-35,共5页Optical Instruments

基　　金：中国科学院上海分院择优经费项目

摘　　要：根据 Mie散射理论计算了 5种光学粉尘浓度测量仪的光散射响应特性曲线 ,对照呼吸性粉尘在人体呼吸道中的沉降效率曲线 ,对这些光学粉尘浓度测量仪的响应特性进行了分析。得出的结论是 :采用近前向型光散射结构、多波长照明光源和大孔径散射光收集系统的光学粉尘浓度测量仪 。Response characteristics of five light scattering aerosol photometers are calculated according to Mie Theory,and analysis of these response characteristics are performed compared to the respirable dust collection efficiency curve defined by the American Conference of Governmental Industrial Hygienists (ACGIH). It is concluded that the response characteristics of photometers applying near forward scattering optics,multiple wavelength light source and larger collecting angles to scattered light,are closer to ACGIH respirable dust curve than that of others.

关 键 词：粉尘 光散射 粉尘浓度测量仪 响应特性曲线 

分 类 号：TH741[机械工程—光学工程]