【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 ,其响应特性曲线更接近于人体对呼吸性粉尘的采集效率更多还原

【Abstract】 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.更多还原