光学精密工程2017，Vol.25Issue(7)：1777-1782,6.DOI:10.3788/OPE.20172507.1777
气溶胶颗粒折射率在光学粒径测量中的影响
Impact of refractive index of aerosol particles on particle diameter optical measurement
摘要
Abstract
Regarding the negative effect of refractive index of particles in single particle light scattering measurement,the relationship curves between the scattering radiant flux F and the particle diameter D were calculated for 13 kinds of common aerosol particles at different light-receiving central angle θ and light-receiving half-angle β,according to the Mie theory and the light radiant flux calculation formula.Thereby an evaluation standard based on the average of the measured relative errors was presented and employed to evaluate the impact of 13 kinds of refractive index on the measurement quantitatively.Through the analysis of simulation results,it is concluded that if the light radiant flux received by the light-receiving system includes the forward scattered light,the F-D curves of 13 kinds of particles are close to each other,and the impact of refractive index in the measurement is remarkablely reduced.关键词
气溶胶颗粒/散射/折射率/采光参数/F-D曲线Key words
aerosol particle/scattering/refractive index/light-receiving parameter/F-D curve分类
数理科学引用本文复制引用
左晨泽,吕且妮,葛宝臻..气溶胶颗粒折射率在光学粒径测量中的影响[J].光学精密工程,2017,25(7):1777-1782,6.基金项目
国家自然科学基金资助项目(No.61275012) （No.61275012）
