雾滴谱仪的标准粒子计数校准测量与反演  

Calibration measurement and inversion of standard particle count for droplet spectrometer

作　　者：何香君 李鲁峣 唐成昊 唐程鑫 伍波[1,2] HE Xiangjun;LI Luyao;TANG Chenghao;TANG Chengxin;WU Bo(College of Optoelectronic Engineering,Chengdu University of Information Technology,Chengdu 610225,China;Key Open Laboratory of Atmospheric Sounding,China Meteorological Administration,Chengdu 610225,China)

机构地区：[1]成都信息工程大学光电工程学院,成都610225 [2]中国气象局大气探测重点开放实验室,成都610225

出　　处：《激光技术》2024年第2期255-260,共6页Laser Technology

摘　　要：为了提高国产雾滴谱仪的雾滴粒子粒径测量准确性,采用标准粒子进行雾滴谱的散射响应测试,并用最小均方算法对实际测量的雾滴谱的散射响应信号进行了反演,通过理论分析与实验验证,取得了最小均方算法在不同标准粒子响应信号下的粒径反演数据。结果表明,最小均方算法对标准粒子分布的反演能够减小粒径的分布误差,使不同尺寸的粒子得到准确区分,尺寸区分精度可以达到1μm。该研究为雾滴谱仪的精度提升提供了参考。In order to improve the measurement accuracy of droplet particle size of domestic droplet spectrometer,standard particles were used to test the scattering response of the droplet spectrum,and the least mean square algorithm was used to invert the scattering response signal of the actually measured droplet spectrum.Through theoretical analysis and experimental verification,the particle size inversion data of the least mean square algorithm under different standard particle response signals were obtained.The results show that the inversion of standard particle distribution by the least mean square algorithm can reduce the distribution error of particle size so that the particles of different sizes can be accurately distinguished.The size distinction accuracy can reach 1μm.This study provides a reference for improving the accuracy of the droplet spectrometer.

关 键 词：散射 雾滴谱仪 粒径反演算法 光学粒子计数器 

分 类 号：TN249[电子电信—物理电子学]