基于近红外窄波段光源的消光光谱粒径测量  

Particle Size Measurement of Extinction Spectrum Based on Near-Infrared Narrow Band Light Source

作　　者：李祥鹏 项华中[1] 郑刚[1] 陈明惠[1] 杨晖[1] Li Xiangpeng;Xiang Huazhong;Zheng Gang;Chen Minghui;Yang Hui(Shanghai Interventional Medical Device Engineering Research Center,University of Shanghai for Science and Technology,Shanghai 200093,China)

机构地区：[1]上海理工大学上海市介入医疗器械工程研究中心,上海200093

出　　处：《激光与光电子学进展》2022年第21期231-235,共5页Laser & Optoelectronics Progress

摘　　要：提出一种基于连续透射消光光谱的粒径测量方法。基于Mie散射理论和人工蜂群算法对颗粒粒径进行反演,结果表明,单峰分布时颗粒的体积频率分布曲线相对均方根误差(RRMSE)低至0.08%,双峰分布时颗粒的体积频率分布曲线RRMSE低至3.49%。用编号为GBW120134、GBW120024和GBW120041的聚苯乙烯乳胶标准颗粒进行了对比实验。结果表明,单峰分布时D50粒径的相对误差在10%以内,双峰分布时D50粒径的相对误差在20%以内。In this paper,a particle size measurement method based on continuous transmission extinction spectral is proposed.Based on Mie scattering theory and artificial bee colony algorithm for particle size inversion.The results show that the relative rootmeansquare error(RRMSE)of particle volume frequency distribution curve is as low as 0.08%for unimodal distribution,and the RRMSE of particle volume frequency distribution curve is as low as 3.49%for bimodal distribution.Comparative experiments are conducted with the standard polystyrene latex particles numbered GBW120134,GBW120024 and GBW120041.The results show that the relative error of D50 particle size is within 10%for unimodal distribution,and the relative error of D50 particle size is within 20%for bimodal distribution.

关 键 词：散射 消光法 光谱 粒径测量 人工蜂群算法 

分 类 号：O433[机械工程—光学工程]