激光技术2024，Vol.48Issue(5)：739-745,7.DOI:10.7510/jgjs.issn.1001-3806.2024.05.019
基于相关系数的生物散斑活性表征研究
Characterization of biospeckle activity based on correlation coefficient
摘要
Abstract
The measurement of traditional laser biospeckle is significantly affected by experimental parameters.To address this problem,dynamic light scattering and fluorescence correlation spectroscopy were used to characterize the biospeckle activity.An experimental setup was built and tested with traditional Chinese medicine syrup,yogurt,old yogurt,tomatoes,and apples.The results show that the constructed metric based on the correlation coefficient with a clear physical meaning is mainly determined by the speed of particle movement in the sample,which has an average error less than 5%.As the metric is almost independent of the exposure time of camera and region of interest,it is beneficial for the biospeckle technology to be used in practical applications.Since various characteristics of biological samples in the agricultural and pharmaceutical fields are related to the speed of particle movement,this method is expected to provide a new non-destructive testing tool for food and pharmaceutical industries.关键词
测量与计量/生物散斑活性/相关系数/特征时间Key words
measurement and metrology/biospeckle activity/correlation coefficient/characteristic time分类
数理科学引用本文复制引用
翟春婕,王新猛,薛晓明,唐寅,李浩..基于相关系数的生物散斑活性表征研究[J].激光技术,2024,48(5):739-745,7.基金项目
中央高校基本科研业务专项资金资助项目(LGZD202103) （LGZD202103）
国家自然科学基金资助项目(52106162) （52106162）
江苏省高校"青蓝工程"中青年学术带头人项目(苏教师函[2022]29号) （苏教师函[2022]29号）
教育部国家级一流本科专业建设项目(教高厅函[2019]46号) （教高厅函[2019]46号）
江苏省高校"青蓝工程"优秀教学团队项目 （）
