高倍汇聚辐射光斑能流分布测量方法研究  

A flux measurement for high-magnification convergent radiation spots

作　　者：魏秀东 赵宇航 张亚南 许英朝 WEI Xiu-dong;ZHAO Yu-hang;ZHANG Ya-nan;XU Ying-chao(Institute of Space Optoelectronics Technology,Changchun University of Science and Technology,Changchun 130022,China;CGN New Energy Holdings Co.,Ltd.,Beijing 100000,China;School of Optoelectronics and Communication Engineering,Xiamen University of Technology,Xiamen 361024,China)

机构地区：[1]长春理工大学空间光电技术研究所,吉林长春130022 [2]中国广核新能源控股有限公司,北京100000 [3]厦门理工学院光电与通信工程学院,福建厦门361024

出　　处：《中国光学（中英文）》2023年第3期620-626,共7页Chinese Optics

基　　金：福建省自然科学基金面上项目(No.2019J01876)。

摘　　要：本文提出了一种高倍汇聚辐射光斑能流分布测量新方法,采用辐射能流传感器测量光斑不同位置的能流密度,通过多项式拟合光斑不同位置的灰度与能流密度标定曲线,最终获得辐射光斑的能流分布,并详细阐述了辐射光斑能流分布的测量原理。为了验证测量方法的准确性和可行性,进行了高倍汇聚辐射光斑能流分布测量实验,并与辐射能流传感器测量结果进行比较。结果表明:该测量方法的测量结果与辐射能流传感器的直接测量结果一致,测量偏差小于0.54%,通过分析得出该测量方法的测量不确定度为4.35%,测量准确度较传统测量方法有所提高,满足实际应用需求。A new method for measuring the flux distribution of a high-magnification convergent radiation spot is proposed.A radiation flux sensor is used to measure the flux density at different positions of the spot,and the calibration curve of the grayscale and flux density at different positions of the spot is fitted by a polynomial,and finally the flux distribution of the radiation spot is obtained and its principle is also elaborated.In order to verify the accuracy and feasibility of the measurement method,a high-magnification convergent radiation spot flux distribution measurement experiment is carried out,and the results are compared with the direct measurement results from the radiant flux sensor.The results show that the measurement results of the proposed method are consistent with the direct measurement results,and the average deviation is less than 0.54%.Through analysis,the measurement uncertainty of this measurement method is 4.35%,and the measurement accuracy is higher than the traditional measurement method.The experimental results indicate that the proposed method can meet the needs of practical applications.

关 键 词：测量系统 辐射光斑 能流分布 摄影测量法 能流密度 

分 类 号：TK313[动力工程及工程热物理—热能工程] TK519