摘要
设计并研制一套旋转抛物面聚光器聚焦光斑能流密度分布测量系统,采用朗伯靶和CCD照相机的非直接测量方法,摄取焦平面和各个离焦面的能流密度分布图,由计算机保存并对图像进行处理。介绍了系统的标定方法,给出焦平面处的光斑分布图,并与蒙特卡罗方法计算结果相比较,最后对系统的主要误差源进行分析,实验结果表明:能流密度总测量误差为6.85%。
A flux density distribution measurement system for rotating parabolic concentrators is designed and developed. The pictures of the distribution on focal plane and other defocused planes of the concentrator are taken by using an indirect method with a Lambert target and a CCD camera. The pictures are saved and processed by computer. The calibration method of system is introduced and the spot distribution picture of focal plane is presented. The measurement result is compared with the calculated result by Monte Carlo method. At last,the main system errors are analyzed. The experiment results show that the measurement error of flux density is 6.85 %.
出处
《光电子．激光》
EI
CAS
CSCD
北大核心
2008年第11期1507-1511,共5页
Journal of Optoelectronics·Laser
基金
国家重点基础研究发展计划资助项目(2003CB214500)
关键词
测量系统
能流密度
CCD
聚光器
measurement system
flux density
CCD
concentrator
