Development of flux density distribution measurement system based on CCD
Development of flux density distribution measurement system based on CCD
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发表时间：
2008
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通讯作者：
Yu Tian-he
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作者：
Yu Tian-he
设计并研制了一种旋转抛物面聚光器光斑密度分布测量系统。利用朗伯靶和CCD摄像机，采用间接法拍摄聚光器焦面和其他散焦平面上的分布图像，由计算机进行存储和处理。介绍了系统的标定方法，给出了焦面光斑分布图。并将测量结果与蒙特卡洛法计算结果进行了比较。最后，分析了系统的主要误差。实验结果表明，聚光器焦面光斑密度测量误差为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%.