Cosine error correction of solar radiation observation instrument

被引：0

作者：

Zheng R. ^{[1
]}

Zhang G.-Y. ^{[1
,2
]}

Gao Y. ^{[3
]}

Yang L.-Y. ^{[1
]}

Xu Y.-G. ^{[4
]}

机构：

[1] Photoeletric Engineering College, Changchun University of Science and Technology, Changchun

[2] Key Laboratory of Photoelectric Measurement & Optical Information Transmission Technology of Ministry of Education, Changchun

[3] Changchun Railway Vehicles Co., LTD, Changchun

[4] Jiangsu Radio Scientific Institute Co., LTD, Wuxi, 214000, Jiangsu

来源：

Guangzi Xuebao/Acta Photonica Sinica | 2016年 / 45卷 / 01期

关键词：

Cosine corrector; Cosine error correction; Fresnel reflection; Simulation analysis; Solar radiation observation instrument;

D O I：

10.3788/gzxb20164501.0112004

中图分类号：

学科分类号：

摘要：

In order to improve measurement accuracy of solar radiation observation instrument, aiming at cosine error caused by characteristics of diffusion and Fresnel diffraction, a method of correcting cosine in case of different installation forms and different structures was researched. Considering the solar radiation characteristics and cosine corrector production factor, cosine error correction method was proposed in installation forms of cosine error exposed and cosine error exposed cooperating stop ring, while the method in two structures of cosine corrector and integral cavity was proposed. According to the requirements, cosine error was modulated and simulated by different installation methods by TracePro software. Using high collimation solar simulator, turntable and rotating arm, different directions sunlight were simulated, and the cosine error was measured. The results show that in the installation forms of cosine error exposed cooperating stop ring, the incident angle is less than ±80, the cosine error is better than 6%. The correction method can reduce cosine error effectively with the condition of large incident angle, and improve the accuracy of solar radiation observation. © 2016, Science Press. All right reserved.

引用

页数：6

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