Design and Test of Automatic Sun-Tracking Device for Solar Irradiance Spectroradiometer

Journal of Atmospheric and Environmental Optics ›› 2013, Vol. 8 ›› Issue (3): 232-240.

Design and Test of Automatic Sun-Tracking Device for Solar Irradiance Spectroradiometer

In order to achieve high-precision observations of solar spectral irradiance, a method which combines solar motion trajectory tracking and four-quadrant detector based photoelectric tracking was adopted. The principles of solar motion trajectory tracking and the design of the tracking device based on four-quadrant detector were discussed in detail. To test the tracking precision of the device, a test system based on linear CCD was designed, and the outdoor experiment was done. The results show that the sun-tracking accuracy of the device is better than±0.030, and the stability is better than 1.4% , which meet the requirements of the high precision spectral irradiance observation.

（Key Laboratory of Optical Calibration and Characterization, Chinese Academy of Sciences, Hefei 230031, China）

Received:2013-02-25 Revised:2013-03-19 Online:2013-05-28 Published:2013-05-17

Abstract

Abstract:

Key words: solar irradiance, photoelectric tracking, four-quadrant detector, linear CCD

CLC Number:

P414.5

LI Wen-Wei, ZHANG Yan-Na, ZHENG Xiao-Bing, LI Xin, LIU En-Chao. Design and Test of Automatic Sun-Tracking Device for Solar Irradiance Spectroradiometer[J]. Journal of Atmospheric and Environmental Optics, 2013, 8(3): 232-240.

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