Journal of Atmospheric and Environmental Optics, Volume. 8, Issue 3, 232(2013)
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 on 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 carried out. 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.
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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
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Received: Feb. 25, 2013
Accepted: --
Published Online: Aug. 5, 2013
The Author Email: Wen-wei LI (mosmore@163.com)