Journal of Atmospheric and Environmental Optics, Volume. 7, Issue 2, 139(2012)
Deviation Analysis Based on Four-Quadrant Detector for Sun-Tracking
To realize the automatic sun-tracking based on four-quadrant detector, the working principle of four-quadrant detector is firstly analyzed and the reason of selecting four-quadrant detector is explained. The setup based on four-quadrant detector for sun-tracking is introduced, the possibility of deviation influence, such as geometry position of the sun spot, installation position between aperture iris and four-quadrant detector is deeply investigated, the consistency between four-quadrant detector and its I-V conversion circuit is analyed, and the influence of consistency on tracking precision is evaluated. The reason and rationality of deviation existence on four-quadrant detector voltage for sun-tracking are introduced. The experiment demonstrated that the designed device based on four-quadrant detector is suitable for high-precision sun-tracking.
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LIU En-chao, WU Hao-yu, ZOU Peng. Deviation Analysis Based on Four-Quadrant Detector for Sun-Tracking[J]. Journal of Atmospheric and Environmental Optics, 2012, 7(2): 139
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Received: Apr. 6, 2011
Accepted: --
Published Online: Mar. 30, 2012
The Author Email: En-chao LIU (liuech@aiofm.ac.cn)