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

• 论文 • Previous Articles    

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.   

  1. (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:

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

CLC Number: