Research on the method of establishing the total radiation meter calibration device

Jianqiang Gao; Ming Xia; Junwen Xia; Dong Zhang

doi:10.1117/12.2199867

8 October 2015 Research on the method of establishing the total radiation meter calibration device

Jianqiang Gao, Ming Xia, Junwen Xia, Dong Zhang

Proceedings Volume 9677, AOPC 2015: Optical Test, Measurement, and Equipment; 96771V (2015) https://doi.org/10.1117/12.2199867
Event: Applied Optics and Photonics China (AOPC2015), 2015, Beijing, China

Abstract

Pyranometer is an instrument used to measure the solar radiation, according to pyranometer differs as installation state, can be respectively measured total solar radiation, reflected radiation, or with the help of shading device for measuring scattering radiation. Pyranometer uses the principle of thermoelectric effect, inductive element adopts winding plating type multi junction thermopile, its surface is coated with black coating with high absorption rate. Hot junction in the induction surface, while the cold junction is located in the body, the cold and hot junction produce thermoelectric potential. In the linear range, the output signal is proportional to the solar irradiance. Traceability to national meteorological station, as the unit of the national legal metrology organizations, the responsibility is to transfer value of the sun and the earth radiation value about the national meteorological industry. Using the method of comparison, with indoor calibration of solar simulator, at the same location, standard pyranometer and measured pyranometer were alternately measured radiation irradiance, depending on the irradiation sensitivity standard pyranometer were calculated the radiation sensitivity of measured pyranometer. This paper is mainly about the design and calibration method of the pyranometer indoor device. The uncertainty of the calibration result is also evaluated.

Citation Download Citation

Jianqiang Gao, Ming Xia, Junwen Xia, and Dong Zhang "Research on the method of establishing the total radiation meter calibration device", Proc. SPIE 9677, AOPC 2015: Optical Test, Measurement, and Equipment, 96771V (8 October 2015); https://doi.org/10.1117/12.2199867

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KEYWORDS

Calibration

Solar radiation

Meteorology

Mirrors

Solar energy

Metrology

Device simulation

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