Acta Optica Sinica, Volume. 33, Issue 8, 812004(2013)
Research on System Level Calibration Method of Multi-Band Filter Radiometer
To meet the requirement of high-precision radiation calibration for remote sensor and to achieve the radiance transfer chain “cryogenic radiometer→ multi-band filter radiometer→ integrating sphere → remote sensor”, a calibration method of multi-band filter radiometer is developed. In this method, the uniform, stable and unpolarized surface source is acquired from the tunable laser-illuminated integrating sphere, and the standard radiance detector that is traced from the cryogenic absolute radiometer is used as transferring standard, and the absolute spectral radiance responsibility of a multi-band filter radiometer is obtained at 753, 865, 900 and 1030 nm by the system level calibration, and the calibration uncertainty is below 0.58%. The multi-band filter radiometer and the solar radiometer CIMEL CE318 which is traced from blackbody radiation in France are used to measure radiance of integrating sphere respectively, and the results show that the differences of the four calibration bands are -0.216%, -2.564%, -4.248% and 2.226%, which validate the rationality of the calibration method.
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Zhang Yanna, Zheng Xiaobing, Li Jianjun, Zhang Wei. Research on System Level Calibration Method of Multi-Band Filter Radiometer[J]. Acta Optica Sinica, 2013, 33(8): 812004
Category: Instrumentation, Measurement and Metrology
Received: Mar. 13, 2013
Accepted: --
Published Online: Jul. 16, 2013
The Author Email: Yanna Zhang (zynbao@mail.ustc.edu.cn)