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Temperature and nonlinearity correction methods for commercial CCD array spectrometers used in field
Author(s): Ling Li; Caihong Dai; Zhifeng Wu; Yanfei Wang
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Paper Abstract

CCD array based spectrometers are widely used in radiometric measurements. Ambient temperature and nonlinearity effects are significant factors for high accuracy measurement in the field. Here, a temperature correction method for the CCD array spectrometers was developed, which calculated the spectrometer response at each pixel. The deviation between measured and calculated spectrometer responses at a randomly selected temperature is less than 1%. In addition, the radiant power nonlinearity effects were investigated by supplementary-light methods. The gain settings nonlinearity effect was evaluated using FEL-type transfer standard lamps. The nonlinearity correction coefficients were calculated and analyzed based on the experiment, respectively.

Paper Details

Date Published: 24 October 2017
PDF: 7 pages
Proc. SPIE 10463, AOPC 2017: Space Optics and Earth Imaging and Space Navigation, 104631K (24 October 2017); doi: 10.1117/12.2285634
Show Author Affiliations
Ling Li, National Institute of Metrology (China)
Caihong Dai, National Institute of Metrology (China)
Zhifeng Wu, National Institute of Metrology (China)
Yanfei Wang, National Institute of Metrology (China)


Published in SPIE Proceedings Vol. 10463:
AOPC 2017: Space Optics and Earth Imaging and Space Navigation
Carl Nardell; Suijian Xue; Huaidong Yang, Editor(s)

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