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24 October 2017 A calibration method of infrared LVF based spectroradiometer
Jiaqing Liu, Shunli Han, Lei Liu, Dexin Hu
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Proceedings Volume 10461, AOPC 2017: Optical Spectroscopy and Imaging; 104610K (2017) https://doi.org/10.1117/12.2283302
Event: Applied Optics and Photonics China (AOPC2017), 2017, Beijing, China
Abstract
In this paper, a calibration method of LVF-based spectroradiometer is summarize, including spectral calibration and radiometric calibration. The spectral calibration process as follow: first, the relationship between stepping motor’s step number and transmission wavelength is derivative by theoretical calculation, including a non-linearity correction of LVF;second, a line-to-line method was used to corrected the theoretical wavelength; Finally, the 3.39 μm and 10.69 μm laser is used for spectral calibration validation, show the sought 0.1% accuracy or better is achieved.A new sub-region multi-point calibration method is used for radiometric calibration to improving accuracy, results show the sought 1% accuracy or better is achieved.
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Jiaqing Liu, Shunli Han, Lei Liu, and Dexin Hu "A calibration method of infrared LVF based spectroradiometer", Proc. SPIE 10461, AOPC 2017: Optical Spectroscopy and Imaging, 104610K (24 October 2017); https://doi.org/10.1117/12.2283302
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KEYWORDS
Calibration
Infrared radiation
Infrared spectroscopy
Linear filtering
Spectral calibration
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