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Proceedings Paper

Calibration method for spectral responsivity of infrared detector based on blackbody at multiple temperature
Author(s): Y. F. Zhang; Z. F. Shao; Y. Q. Wu
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Paper Abstract

The spectral responsivity is one of the most important technical indicators of infrared detector which has an important significance for radiation thermometry and emissivity measurement. Using a blackbody radiation at multiple temperatures, the calibration for spectral responsivity of the infrared detector is proposed. With the Planck's law, the spectral radiance of blackbody at the different temperature is calculated. The detector captures the radiation and generates output values each of those is the function of spectral responsivity, spectral radiance and environmental radiation. Calibration equation is established by means of the calculated radiance and output values. By solving the equations based on principle of least squares, the calibration of spectral responsivity is implemented. From the comparison experiment of measuring the radiance of blackbody at 850K, radiance value measured by the MCT detector has a good consistency with the theoretical data.

Paper Details

Date Published: 7 August 2015
PDF: 7 pages
Proc. SPIE 9623, 2015 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems, 96230U (7 August 2015); doi: 10.1117/12.2191824
Show Author Affiliations
Y. F. Zhang, Bohai Univ. (China)
Z. F. Shao, Bohai Univ. (China)
Y. Q. Wu, Bohai Univ. (China)


Published in SPIE Proceedings Vol. 9623:
2015 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems
Jigui Zhu; Hwa-Yaw Tam; Kexin Xu; Hai Xiao; Sen Han, Editor(s)

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