Calibration method for spectral responsivity of infrared detector based on blackbody at multiple temperature

Y. F. Zhang; Z. F. Shao; Y. Q. Wu

doi:10.1117/12.2191824

7 August 2015 Calibration method for spectral responsivity of infrared detector based on blackbody at multiple temperature

Y. F. Zhang, Z. F. Shao, Y. Q. Wu

Author Affiliations +

Proceedings Volume 9623, 2015 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems; 96230U (2015) https://doi.org/10.1117/12.2191824
Event: International Conference on Optical Instruments and Technology 2015, 2015, Beijing, China

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.

Citation Download Citation

Y. F. Zhang, Z. F. Shao, and Y. Q. Wu "Calibration method for spectral responsivity of infrared detector based on blackbody at multiple temperature", Proc. SPIE 9623, 2015 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems, 96230U (7 August 2015); https://doi.org/10.1117/12.2191824

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