Study on the calibration method for the measurement of low-temperature radiation responsivity of IR camera

Yinghong Dai; Zheng Liu; Hongxia Mao

doi:10.1117/12.977819

15 October 2012 Study on the calibration method for the measurement of low-temperature radiation responsivity of IR camera

Yinghong Dai, Zheng Liu, Hongxia Mao

Author Affiliations +

Proceedings Volume 8417, 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment; 84172F (2012) https://doi.org/10.1117/12.977819
Event: 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT 2012), 2012, Xiamen, China

Abstract

Along with the popular application of focal-plane array IR camera, the field of IR detection and measurement is extended from qualitative to quantitative measurement. In the area of low-temperature radiation quantitative measurement for small targets in low temperature background, one of the most important techniques for IR radiation in low-temperature measurement is IR radiation calibration in the low-temperature. With the need of measuring small weak target with IR camera in our research, we developed a special large aperture low-temperature blackbody which is different from vacuum blackbody for low-temperature calibration, and presented an effective method for low-temperature calibration of IR camera to the lowest temperature at -100ºC. The key technology in the camera’s calibration includes anti-frosting in low-temperature, correcting calibration results. In the calibration, adopts end to end way to make the infrared rays full of the FOV of camera. This method minimizes the influence of CO₂, H₂O in the air, and improves the accuracy of calibration.

Citation Download Citation

Yinghong Dai, Zheng Liu, and Hongxia Mao "Study on the calibration method for the measurement of low-temperature radiation responsivity of IR camera", Proc. SPIE 8417, 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, 84172F (15 October 2012); https://doi.org/10.1117/12.977819

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KEYWORDS

Black bodies

Calibration

Infrared cameras

Cameras

Temperature metrology

Infrared radiation

Argon

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