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Proceedings Paper

Application of responsivity and noise evaluation method to infrared thermal imaging sensors
Author(s): Dong-Ik Kim; Ghiseok Kim; Geon-Hee Kim; Ki Soo Chang
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Paper Abstract

In this study, the evaluation method for the responsivity and noise characteristics of a commercial infrared thermal imaging camera and a custom-made sensor module was presented. Signal transfer functions (SiTFs) and noise equivalent temperature differences (NETDs) of the two sensor modules were obtained by using a differential mode blackbody that is able to control the temperature difference ΔT between an infrared target and its background. And we verified the suitability of our evaluation method through the comparison between the found NETD and the specification of the camera. In addition, the difference of 0.01 K of the two noise equivalent temperature differences calculated from with and without nonuniformity correction suggests that the nonuniformity correction is essential process for the evaluation of the infrared thermal imaging cameras. Finally, in case of the custom-made sensor module, only temporal NETD was found because of its higher nonuniformity characteristics.

Paper Details

Date Published: 9 June 2014
PDF: 8 pages
Proc. SPIE 9071, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XXV, 90711K (9 June 2014); doi: 10.1117/12.2050227
Show Author Affiliations
Dong-Ik Kim, Korea Basic Science Institute (Korea, Republic of)
Ghiseok Kim, Korea Basic Science Institute (Korea, Republic of)
Geon-Hee Kim, Korea Basic Science Institute (Korea, Republic of)
Ki Soo Chang, Korea Basic Science Institute (Korea, Republic of)


Published in SPIE Proceedings Vol. 9071:
Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XXV
Gerald C. Holst; Keith A. Krapels; Gary H. Ballard; James A. Buford; R. Lee Murrer, Editor(s)

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