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http://dx.doi.org/10.5139/JKSAS.2016.44.7.545

Distortion Correction of Surface Temperature Measurement Using an Infrared Camera  

Lee, Sungmin (Korea Advanced Institute of Science and Technology)
Kim, Ikhyun (Korea Advanced Institute of Science and Technology)
Lee, Jong Kook (Agency for Defense Development)
Byun, Yunghwan (Konkuk University)
Park, Gisu (Korea Advanced Institute of Science and Technology)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.44, no.7, 2016 , pp. 545-551 More about this Journal
Abstract
Surface temperature of supersonic wind tunnel model was measured using an infrared thermography technique. To measure the temperature quantitatively, various calibration techniques such as blackbody calibration which converts detected camera signal to temperature, distortion correction due to the camera lens and an imbalance of camera pose, and emissivity calibration which considers viewing angles to the model surface, were employed. Throughout the study, for the quantitative as well as qualitative surface temperature measurement, it was verified that the distortion correction must be considered even for the use of two-dimensional model in aerodynamics testing.
Keywords
Infrared Thermography; Emissivity; Supersonic; Calibration;
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