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26 March 1998 Cooling down thermography: principle and results for NDE
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Abstract
Cooling down thermography represents a novel approach to thermal nondestructive testing: the sample is previously heated in an oven in order to obtain a uniform temperature, then it is exposed to a lower ambient temperature. An IR camera monitors the surface temperature decay in order to reveal internal defects. While this approach presents clear disadvantages in terms of versatility, it allows for a faster and deeper penetration in the sample, and it has therefore mainly been used in order to reveal deep defects in insulating materials.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
S. Danesi, A. Salerno, Datong Wu, and Gerhard Busse "Cooling down thermography: principle and results for NDE", Proc. SPIE 3361, Thermosense XX, (26 March 1998); https://doi.org/10.1117/12.304736
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