Cooling down thermography: principle and results for NDE

S. Danesi; A. Salerno; Datong Wu; Gerhard Busse

doi:10.1117/12.304736

26 March 1998 Cooling down thermography: principle and results for NDE

S. Danesi, A. Salerno, Datong Wu, Gerhard Busse

Proceedings Volume 3361, Thermosense XX; (1998) https://doi.org/10.1117/12.304736
Event: Aerospace/Defense Sensing and Controls, 1998, Orlando, FL, United States

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.

Citation Download Citation

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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