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Proceedings Paper

Non-stationary thermal wave imaging for nondestructive testing and evaluation
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Paper Abstract

Among various widely used Infrared Thermal Non-destructive Testing (IRTNDT) modalities, non-stationary thermal wave imaging (NSTWI) methods have proved to be an indispensable approach for the inspection and evaluation of various materials. Growing concerns of surface and subsurface defect detection capabilities with moderate peak power heat sources than the widely used conventional pulse based thermographic methods and in a reasonably less testing time compared to sinusoidal modulated lock-in thermography, make these NSTWI techniques invaluable for this field. The present work highlights a comparative study on various NSTWI techniques, further experimental results are presented to find their defect detection capabilities by taking signal to noise ratio (SNR) into consideration.

Paper Details

Date Published: 21 May 2014
PDF: 6 pages
Proc. SPIE 9105, Thermosense: Thermal Infrared Applications XXXVI, 91050R (21 May 2014); doi: 10.1117/12.2054270
Show Author Affiliations
Ravibabu Mulaveesala, Indian Institute of Technology, Ropar (India)
Vanita Arora, Indian Institute of Technology, Ropar (India)
Juned A. Siddiqui, PDPM IIITDM Jabalpur (India)
Amarnath Muniyappa, PDPM Indian Institute of Technology, Design & Manufacturing Jabalpur (India)

Published in SPIE Proceedings Vol. 9105:
Thermosense: Thermal Infrared Applications XXXVI
Gregory R. Stockton; Fred P. Colbert; Sheng-Jen (Tony) Hsieh, Editor(s)

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