Recent Advances in Non-stationary Thermal Non-destructive Characterization

Ghali, Venkata Subbarao and Mulaveesala, Ravibabu (2011) Recent Advances in Non-stationary Thermal Non-destructive Characterization. In: Proceedings of the International Conference on Non Destructive Evaluation for Steel Allied Industries - NDESAI 2011, Dec. 2-3, 2011, SNTI Auditorium Jamshedpur, India.



Thermal wave imaging is one of the widely used non-destructive testing and evaluation (NDT&E) methods for detecting subsurface defects in most of the solids. Presently, three different active thermographic techniques are predominantly in use : Pulsed Thermography(PT), Lock-in Thermography(LT) and Pulsed Phase Thermography(PPT).To overcome some of the limitations of these widely used conventional thermographic techniques (requirement of high peak power and long experimentation time), present work focuses on recently proposed non-stationary thermal exci-tation technique for non destructive testing. This present paper highlights advantages and limitations of the prop-osed method by comparing with the conventional thermo-graphic methods.

Item Type:Conference or Workshop Item (Paper)
Official URL/DOI:
Uncontrolled Keywords:Lock-in Thermography; Pulsed Thermography; Pulsed Phase Thermography
Divisions:Material Science and Technology
ID Code:4618
Deposited By:Sahu A K
Deposited On:17 Jan 2012 16:57
Last Modified:17 Jan 2012 16:57
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