Recent advances in thermal wave detection and ranging for non-destructive testing and evaluation of materials

Ravibabu Mulaveesala; V. S. Ghali; Vanita Arora; Juned A. Siddiqui; Amarnath Muniyappa; Masahiro Takei

doi:10.1117/12.2018465

22 May 2013 Recent advances in thermal wave detection and ranging for non-destructive testing and evaluation of materials

Ravibabu Mulaveesala, V. S. Ghali, Vanita Arora, Juned A. Siddiqui, Amarnath Muniyappa, Masahiro Takei

Author Affiliations +

Proceedings Volume 8705, Thermosense: Thermal Infrared Applications XXXV; 870510 (2013) https://doi.org/10.1117/12.2018465
Event: SPIE Defense, Security, and Sensing, 2013, Baltimore, Maryland, United States

Abstract

Thermal Wave Detection and Ranging (TWDAR) for non-destructive testing (TNDT) is a whole field, non-contact and non-destructive inspection method to reveal the surface or subsurface anomalies in the test sample, by recording the temperature distribution over it, for a given incident thermal excitation. Present work proposes recent trends in nonstationary thermal imaging methods which can be performed with less peak power heat sources than the widely used conventional pulsed thermographic methods (PT and PPT) and in very less time compared to sinusoidal modulated Lockin Thermography (LT). Furthermore, results obtained with various non-stationary thermal imaging techniques are compared with the phase based conventional thermographic techniques.

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Ravibabu Mulaveesala, V. S. Ghali, Vanita Arora, Juned A. Siddiqui, Amarnath Muniyappa, and Masahiro Takei "Recent advances in thermal wave detection and ranging for non-destructive testing and evaluation of materials ", Proc. SPIE 8705, Thermosense: Thermal Infrared Applications XXXV, 870510 (22 May 2013); https://doi.org/10.1117/12.2018465

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