A comparative study on widely used data processing approaches for infrared non-destructive testing and evaluation of concrete structures

Ravibabu Mulaveesala; Geetika Dua; Anju Rani; Anshul Sharma; Kirandeep Kaur

doi:10.1117/12.2593391

12 April 2021 A comparative study on widely used data processing approaches for infrared non-destructive testing and evaluation of concrete structures

Ravibabu Mulaveesala, Geetika Dua, Anju Rani, Anshul Sharma, Kirandeep Kaur

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Proceedings Volume 11743, Thermosense: Thermal Infrared Applications XLIII; 117430Z (2021) https://doi.org/10.1117/12.2593391
Event: SPIE Defense + Commercial Sensing, 2021, Online Only

Abstract

Infrared non-destructive testing and evaluation is one of the promising inspection methods for characterization of wide verity of materials due to its merits and applicability to test materials irrespective of their electrical, mechanical, acoustical and magnetic properties. Among the various infrared non-destructive evaluation modalities such as pulse based thermography and mono frequency excited modulated lock-in thermography, recently proposed matched filter based non-periodic infrared thermographic approaches gained their importance due to their superior sub-surface defect detection in terms of resolution and sensitivity. The present work demonstrates the merits of frequency modulated thermal wave imaging for identification of concrete in concrete structure. Obtained results shows the matched filter based post-processing schemes exhibits better depth scanning capabilities compared with the conventional frequency domain phase approach to detect corrosion in the concrete structures.

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Ravibabu Mulaveesala, Geetika Dua, Anju Rani, Anshul Sharma, and Kirandeep Kaur "A comparative study on widely used data processing approaches for infrared non-destructive testing and evaluation of concrete structures", Proc. SPIE 11743, Thermosense: Thermal Infrared Applications XLIII, 117430Z (12 April 2021); https://doi.org/10.1117/12.2593391

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