An objective comparison of pulsed, lock-in, and frequency modulated thermal wave imaging

K. Chatterjee, S. Tuli, S.G. Pickering, D.P. Almond

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Abstract

An objective comparison of three different thermal non-destructive evaluation (NDE) techniques - pulsed thermography (PT), lock-in (LI) thermography, and frequency modulated thermal wave imaging (FMTWI), has been carried out on a CFRP sample. The matched energy comparison shows that on the basis of computed SNR, the shallow defects are better detected by PT, while deeper defects are detected equally by all techniques. © 2012 American Institute of Physics.
Original languageEnglish
Pages (from-to)1812-1815
Number of pages4
JournalAIP Conference Proceedings
Volume1430
DOIs
Publication statusPublished - 2012
EventReview of Progress in Quantitative Nondestructive Evaluation - Burlington, VT, USA United States
Duration: 16 Jul 201121 Jul 2011

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