Abstract:
Active InfraRed Thermography (IRT) is one of the promising Non-
Destructive Testing (NDT) and evaluation method for inspection of
various solid materials. Its inherent inspection capabilities such as
remote, wide area monitoring, fast, quantitative and safe deployment
in field test makes active IRT as a vital testing technique in
NDT community. The present work introduces a novel application
based on recently proposed Golay Coded Thermal Wave Imaging
(GCTWI) to examine mild steel and carbon fibre reinforced polymer
(CFRP) test samples having sub-surface defects. Further defect
detection capability of the proposed approach is compared with
the conventional frequency domain phase approach on each
sequence by considering the signal-to-noise ratio as a figure of
merit.
