Abstract:
Infrared thermography (IRT) is one of the promising remote and whole field inspection techniques for nondestructive characterization of various solids. This technique relies
on the mapping of surface temperature response to detect the
presence of surface and subsurface anomalies within the material.
Due to its fast and quantitative testing capabilities, the IRT has
gained significant importance in the testing of fiber reinforced
polymers (FRP). A carbon FRP sample with flat bottom holes is
considered for inspection using nonstationary digitized frequency
modulated thermal wave imaging technique. Furthermore, depth
scanning performance using frequency domain-based phase
approach has been compared with recently proposed time domain
phase approach.
