Inverse scattering algorithm applied to infrared thermal wave images
- 1 November 1993
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 74 (9) , 5828-5834
- https://doi.org/10.1063/1.354202
Abstract
We present an inverse scattering algorithm that makes possible the inversion of experimental thermal wave images of planar subsurface defects. The method is based on a Green’s function technique. It significantly improves the spatial resolution and removes the blurring which is otherwise characteristic of thermal wave images. The method has been applied to materials ranging from plastics (diffusivity ∼0.001 cm2/s) to aluminum alloys (diffusivity ∼0.5 cm2/s), and for depths ranging up to a few mm.This publication has 1 reference indexed in Scilit:
- Inversion of pulsed thermal-wave images for defect sizing and shape recoveryPublished by SPIE-Intl Soc Optical Eng ,1992