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IR Thermal Wave Tomographic Studies of Structural Composites

  • L. D. Favro
  • H. J. Jin
  • Y. X. Wang
  • T. Ahmed
  • X. Wang
  • P. K. Kuo
  • R. L. Thomas
Part of the Advances in Cryogenic Engineering book series (volume 28)

Abstract

Vavilov et al [1] have recently described a technique for making tomographic thermal wave images. Their method involves recording a succession of thermal wave images after a flash-heating pulse, followed by a numerical pixel-by-pixel search of the images for the time at which the reflected thermal waves from subsurface features have their peak amplitudes. Since the peak time is related to the depth of the scatterer, this information enables one to separate the image into time (or depth) slices. The result is a thermal wave tomogram. Since their process involves post-processing and a search through a large number of stored images, it is memory-intensive, and is difficult to accomplish in real time. In the present paper, we report a thermal wave tomographic method which accomplishes the same result, but does so with real-time techniques which avoid the storage of a large number of images, and produces the tomogram without post-processing.

Keywords

Thermal Wave Impact Damage Tomographic Method Subsurface Feature Hole6 Reference 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Reference

  1. 1.
    V. Vavilov, T. Ahmed, H.J. Jin, R.L. Thomas and L.D. Favro, Sov. J. NDT 12 (1990).Google Scholar

Copyright information

© Springer Science+Business Media New York 1992

Authors and Affiliations

  • L. D. Favro
    • 1
  • H. J. Jin
    • 1
  • Y. X. Wang
    • 1
  • T. Ahmed
    • 1
  • X. Wang
    • 1
  • P. K. Kuo
    • 1
  • R. L. Thomas
    • 1
  1. 1.Department of Physics and Institute for Manufacturing ResearchWayne State UniversityDetroitUSA

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