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Probe Footprint Estimation in Eddy-Current Imaging

  • K. H. Hedengren
  • D. E. Ritscher
  • B. R. Groshong
Chapter
Part of the Review of Progress in Quantitative Nondestructive Evaluation book series

Abstract

Eddy-current imaging has been described in detail in previous publications [1,2,3]. As with other imaging systems, the image of an object represents blurring of the structures of the object by the system point spread function (PSF). Differing from other imaging systems, the PSF is very large and causes great spatial blurring of the object. This is because the eddy-current probe is a coil; its active area is much greater than the size of a beam of light, sound, or x-rays.

Keywords

Point Spread Function Image Pair Surface Plot Matched Filter Amplitude Profile 
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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References

  1. 1.
    R. O. McCary, D. W. Oliver, K. H. Silverstein, and J. D. Young, “Eddy Current Imaging,” IEEE Trans. on Magnetics, Vol. Mag-20, No. 5, Sept 1984Google Scholar
  2. 2.
    R. E. Joynson, R. O. McCary, D. W. Oliver, K. H. Silverstein-Hedengren, and L.L. Thumhart “Eddy Current Imaging of Surface Breaking Structures,” IEEE Trans. on Magnetics, Vol. Mag-22, No. 5, Sept 1986Google Scholar
  3. 3.
    K. H. Hedengren, R. O. McCary, J. D. Young, “Use of Imaging Techniques for Eddy Current NDE,” in Review of Progress in Quantitative NDE, edited by D.O. Thompson and D.E. Chimenti ( Plenum Press, New York, 1988 ), Vol. 7A, pp. 357–365Google Scholar

Copyright information

© Springer Science+Business Media New York 1990

Authors and Affiliations

  • K. H. Hedengren
    • 1
  • D. E. Ritscher
    • 1
  • B. R. Groshong
    • 2
  1. 1.G.E. Corporate Research and DevelopmentSchenectadyUSA
  2. 2.North Carolina State UniversityRaleighUSA

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