Probe Footprint Estimation in Eddy-Current Imaging
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.
KeywordsPoint Spread Function Image Pair Surface Plot Matched Filter Amplitude Profile
Unable to display preview. Download preview PDF.
- 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.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.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