Modified AC Magnetic Bridge Scanning Patterns of Samples Simulating Flaws in Aircraft Seams

  • Otto H. Zinke
  • William F. Schmidt

Abstract

Hidden corrosion in the seams or below the skin of an aluminum aircraft results in the loss of material and therefore affects the net conductance as measured at the seam or skin surface. This loss of conductance has been detected through the use of electromagnetic techniques, for example, eddy-current techniques [1].

Keywords

Nickel Rounded Zinke 

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References

  1. 1.
    See for example, S. Mitra, P.S. Urali, J.H. Rose, and J.C. Moulder, Eddy Current Measurement of Corrosion-Related Thinning in Aluminum Lap Splices, this volume.Google Scholar
  2. 2.
    For partial bibliography, see articles listed by W.F. Schmidt and O.H. Zinke, Reluctance Variation as a Result of Lift off for an AC Magnetic Bridge, this volume.Google Scholar
  3. 3.
    O.H. Zinke and W.F. Schmidt, Measurement of Stress with AC Magnetic Bridges, Review of Progress in Quantitative Nondestructive Evaluation Vol. i, 2051, edited by D.O. Thompson and D.E. Chimenti ( Plenum Press, New York, 1989 ).Google Scholar
  4. 4.
    O.H. Zinke and R.W. Derby, Nondestructive Measurements of Plating Thicknesses of Copper and Nickel on Shim Stock and of Nickel on Steel, Review of Progress in Quantitative Nondestructive Evaluation Vol. 11, 1953, edited by D.O. Thompson and D.E. Chimenti, ( Plenum Press, New York, 1992 ).Google Scholar
  5. 5.
    O.H. Zinke and W.F. Schmidt, Theory of AC Magnetic Circuits, to appear IEEE Transactions on Magnetics.Google Scholar

Copyright information

© Plenum Press, New York 1993

Authors and Affiliations

  • Otto H. Zinke
    • 1
  • William F. Schmidt
    • 2
  1. 1.Physics DepartmentUniversity of Arkansas, FayettevilleFayettevilleUSA
  2. 2.Mechanical Engineering DepartmentUniversity of Arkansas, FayettevilleFayettevilleUSA

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