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Relative Reluctances in Thick Aluminum Samples

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Review of Progress in Quantitative Nondestructive Evaluation

Abstract

The effects of sample thicknesses, frequencies, and values of lift-off on real and imaginary reluctances for a modified ac magnetic bridge were found for aluminum. Aluminum test samples with thicknesses varying between 0.406 and 6.35 millimeters were scanned at values of lift-off ranging from 0.1 to 0.38 millimeters and at frequencies between 200 and 5000 Hz.

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References

  1. O.H. Zinke and W.F. Schmidt, “Linear ac Magnetic Circuit Theory,” IEEE Transactions on Magnetics, Vol. 29, pp. 2207–2212, 1993.

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  2. O.H. Zinke, U.S. Patent No. 4,901,017, 13 February 1990.

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  3. W.F. Schmidt and O.H. Zinke, “Application of the Quasitatic Model to the Modified Bridge,” to be published in Review of Progress in Quantitative Nondestructive Evaluation, edited by D.O. Thompson and D.E. Cimenti, Vol. 13, 1994.

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  4. W.F. Schmidt and O.H. Zinke, and S. Nasrazadani, “Characterization of a Crack in an Aluminum Bar Using an ac Magnetic Bridge,” accepted for an STP publication by ASTM to appear in 1994.

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  5. O.H. Zinke and W.F. Schmidt, “Modified ac Magnetic Bridge Scanning patterns of Samples Simulating Flaws in Aircraft Seams,” Review of Progress in Quantitative Nondestructive Evaluation, Vol. 12, 2011–2019, Edited by D.O. Thompson and D.E. Cimenti, Plenum Press, New York, 1993.

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Author information

Authors and Affiliations

  1. Department of Mechanical Engineering, University of Arkansas, Fayetteville, AR, 72701, USA

    William F. Schmidt (Professor)

  2. University of Arkansas, Fayetteville, AR, 72701, USA

    Otto H. Zinke (Professor Emeritus of Physics)

Authors
  1. William F. Schmidt
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  2. Otto H. Zinke
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Editor information

Editors and Affiliations

  1. Center for NDE, Ames Laboratory (USDOE) and Department of Aerospace Engineering and Engineering Mechanics, Iowa State University, Ames, Iowa, USA

    Donald O. Thompson

  2. Center for NDE and Department of Aerospace Engineering and Engineering Mechanics, Iowa State University, Ames, Iowa, USA

    Dale E. Chimenti

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© 1995 Plenum Press, New York

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Schmidt, W.F., Zinke, O.H. (1995). Relative Reluctances in Thick Aluminum Samples. In: Thompson, D.O., Chimenti, D.E. (eds) Review of Progress in Quantitative Nondestructive Evaluation. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-1987-4_221

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  • DOI: https://doi.org/10.1007/978-1-4615-1987-4_221

  • Publisher Name: Springer, Boston, MA

  • Print ISBN: 978-1-4613-5819-0

  • Online ISBN: 978-1-4615-1987-4

  • eBook Packages: Springer Book Archive

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