Skip to main content
Log in

A benchmark problem for computation of ΔZ in eddy-current nondestructive evaluation (NDE)

  • Published:
Journal of Nondestructive Evaluation Aims and scope Submit manuscript

Abstract

Experimental results are presented for the change in coil impedance ΔZ when a circular air-cored coil carrying an alternating current of fixed frequency is scanned across a rectangular slot in an aluminium alloy plate. It is proposed that these measurements be used as a benchmark test to verify theoretical calculations of probe response in eddy-current NDE.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. W. Lord and R. Palanisamy, in G. Birnbaum and G. Free (eds.),Eddy Current Characterization of Materials and Structures, ASTM STP722 (American Society for Testing and Materials, Philadelphia, 1981), pp. 5–81.

    Google Scholar 

  2. R. Becker, K. Betzold, K. D. Boness, R. Collins, C. C. Holt, and J. Simkin,Br. J. Nondestruct. Test. 20:286–294, 361–370 (1986).

    Google Scholar 

  3. J. Nondestruct. Eval. 7:1–120 (1988).

  4. C. R. I. Emson (ed.), Test problems and proceedings of a regional workshop on electromagnetics, Report RAL-86-049 (Rutherford Appleton Laboratory, Didcot, U.K., 1986).

    Google Scholar 

  5. L. Turner and C. R. I. Emson, International Electromagnetic Workshops and Test Problems, Proceedings COMPUMAG 87 (Graz, Austria, 1987).

  6. F. W. Grover,Inductance Calculations (Van Nostrand, New York, 1946), pp. 97–98.

    Google Scholar 

  7. American Society for Metals,Metals Handbook, 8th ed. (American Society for Metals, Metals City, Ohio, 1961), Vol. 1, p. 946.

    Google Scholar 

  8. F. E. Terman and J. M. Pettit,Electronic Measurements, 2nd ed. (McGraw-Hill, New York, 1952), pp. 88–89.

    Google Scholar 

  9. C. V. Dodd and W. E. Deeds,J. Appl. Phys. 39:2829–2838 (1968).

    Google Scholar 

  10. S. K. Burke and L. R. F. Rose,Proc. Roy. Soc. Lond., A418:229–246 (1988).

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Burke, S.K. A benchmark problem for computation of ΔZ in eddy-current nondestructive evaluation (NDE). J Nondestruct Eval 7, 35–41 (1988). https://doi.org/10.1007/BF00565775

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00565775

Key words

Navigation