Prediction and Analysis of Transient Eddy-Current Probe Signals

  • J. R. Bowler
Part of the Review of Progress in Quantitative Nondestructive Evaluation book series


In eddy-current nondestructive evaluation, the electromagnetic field is usually excited by a probe carrying a time-harmonic current and flaw information inferred from the amplitude and phase of the probe signal. In principle, transient excitation of eddy-currents would seem to offer great advantages since the probe response contains the equivalent information of a spectrum of frequencies. This paper explores a number of basic transient solutions due to normal air-cored coils and shows how the induced emf in a coil is related to its coupling coefficient.


Coupling Coefficient Probe Signal Probe Response Solenoidal Coil Time Dependent Signal 
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  1. 1.
    Dodd C.V. and Deeds W.E. J. Appl. Phys. 39 (6), pp 2829–2838, 1968.CrossRefGoogle Scholar
  2. 2.
    Ezzaddine, A., Kong, J.A. and Tsang, L., J. Appl. Phys. 53 (2), pp 813–822, 1982.CrossRefGoogle Scholar
  3. 3.
    Wait, J. R., Propagation of Electromagnetic Pulses in a Homogeneous Conducting Earth, Appl.Sci. Res. Section B, Vol. 8 213–253, 1960.MathSciNetCrossRefMATHGoogle Scholar
  4. 4.
    J. R. Bowler, J. Appl. Phys. 61, pp 833–839, 1987.CrossRefGoogle Scholar
  5. 5.
    Abramowitz, M. and Stegun, Irene; Handbook of Mathematical Functions with Formulas, Graphs, and Mathematical Tables; ( John Wiley & Sons; New York; 1972 ).MATHGoogle Scholar
  6. 6.
    Vernon S. N., IEEE Trans. Magnetics, Vol. 25, 3, pp 2639–2645, 1989.CrossRefGoogle Scholar
  7. 7.
    Bowler J. R., Sabbagh L. D. and Sabbagh H. A, IEEE Trans. Magnetics, Vol. 25, 3, pp 2646–2649, 1989.CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 1990

Authors and Affiliations

  • J. R. Bowler
    • 1
  1. 1.University of SurreyGuildford SurreyEngland

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