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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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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