Abstract
The development of reliable nondestructive evaluation (NDE) techniques to detect and characterise hidden corrosion in aircraft structures is one of the key problems in maintaining aging military aircraft. Previous work [1–3] has demonstrated that transient eddy-current techniques have significant advantages for the detection of hidden corrosion in multilayer structures compared with conventional eddy-current NDE. The use of a pulsed rather than single-frequency excitation, combined with time-domain measurements, allows the response over a wide range of frequencies to be captured in a single measurement, giving a very significant performance advantage over multi- or swept-frequency methods. Furthermore, by detecting the transient magnetic field using a Hall-effect device rather than detecting the voltage developed in a pickup coil, transient eddy-current NDE can probe more deeply into a multilayer structure than conventional eddy-current NDE, providing greater sensitivity to deeply hidden corrosion.
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References
Harrison, D. J., Eddy-current inspection using Hall sensors and transient excitation, Defence Research Agency Technical Report DRA/SMC/TR941008, DRA Farnborough, UK, (1994)
Harrison, D. J., “The detection of corrosion in layered structures using transient eddy currents” in Nondestructive Testing of Materials, Studies in Applied Electromagnetics and Mechanics, Vol 8, R. Collins, W. D. Dover, J.R. Bowler and K. Miya eds., IOS Press, Amsterdam, 115–124 (1995
J. A. Bieber, S. K. Shaligram, J. H. Rose and J. C. Moulder, “Time-gating of pulsed eddy-current signals for defect characterization and discrimination in aircraft lap-joints”, in Review of Progress in Quantitative Nondestructive Evaluation, Vol 16, D. O. Thompson and D. E. Chimenti eds., Plenum, New York (1996)
J. R. Bowler, “Prediction and analysis of transient eddy-current probe signals” in Review of Progress in Quantitative Nondestructive Evaluation, Vol 9A, D. O. Thompson and D. E. Chimenti eds., 287–293, Plenum, New York (1990)
J. R. Bowler and M. Johnson, IEEE Trans. Magn. 33, 2258–2264, (1997)
S. K. Burke and L. R. F. Rose, Proc. Roy. Soc. Lond. A418, 229–246 (1988)
S. K. Burke, J. Appl. Phys. 67, 465–476 (1990)
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© 1998 Plenum Press, New York
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Burke, S.K., Hugo, G.R., Harrison, D.J. (1998). Transient Eddy-Current NDE for Hidden Corrosion in Multilayer Structures. In: Thompson, D.O., Chimenti, D.E. (eds) Review of Progress in Quantitative Nondestructive Evaluation. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-5339-7_39
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DOI: https://doi.org/10.1007/978-1-4615-5339-7_39
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