Enhance the Sensibility of the Resonance Type Eddy Current Testing

Kouki Maruyama; Illiana Marinova; Yoshifuru Saito

doi:10.4028/www.scientific.net/MSF.792.72

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HomeMaterials Science ForumMaterials Science Forum Vol. 792Enhance the Sensibility of the Resonance Type Eddy...

Enhance the Sensibility of the Resonance Type Eddy Current Testing

Abstract:

Eddy current testing (ECT) is one of the most representative nondestructive testing methods for metallic materials, parts, structures and so on. This paper proposes improvement of sensibility of the impedance sensing type ECT. Sensibility of the ECT is improved by means of three steps. One is an optimum exciting frequency selection. We employ the natural parallel resonant frequency of ECT coil. The second is to increase the sharpness of the resonance curve on impedance versus frequency characteristic by changing the coil connection. Finally, we attach externally capacitor to reduce the resonance frequency into low. This makes it possible to enhance the sensibility of the impedance sensing type ECT operating at the resonant frequency.

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Periodical:

Materials Science Forum (Volume 792)

Pages:

72-77

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.792.72

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Online since:

August 2014

Authors:

Kouki Maruyama, Illiana Marinova, Yoshifuru Saito

Keywords:

ECT, Resonance, Sensibility

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References

[1] I. Marinova, S. Hayano and Y. Saito, Ployphase eddy current testing, Journal of Applied Physics, Vol. 75, No. 10, pp.5904-5906, (1994).

DOI: 10.1063/1.355557

Google Scholar

[2] N. Burais and A. Nicolas, Electromagnetic field analysis in remote field eddy current testing systems, IEEE Transactionson Magnetics, Vol. 25, No. 4, pp.3010-3012, (1989).

DOI: 10.1109/20.34353

Google Scholar

[3] S. McFee and J.P. Webb, Automatic mesh generation for h-p adaption, IEEE Transactions on Magnetics, Vol. 29, No. 2, pp.1894-1897, (1993).

DOI: 10.1109/20.250777

Google Scholar

[4] Y. Midorikawa, S. Hayano and Y. Saito, A resonant phenomenon between adjacent series connected coils and its application to a als, Advanced Computational and Design Techniques in Applied Electromagnetic Systems, Vol. 6, pp.633-639, (1995).

DOI: 10.1016/b978-0-444-82139-3.50164-6

Google Scholar

[5] S. Hayano, Y. Nakajima, H. Saotome and Y. Saito, A new type high frequency transformer, IEEE Transactions on Magnetics, Vol. 27, No. 6, pp.5205-5207, (1991).

DOI: 10.1109/20.278788

Google Scholar