Eur. Phys. J. Appl. Phys.
Volume 57, Number 1, January 2012
|Number of page(s)||9|
|Section||Spintronics, Magnetism and Superconductivity|
|Published online||28 November 2011|
Pulsed eddy current non-destructive evaluation based on coupled electromagnetic quantities method
Laboratoire de Génie Électrique (LGE), Université A. Mira, route de Mezaia-Targa-Ouzamour, 6000 Bejaϊa, Algeria
2 IREENA-IUT, CRTT, University Boulevard, BP 406, 44602 Saint-Nazaire Cedex, France
a e-mail: email@example.com
Revised: 2 June 2011
Accepted: 19 September 2011
Published online: 28 November 2011
This paper proposes a semi-analytical model for Pulsed Eddy Current Non-Destructive Evaluation (PEC-NDE) based on the Coupled Electromagnetic Quantities Method (CEQM). The proposed formulation is developed from coupled electric circuit’s approach in which the Crank Nicholson formula is used to derive the transient behavior. The computational model makes use of current excitation allowing the determination of the sensor voltage in the case of an axisymmetric device. The feature of the variation of voltage provides information on the electromagnetic and geometrical properties of the device. So, the second peak of voltage variation (SPVV) and second ratio between the minimum and maximum (RMM2) are used to determine these properties. The proposed model is validated by comparison with Fourier reconstitution obtained from measurements on one hand and with finite element calculations on the other hand. The developed model, associated to an inversion technique, is applied to evaluate the lift-off and the work piece thickness.
© EDP Sciences, 2011
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.