Prediction of Eddy-Current Probe Impedance Due to Surface Cracks in Ferromagnetic Steels

Harfield, N.; Bowler, John R.

doi:10.1007/978-1-4615-5947-4_31

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Introduction1

Modeling Of the Ferromagnetic Conductors1

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1997

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Cited by 2 publications

(2 citation statements)

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“…To model asymmetrical transducer operation, Bessner and Sablick [2] have determined the electric field inside a half-space conductor for an external current source of an arbitrary shape. Subsequent developments have permitted the modelling of the response of eddy current transducers with various shapes, even in the presence of material discontinuities [3,4].…”

Section: Introductionmentioning

confidence: 99%

Calculation of the induced electromagnetic field created by an arbitrary current distribution located outside a conductive cylinder

Grimberg¹,

Radu²,

Mihalache³

et al. 1997

J. Phys. D: Appl. Phys.

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The present work approaches the problem of determining, by analytical solutions, the electromagnetic field created by an arbitrary distribution of alternating currents placed outside an infinitely long non-magnetic conductive cylinder. Making use of the dyadic Green function method, the electromagnetic field outside the cylinder is expressed as the sum of the field in free space and the field created by the currents induced in the conductive cylinder. The general results we obtained are particularized for the analytical solutions describing the operation of an eddy current transducer with rotating magnetic field for the case of a conductive cylinder non-coaxial with the current source.

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Section: Introductionmentioning

confidence: 99%

Calculation of the induced electromagnetic field created by an arbitrary current distribution located outside a conductive cylinder

Grimberg¹,

Radu²,

Mihalache³

et al. 1997

J. Phys. D: Appl. Phys.

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show abstract

“…The theory of circular eddy current probe interactions with long surface cracks in ferromagnetic steel was developed by Harfield and Bowler [87,88]. In this work, the thin-skin approximation was used and the crack was assumed to be infinite long.…”

Section: Modeling Of the Ferromagnetic Conductorsmentioning

confidence: 99%

The theory of eddy current nondestructive evaluation by using the volume integral equation method

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Prediction of Eddy-Current Probe Impedance Due to Surface Cracks in Ferromagnetic Steels

Cited by 2 publications

References 7 publications

Calculation of the induced electromagnetic field created by an arbitrary current distribution located outside a conductive cylinder

Calculation of the induced electromagnetic field created by an arbitrary current distribution located outside a conductive cylinder

The theory of eddy current nondestructive evaluation by using the volume integral equation method

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