Eddy current modelling using the impedance method for surface impedance profiling

In this paper a new technique for determining surface impedance is developed. The technique is derived from an eddy current modelling technique, the impedance method. Considerable extension and development of the impedance method has been undertaken, enabling the prediction of surface impedance meas...

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Bibliographic Details
Published inIEEE transactions on magnetics Vol. 35; no. 3; pp. 1107 - 1110
Main Authors James, D.A., O'Keefe, S.G., Thiel, D.V.
Format Journal Article Conference Proceeding
LanguageEnglish
Published New York, NY IEEE 01.05.1999
Institute of Electrical and Electronics Engineers
Subjects
Applied classical electromagnetism
Conductivity
Earth
Eddy currents
Electromagnetism; electron and ion optics
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Geophysical measurements
Impedance
Impedance measurement
Impedance method
Magnetic field measurement
Magnetic fields
Magnetostatics; magnetic shielding, magnetic induction, boundary-value problems
Mathematical models
Media
Modelling
Nonhomogeneous media
Physics
Profiling
Surface impedance
Surface waves
Surface impedance
Electromagnetism
Magnetic
Magnetic model
Theoretical study
Modelling
Magnetic fields
Impedance
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Summary:In this paper a new technique for determining surface impedance is developed. The technique is derived from an eddy current modelling technique, the impedance method. Considerable extension and development of the impedance method has been undertaken, enabling the prediction of surface impedance measurements for horizontally stratified media and in the vicinity of vertical dislocations. The method is compared with surface impedance theory for horizontally stratified media and with field based results near laterally discontinuous structures.
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ISSN:0018-9464
1941-0069
DOI:10.1109/20.767140