Eddy-Current Modeling of a Continous Conductivity Profile Resulting From a Diffusion Process
| Type | Article | ||||||||||||
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| Date | 2011-08 | ||||||||||||
| Language | English | ||||||||||||
| Author(s) | Lambert Marc1, Nouguier Frederic 2, Zorgati Riadh3 |
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| Affiliation(s) | 1 : Univ Paris Sud, Dept Rech Elect, Lab Signaux & Syst, SUPELEC,CNRS,UMR 8506, F-91192 Gif Sur Yvette, France 2 : Ctr Brest, Lab Oceanog Spatiale IFREMER, F-29280 Plouzane, France 3 : EDF Rech & Dev OSIRIS, F-92141 Clamart, France |
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| Source | Ieee Transactions On Magnetics (0018-9464) (Ieee-inst Electrical Electronics Engineers Inc), 2011-08 , Vol. 47 , N. 8 , P. 2093-2099 | ||||||||||||
| DOI | 10.1109/TMAG.2011.2128877 | ||||||||||||
| WOS© Times Cited | 3 | ||||||||||||
| Keyword(s) | Coils, eddy current testing, electrical conductivity measurement, inverse problems, probes | ||||||||||||
| Abstract | This paper deals with the modelization of eddy-current measurements over combustion turbine blade coatings affected by depletion of aluminum. First, we model the response of an eddy-current coil over a layered metallic structure with a top over-aluminized coating by extending the analytical Uzal-Rose's model for one hyperbolic tangent conductivity profile to a conductivity profile using two hyperbolic tangents for taking inward and outward depletion of aluminum inside the coating into account. Results obtained with this model are similar to those obtained with a numerical multilayer model but with a reduced computing time. | ||||||||||||
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