Skip to Main content Skip to Navigation
Conference papers

Magnetic-Field-Based 3D ETREE Modelling for Multi-Frequency Eddy Current Inspection

Abstract : More and more solid-state magnetic field sensors such as Hall devices are used in eddy current inspection (EC) to acquire magnetic field signals. This work extends the previous analytical model, i.e. 2D Extended Truncated Region Eigenfunction Expansion (ETREE) of EC, and focuses on establishment of 3D ETREE of multi-frequency eddy current inspection (MFEC) on stratified conductors, while taking into account the solid-state magnetic field sensors for field quantification and rectangular coils for field excitation. 3D Finite Element Modelling (FEM) and a hybrid modelling are adopted for verification of the established model. It has been noticed that the 3D ETREE implements the fast and accurate computation of magnetic field signals of MFEC. Following that, the directional characteristics of EC with rectangular excitation coils are investigated, which reveals that the coil width contributes more to the measurement sensitivity than the coil length, and benefits the evaluation of defects and anisotropic conductivity profile of conductors in the follow-up study.
Document type :
Conference papers
Complete list of metadata

Cited literature [10 references]  Display  Hide  Download

https://hal.inria.fr/hal-01564819
Contributor : Hal Ifip <>
Submitted on : Wednesday, July 19, 2017 - 11:23:20 AM
Last modification on : Wednesday, June 10, 2020 - 10:00:04 AM

File

978-3-642-18369-0_25_Chapter.p...
Files produced by the author(s)

Licence


Distributed under a Creative Commons Attribution 4.0 International License

Identifiers

Citation

Yu Zhang, Yong Li. Magnetic-Field-Based 3D ETREE Modelling for Multi-Frequency Eddy Current Inspection. 4th Conference on Computer and Computing Technologies in Agriculture (CCTA), Oct 2010, Nanchang, China. pp.221-230, ⟨10.1007/978-3-642-18369-0_25⟩. ⟨hal-01564819⟩

Share

Metrics

Record views

160

Files downloads

218