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3D transient magnetic field mapping for angular slots in aluminium

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A 3D visualisation of transient magnetic field mapping via finite element simulation for the characterisation of complex defects is presented in this paper. In this work, we analyse the Pulsed Eddy Current (PEC) testing application on detection and characterisation of complex geometry defects, for example angular slots, through the mapping of magnetic field distribution. The investigation is implemented via time-stepping 3D Finite Element Analysis (FEA) with features from the mapping extracted for angular slots characterisation. The results indicate the potential static or dynamic features for complex geometry defect characterisation based on the visualisation and mapping of the magnetic field distribution. It is expected that the simulation and magnetic field distribution will help in sensor (array) design and inverse models for complex geometry characterisation.

Keywords: Complex geometry defects; Finite element analysis; Pulsed eddy current; Transient magnetic field mapping

Document Type: Research Article

Affiliations: School of Electrical, Electronic and Computer Engineering, Merz Court, Newcastle University, Newcastle Upon Tyne NE1 7RU, UK., Tel: 44 (0)191 222 5639

Publication date: January 1, 2009

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