Development of an axial rotating magnetic field multi-coil eddy current sensor for electromagnetic characterization of stratified CFRP materials
Autor: | Abdelhalim Zaoui, I. K. Lefkaier, Ahmed Chaouki Lahrech, Mohammed Naidjate, Mouloud Feliachi, B. Helifa, Bachir Abdelhadi |
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Rok vydání: | 2022 |
Předmět: |
Rotating magnetic field
Materials science Eddy-current sensor Mechanical Engineering Acoustics Condensed Matter Physics Finite element method law.invention Electrical resistance and conductance Electrical resistivity and conductivity Electromagnetic coil law Eddy current General Materials Science Tensor |
Zdroj: | NDT & E International. 126:102589 |
ISSN: | 0963-8695 |
Popis: | This paper presents the development of a multi-coil eddy current (EC) sensor that uses an axial rotating magnetic field for the measurement of electrical resistance to determine the electrical conductivity tensor of stratified carbon fiber reinforced polymer (CFRP) materials. The sensor consists of an identical planar racetrack multi-coil, excited by two-phase sinusoidal current sources that are 90° apart in phase to generate an axial rotating magnetic field and eliminate the need for mechanical rotation. Each sensor's coil's resistance variation is measured using a developed experimental prototype unit and computed using a 3D finite element method (FEM) based on the (A, V–A) formulation. The inverse problem technique that minimizes the difference between the calculated and measured resistances is then used to identify the electrical conductivity tensor components using the particle swarm optimization (PSO) algorithm. The comparison between the computed resistances and the measured ones shows an excellent concordance. |
Databáze: | OpenAIRE |
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