Numerical and experimental study of eddy current probes in NDT of structures with deep flaws

Thollon, F.; Lebrun, Bruno; Burais, Noël; Jayet, Y.

doi:10.1016/0963-8695(94)00010-h

Cited by 33 publications

(20 citation statements)

References 2 publications

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“…The pancake air core coil was used to measure subsurface notch in a 15 mm thick aluminium plate. The coil sensitivity for the subsurface defect was poor due to decreased eddy current density [2]. Hence, coil parameters and excitation frequencies were optimized using 3D numerical simulations.…”

Section: Figurementioning

confidence: 99%

Experimental validation of an eddy current probe for defect detection in thick conducting specimen

Raja¹,

Arunachalam²,

Balasubramanian³

2016

AIP Conference Proceedings

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This paper presents numerical modeling and experimental measurements of eddy current (EC) probe for detecting subsurface defects in 10 mm to 15 mm thick conducting specimen. Measurements are presented for a pancake air core coil to detect subsurface defect in 10 mm thick aluminum slab. EC coil parameters namely inner radius , and outer radius , and operating frequency are optimized for deeper penetration in the conducting plate (35 MS/m) for a given coil height , and lift off distance . Preliminary simulation results are presented for a subsurface defect in 15 mm thick aluminium plate for the optimized EC coil parameters.

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Section: Figurementioning

confidence: 99%

Experimental validation of an eddy current probe for defect detection in thick conducting specimen

Raja¹,

Arunachalam²,

Balasubramanian³

2016

AIP Conference Proceedings

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“…The geometric parameters of the defect studied include length (L dx ), width (L dy ), and height (L dz ) and its original position. The eddy current problem can be described mathematically by the following partial differential equation (PDE) in terms of the magnetic vector potential [8][9][10]:…”

Section: Problem Descriptionmentioning

confidence: 99%

Inspection of defects in conductive multi-layered structures by an eddy current scanning technique: Simulation and experiments

Huang

Zhang

et al. 2006

NDT & E International

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“…The effect of probe parameters such as liftoff, height of coil, radius of coil, and ferrite core geometry were investigated using both experiment and modeling [1,2]. One conclusion that was drawn was that single frequency sine wave excitation was not adequate for many of these problems.…”

Section: Introductionmentioning

confidence: 97%

Numerical and Experimental Study of Eddy Current Crack Detection around Fasteners in Multi-Layer Structures

Knopp¹,

Aldrin²,

Ko³

et al. 2004

AIP Conference Proceedings

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Numerical and experimental study of eddy current probes in NDT of structures with deep flaws

Cited by 33 publications

References 2 publications

Experimental validation of an eddy current probe for defect detection in thick conducting specimen

Experimental validation of an eddy current probe for defect detection in thick conducting specimen

Inspection of defects in conductive multi-layered structures by an eddy current scanning technique: Simulation and experiments

Numerical and Experimental Study of Eddy Current Crack Detection around Fasteners in Multi-Layer Structures

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