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In this work, we perform three-dimensional finite element simulations of a solid electrically conducting plate with a pre-defined material defects. This structure is evaluated by an induction coil. The presence of inhomogeneities in the structure is inspected by non-destructive way with use of eddy current testing method where the perturbed electromagnetic field caused by the defect is detected. This...
The paper presents an advanced procedure for tree-dimensional diagnosis of real cracks from two-dimensional simulated eddy current testing response signals by means of the tabu search stochastic method. A new testing probe driving uniformly distributed eddy currents is employed for the inspection. All three spatial components of the perturbation electromagnetic field are acquired during two-dimensional...
The paper deals with identification of real biomaterial's cracks using electromagnetic non-destructive sensing. Advanced types of the magnetic sensors are used for this purpose. New modular eddy current probe is used for the evaluation. Harmonic excitation is used for the eddy currents induction. The real biomaterial stress corrosion cracks are inspected. Gained results are discussed and presented...
New industrial Non Destructive Testing (NDT) requires the development of new probes because the use of inductance coil sensors are limited for low frequency application such as for detection of deep buried cracks and defect on the edge of the specimen. This paper deals with magnetic sensors (giant magnetoresistance — GMR and fluxgate sensors). The comparison of selected sensors, their properties and...
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