... be treated as rays. Figure 2 shows the idea of a measurement model in ultrasonic tomography. Non-destructive testing Inverse problems Sensors Tomography is an imaging technique, based on measurements taken at its edge, which allows for the analysis of the interior of the examined object...

... of features in time and frequency domains is proposed and verified. Originality/value – ADR in non-destructive testing is utilized in case of digital radiography and ultrasonic testing. Terahertz inspection with pulsed excitation is reported as a source of many useful information about the internal...

... magnetic Reynolds numbers (0.1-1). This facilitates the possibility to detect subsurface defects in conductive materials. © Emerald Group Publishing Limited 2014 Finite element simulation Inverse problems Non-destructive testing Eddy currents Permanent magnets Lorentz force Non...

... Cables Eddy currents Electromagnetism Homogenization Maxwell’s equations Multiscale problems NDT Non-destructive testing Article Type: 2013 Awards for Excellence From: COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic...

...Valdemar Melicher; Peter Sergeant Purpose This paper aims to derive a simple and effective but still a reasonably accurate model for electromagnetic problems with hysteretic magnetic properties and/or induced currents in heterogeneous regions in 2D, meant particularly for non‐destructive testing...

... system for more accurate reconstruction of the crack shape. Design/methodology/approach In this paper, an objective function is formulated using the shape sensitivity information computed from the ECT data. The design of a non‐destructive testing (NDT) sensor is carried out through optimizing...

... bowtie antenna) © Emerald Group Publishing Limited 2011 Non‐destructive testing Composite materials Image processing Signal processing Because of high corrosion resistance, sufficient stiffness and high strength to weight ratio today modern industry make very extensive use...

... reflectometry data. Originality/value This paper fulfils an identified need to determine unknown one‐dimensional profiles and thus plays an important role in electromagnetics, non‐destructive testing, and geophysics. Waves Electromagnetism Non‐destructive testing Geophysics © Emerald Group...

...Stanislaw Gratkowski; Andrzej Brykalski; Ryszard Sikora; Ahmed Cheriet; Mouloud Feliachi; Souri Mohamed Mimoune Purpose The purpose of this paper is to propose modelling 3D eddy current non destructive testing (EC NDT) problems by the finite volume method (FVM). Furthermore, the movement...

... in the fields of environmental protection and non destructive testing of metallic materials. He is currently Pro‐Rector of the University of Perugia at Terni University Campus. Mario Carpentieri received the degree in electronic engineering from University of Messina, Messina, Italy, in 1999, and the PhD...

...Szabolcs Gyimóthy; József Pávó Purpose To propose a novel method for defect reconstruction in electromagnetic non‐destructive testing (NDT). Design/methodology/approach The inversion method is based on an optimized database that contains the measured signals for some predefined defect...

... on the crack surface; d=| r ′− r ₀|, R=| r − r ′| R₀=| r − r ₀|. There are two main steps in the proposed regularisation method: © MCB UP Limited 2002 Eddy currents Non‐destructive testing Evaluation Eddy current testing...

... for the prediction of the output signal which can be applied also to the quantitative measurement of inhomogeneous magnetic fields. © MCB UP Limited 2001 Eddy currents Probes Calibration Magnetic fields Non‐destructive testing Sensors The quantitative utilization of the measured data...

... circuits, Non-destructive testing Abstract The paper presents an efficient modeling technique for the fluxset magnetic field sensor. Using separate numerical solutions for the electric and magnetic fields, an equivalent SPICE circuit is extracted in the postprocessing phase. The main contribution...

... of generalised radial basis function neural networks. The choice of the size of the network and the evaluation of its weights are handled by the orthogonal least squares learning algorithm. The merits of the proposed method are illustrated in the light of two examples concerning non‐destructive testing...