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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Biruu, Dr Firew Abera
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (8/8 displayed)
- 2023A Novel Method for Detecting the Onset and Location of Mechanical Failure by Correlating Engineering Stress with Changes in Magnetic Properties of UNS S32205 Duplex Stainless Steel Using Quantum Well Hall Effect Sensors
- 2019Surface-breaking flaw detection in mild steel welds using quantum well hall effect sensor devicescitations
- 2018Surface-Breaking Flaw Detection in Mild Steel Welds using Quantum Well Hall Effect Sensor Devices
- 2018A Comparative Study of Electromagnetic NDE Methods and Quantum Well Hall Effect Sensor Imaging for Surface-Flaw Detection in Mild Steel Welds
- 2018An Automated Two-Dimensional Magnetic Field Scanner based on Quantum Well Hall Effect Sensor for Non-Destructive Testing
- 2017A real time quantum well hall effect 2D handheld magnetovision system for ferromagnetic and non-ferromagnetic materials non-destructive testing
- 2016Non-destructive detection of defects in materials by a hand-held QWHE magnetic scanner
- 2016A quantum well hall effect sensor based handheld magnetic scanner with programmable electromagnetic coil for non-destructive testing of ferromagnetic and non-ferromagnetic materials
Places of action
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booksection
Non-destructive detection of defects in materials by a hand-held QWHE magnetic scanner
Abstract
© Copyright (2016) by British Institute of Non-Destructive Testing All rights reserved. 3D simulations have been performed for frequency dependent detection of defects in metals by exciting a sample with two electromagnets 50 mm apart to investigate, prior to prototyping, the design of a hand-held magnetic scanner constructed from advanced Quantum Well Hall Effect (QWHE) sensors array. The electromagnet is made of two ferrite cores coils each having 22 turns and carrying a current of 2A. The electromagnet is placed 2mm above a rectangular Iron slab which has a groove on its top surface (2mm x 1mm x 0.5 mm). The frequency range for simulations is chosen in such a way that the skin-depth of the Eddy current produced covers the depth of the groove. Simulated magnetic images clearly show the presence of the groove on the surface through leaked flux. The net magnetic field at the boundaries of the groove increases with increase in frequency. This is due to the fact that the contributions from the Eddy current induced magnetic fields which counteract the magnetic flux leakage (MFL) signals, are reduced at higher frequencies. Further investigation using Al shows that by changing frequency, it is possible to probe both the presence of the groove and its depth.