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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
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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
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document
A Comparative Study of Electromagnetic NDE Methods and Quantum Well Hall Effect Sensor Imaging for Surface-Flaw Detection in Mild Steel Welds
Abstract
Following on from the success and industrial interest in Non-Destructive Evaluation (NDE) applications of Quantum Well Hall Effect (QWHE) sensors, a study was conducted to establish the detection capabilities and general performance of low frequency QWHE imaging for surface-breaking flaw detection and comparing them to Magnetic Particle Inspection (MPI), Eddy Current Testing (ECT) and Alternating Current Field Measurement (ACFM). <br/> <br/>In this study, a probe consisting of a QWHE sensor, illuminating electromagnet and sensor circuitry was controlled using an automated XY scanner with a measurement step size of 250 µm to simulate an integrated array of QWHE sensors of 250 µm pitch. This probe was used to apply a 3 mT 100 Hz frequency magnetic field to map the surface magnetic field and Magnetic Flux Leakage (MFL) response of five bespoke dressed mild steel weld samples made by Sonaspection. <br/> <br/>These samples contained 15 surface-breaking flaws of varying length from 3 to 11 mm; mainly longitudinal toe and centre-line cracks, representative of certain typical industrial requirements of one of our industrial partners. <br/> <br/>The same samples were also subjected to MPI, ECT and ACFM provided by leading industrial companies using their own qualified personnel, equipment and procedures. The outcomes and performance of each NDE technique including QWHE imaging were then compared and evaluated.