Study on the Steering Capability of A Meander-line Coil EMAT

Hurrell, S and Charlton, Peter and Mosey, Stephen and Rees-Lloyd, O and Lewis, R (2023) Study on the Steering Capability of A Meander-line Coil EMAT. Insight - Non-Destructive Testing and Condition Monitoring, 65 (2). pp. 95-102. ISSN 1354-2575

2283 Charlton, P. Study on the steering (2023).pdf - Accepted Version
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Electromagnetic acoustic transducers (EMATs) are well-established as a means of ultrasonic wave generation and reception without the use of a mechanical coupling. When comprising a bias magnetic field and a meander-line coil (MLC), these waves propagate at an angle normal to the emission surface. With the appropriate frequency, the propagation pathway of these ultrasonic waves can be steered to a particular angle. This paper presents the methodology used to find the steering limit of an MLC EMAT and the results from simulations and experimental validations on aluminium. The results show that the maximum shear wave amplitude occurred at around 30°, the steering limit was approximately 50° and the simulations were validated by the experimental set-up to a satisfactory degree.

Item Type: Article
Additional Information: ** From Crossref journal articles via Jisc Publications Router ** History: ppub 01-02-2023; issued 01-02-2023.
Uncontrolled Keywords: Materials Chemistry, Metals and Alloys, Mechanical Engineering, Mechanics of Materials
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
T Technology > TN Mining engineering. Metallurgy
Divisions: Institutes and Academies > Wales Institute for Science & Art (WISA) > Academic Discipline: Engineering
SWORD Depositor: JISC Publications Router
Depositing User: JISC Publications Router
Date Deposited: 23 Feb 2023 16:18
Last Modified: 09 Jan 2024 16:43

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