Single crystal linear array for modal decomposition analysis
Eliza Baddiley, Scott D. Moss, Ben Vien, Pooia Lalbakhsh, Jaslyn Gray, Nik Rajic, Cedric Rosalie, David J. Munk, Crispin Szydzik, Arnan Mitchell, Wing K. Chiu
Abstract. The characterisation of a 16-element acoustic emission (AE) sensor manufactured using relaxor ferroelectric single crystal (RFSC) is reported. The sensor, a linear array for modal decomposition and analysis (LAMDA) based on piezoelectric transduction, can be used for AE-based damage detection in aerospace, land, and sea applications. The RFSC LAMDA sensor was mounted on a 1.6 mm thick aluminium plate, the response of the sensor to AE excitations produced via pencil lead break (PLB) was examined. PLB break-energy generated by various pencil lead-types were examined experimentally. HB pencil lead 3 mm long, 0.5 mm diameter, has a measured break-energy of 6.6 µJ. Experimentally, RFSC LAMDA was able to detect the 6.6 µJ PLB excitation at a distance of 200 mm across the 1.6 mm aluminium plate. Modal decomposition of modelled and measured signals produced by the RFSC LAMDA in response to A0 and S0 Lamb waves, in a 1.6 mm aluminium plate, are compared and found to be in good agreement.
Keywords
Acousto Ultrasonics, Single Crystal Relaxor Ferroelectric, Modal Decomposition
Published online 3/25/2025, 11 pages
Copyright © 2025 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Eliza Baddiley, Scott D. Moss, Ben Vien, Pooia Lalbakhsh, Jaslyn Gray, Nik Rajic, Cedric Rosalie, David J. Munk, Crispin Szydzik, Arnan Mitchell, Wing K. Chiu, Single crystal linear array for modal decomposition analysis, Materials Research Proceedings, Vol. 50, pp 233-243, 2025
DOI: https://doi.org/10.21741/9781644903513-27
The article was published as article 27 of the book Structural Health Monitoring
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
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