TY - JOUR
T1 - Acoustic emission detection and modal decomposition using a relaxor ferroelectric single crystal linear array
AU - Vien, Benjamin Steven
AU - Gray, Jaslyn
AU - Baddiley, Eliza
AU - Hills, Zane
AU - Lalbakhsh, Pooia
AU - Lee, Shang Xian Matthew
AU - Szydzik, Crispin
AU - Moss, Scott David
AU - Rosalie, Cedric
AU - Rajic, Nik
AU - Mitchell, Arnan
AU - Chiu, Wing Kong
N1 - Publisher Copyright:
© 2024
PY - 2025/3
Y1 - 2025/3
N2 - This paper reports on an acoustic emission (AE) sensor based on relaxor ferroelectric single crystal (RFSC) transduction. The sensor crystal is arranged into a Linear Array for Modal Decomposition and Analysis (LAMDA), with the sensor interrogated by a bespoke high-bandwidth instrument. The efficacy of RFSC LAMDA sensors is showcased through a series of comparative experiments, which include the simultaneous acquisition of pencil lead break (PLB) AEs in a 1.6 mm thick aluminium plate using RFSC LAMDA, a wideband commercial sensor, and laser vibrometry. Subsequent modal decomposition and analysis of the PLB AE signals, as detected by RFSC LAMDA, identified the guided wave modes below 1.4 MHz. Furthermore, it was found that RFSC LAMDA exhibits, on average, 26.6 times greater improvement in sensitivity compared with polyvinylidene fluoride LAMDA variant with near-identical geometry.
AB - This paper reports on an acoustic emission (AE) sensor based on relaxor ferroelectric single crystal (RFSC) transduction. The sensor crystal is arranged into a Linear Array for Modal Decomposition and Analysis (LAMDA), with the sensor interrogated by a bespoke high-bandwidth instrument. The efficacy of RFSC LAMDA sensors is showcased through a series of comparative experiments, which include the simultaneous acquisition of pencil lead break (PLB) AEs in a 1.6 mm thick aluminium plate using RFSC LAMDA, a wideband commercial sensor, and laser vibrometry. Subsequent modal decomposition and analysis of the PLB AE signals, as detected by RFSC LAMDA, identified the guided wave modes below 1.4 MHz. Furthermore, it was found that RFSC LAMDA exhibits, on average, 26.6 times greater improvement in sensitivity compared with polyvinylidene fluoride LAMDA variant with near-identical geometry.
KW - Acoustic emission
KW - Modal decomposition
KW - Pencil lead break
KW - Relaxor ferroelectric single crystal linear array
UR - http://www.scopus.com/inward/record.url?scp=85209893325&partnerID=8YFLogxK
U2 - 10.1016/j.ultras.2024.107515
DO - 10.1016/j.ultras.2024.107515
M3 - Article
C2 - 39581138
AN - SCOPUS:85209893325
SN - 0041-624X
VL - 147
JO - Ultrasonics
JF - Ultrasonics
M1 - 107515
ER -