Static strain modelling, calibration, and measurements for high-temperature wireless saw resonator operation

Syeda Fizzah Jilani, David Leff, Anin Maskay, Robert J. Lad, Mauricio Pereira Da Cunha

Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion CynhadleddTrafodion Cynhadledd (Nid-Cyfnodolyn fathau)

10 Dyfyniadau (Scopus)

Crynodeb

Static strain measurements are relevant for Integrated System Health Monitoring of civil structures, aircrafts, power plants and advanced manufacturing equipment, with implications for safety, process efficiency, and maintenance costs. Wireless strain sensing is highly desirable where the presence of wires poses significant safety concerns, increases maintenance, and thus overall costs, or where they are not feasible, such as in applications which contain moving parts. This paper presents wireless interrogation of surface acoustic wave resonators (SAWRs) fabricated on langasite (LGS) along Euler angles (0°, 138.5°, 32.9°) and aimed at the detection of static strain at high-temperature (HT, above 100°C). Both commercial HT strain gauges and finite element analysis (FEA Abaqus software) were used and compared for SAWR strain calibration from room temperature (RT) to HT. In addition, this work investigated a compromise between high temperature operation vs. sensitivity based on the thickness of ceramic adhesive used. For instance, a reduction in the adhesive thickness from about 150 µm to 135 µm, resulted in a 39% increase in sensitivity at RT. It was also observed that the sensitivity dropped up to 34% from RT to 200°C. Wireless operation, calibration, and increase in sensitivity constitute important advances in the use of LGS SAW devices to monitor static stress in high-temperature harsh environments.

Iaith wreiddiolSaesneg
TeitlIUS 2020 - International Ultrasonics Symposium, Proceedings
CyhoeddwrIEEE Press
ISBN (Electronig)9781728154480
Dynodwyr Gwrthrych Digidol (DOIs)
StatwsCyhoeddwyd - 07 Medi 2020
Digwyddiad2020 IEEE International Ultrasonics Symposium, IUS 2020 - Las Vegas, Unol Daleithiau America
Hyd: 07 Medi 202011 Medi 2020

Cyfres gyhoeddiadau

EnwIEEE International Ultrasonics Symposium, IUS
Cyfrol2020-September
ISSN (Argraffiad)1948-5719
ISSN (Electronig)1948-5727

Cynhadledd

Cynhadledd2020 IEEE International Ultrasonics Symposium, IUS 2020
Gwlad/TiriogaethUnol Daleithiau America
DinasLas Vegas
Cyfnod07 Medi 202011 Medi 2020

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