Static Strain Modelling, Calibration, and Measurements for High-Temperature Wireless SAW Resonator Operation
| Autor: | A. Maskay, Robert J. Lad, Syeda Fizzah Jilani, David Leff, Mauricio Pereira da Cunha |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Materials science Acoustics 010401 analytical chemistry 01 natural sciences Finite element method 0104 chemical sciences Power (physics) Resonator visual_art 0103 physical sciences visual_art.visual_art_medium Calibration Ceramic Adhesive Sensitivity (control systems) Strain gauge |
| Zdroj: | 2020 IEEE International Ultrasonics Symposium (IUS). |
| DOI: | 10.1109/ius46767.2020.9251613 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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