Abstract
High-temperature vibration sensors are needed for precise monitoring of dynamic mechanical conditions in aerospace, automotive, and energy-generation-related systems. In this article, a compression-mode vibration sensor was designed and fabricated using a Ba2TiSi2O8 single crystal for structural health monitoring at elevated temperatures (650 °C). The fundamental performance of the sensor was simulated, and the effect of pretightening torques on sensor performance was studied. Sensor performance was characterized as a function of temperature up to 650 °C in a frequency range of 100—600 Hz. The sensitivity of the sensor was found to be on the order of 2.6-2.7 pC/g over the tested frequency and temperature ranges, with variation below 2%. In addition, the sensor was found to maintain ultrastable sensitivity at 650 °C. Thus, it exhibits good sensing capability and high reliability at elevated temperatures. © 2020 IEEE.
| Original language | English |
|---|---|
| Pages (from-to) | 12850-12859 |
| Journal | IEEE Transactions on Industrial Electronics |
| Volume | 68 |
| Issue number | 12 |
| Online published | 21 Dec 2020 |
| DOIs | |
| Publication status | Published - Dec 2021 |
| Externally published | Yes |
Funding
This work was supported in part by the Primary Research and Development Plan of Shandong Province under Grant 2019JZZY010313 and in part by the National Natural Science Foundation of China under Grant 51872165.
Research Keywords
- Ba2TiSi2O8 (BTS) single crystal
- high-temperature sensing
- piezoelectric vibration sensor
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