High-temperature Vibration Sensor Based on Ba2TiSi2O8Piezoelectric Crystal with Ultra-Stable Sensing Performance up to 650 °c
Publication Name
IEEE Transactions on Industrial Electronics
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.
Open Access Status
This publication is not available as open access
Volume
68
Issue
12
Article Number
9301239
First Page
12850
Last Page
12859
Funding Number
51872165
Funding Sponsor
National Natural Science Foundation of China