A Wireless Surface Acoustic Wave-based Tire Pressure and Temperature Sensing Module
- DOI
- 10.2991/icimm-15.2015.83How to use a DOI?
- Keywords
- Lithium niobate (LiNbO3); piezoelectric effect; pressure and temperature sensing; surface acoustic wave component; wireless sensor
- Abstract
Based on the piezoelectric and temperature effects of lithium niobate (LiNbO3) wafer, this paper presents a design of a one-port resonator-type interdigital surface acoustic wave-based sensing device with a wireless transmission function for measuring vehicle tire pressure and temperature. The sensing components of the proposed device comprised a double-layered 3-D structure for measuring pressure and temperature changes simultaneously. The pressure-sensing film on the top layer of the wafer was formed by anisotropic back-etching. This feature enhanced the sensitivity of the device by 33% compared with sensing components featuring planar structures. Furthermore, the sealed bottom layer of the wafer served as a linear temperature sensor. The proposed sensing module was characterized as having a temperature sensing range of 25–95 °C with sensitivity 4.05 kHz/°C and pressure sensing range of 0–5 bar with sensitivity 8.19 kHz/bar.
- Copyright
- © 2015, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Hsing-Cheng Chang AU - San-Sah Hung AU - Yahui Chen AU - Minghan Tsai PY - 2015/07 DA - 2015/07 TI - A Wireless Surface Acoustic Wave-based Tire Pressure and Temperature Sensing Module BT - Proceedings of the 5th International Conference on Information Engineering for Mechanics and Materials PB - Atlantis Press SP - 440 EP - 444 SN - 2352-5401 UR - https://doi.org/10.2991/icimm-15.2015.83 DO - 10.2991/icimm-15.2015.83 ID - Chang2015/07 ER -