1. Temperature, pressure, and humidity SAW sensor based on coplanar integrated LGS
- Author
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Xiaorui Liang, Lei Zhang, Qiulin Tan, Wenhua Cheng, Dan Hu, Shuang Li, Lin Jing, and Jijun Xiong
- Subjects
Technology ,Engineering (General). Civil engineering (General) ,TA1-2040 - Abstract
Abstract This paper presents a surface acoustic wave (SAW) sensor based on coplanar integrated Langasite (LGS) that is fabricated using wet etching, high-temperature bonding, and ion beam etching (IBE) processes. The miniaturized multiparameter temperature‒pressure-humidity (TPH) sensor used the MXene@MoS2@Go (MMG) composite to widen the humidity detection range and improve the humidity sensitivity, including a fast response time (3.18 s) and recovery time (0.94 s). The TPH sensor was shown to operate steadily between 25–700 °C, 0–700 kPa, and 10–98% RH. Coupling issues among multiple parameters in complex environments were addressed by decoupling the Δf-temperature coupling factor to improve the accuracy. Therefore, this work can be applied to simultaneous measurements of several environmental parameters in challenging conditions.
- Published
- 2023
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