A Wireless Passive SAW Delay Line Temperature and Pressure Sensor for Monitoring Water Distribution System

Tang, Zhaozhao and Wu, Wenyan and Gao, Jinliang (2018) A Wireless Passive SAW Delay Line Temperature and Pressure Sensor for Monitoring Water Distribution System. In: IEEE sensors 2018, 38-31 October 2018, New Delhi. (Submitted)

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Abstract

Wireless passive surface acoustic wave (SAW) sensor has been widely used in many applications. This paper presents a feasibility study on a designed wireless passive SAW delay line temperature and pressure sensor for monitoring water distribution systems. The substrate of the sensor node is a Y-Z orientation cut LiNbO3 crystalline with 0.5 mm thickness. The Interdigital transducer (IDT) was fabricated centrally on the surface of the substrate with an antenna connected. There are three reflectors fabricated on the same surface of the IDT. One reflector is on one side and the other two are on the other side of the IDT. A simulated water pipe platform with testing devices was assembled to test the feasibility of the sensor node working in water pipe environment. The experimental result showed that the designed sensor worked properly but 4/5 amplitude of signals is lost compared to the experimental results in the open-air environment.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: SAW; sensor; temperature; pressure; water distribution
Subjects: H100 General Engineering
Divisions: Faculty of Computing, Engineering and the Built Environment
UoA Collections > REF 2021 UoA12: Engineering
Depositing User: Wenyan Wu
Date Deposited: 10 Oct 2018 15:28
Last Modified: 10 Oct 2018 15:28
URI: http://www.open-access.bcu.ac.uk/id/eprint/6462

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