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

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

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 LiNbO 3 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.

Original languageEnglish
Title of host publication2018 IEEE SENSORS, SENSORS 2018 - Conference Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538647073
DOIs
StatePublished - 26 Dec 2018
Event17th IEEE SENSORS Conference, SENSORS 2018 - New Delhi, India
Duration: 28 Oct 201831 Oct 2018

Publication series

NameProceedings of IEEE Sensors
Volume2018-October
ISSN (Print)1930-0395
ISSN (Electronic)2168-9229

Conference

Conference17th IEEE SENSORS Conference, SENSORS 2018
Country/TerritoryIndia
CityNew Delhi
Period28/10/1831/10/18

Keywords

  • SAW
  • pressure
  • sensor
  • temperature
  • water distribution

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