Oscillator-based strain gauges employing surface acoustic wave resonators for wireless sensor network

Tomokatsu Konno, Motoaki Hara, Hiroki Kuwano

Research output: Chapter in Book/Report/Conference proceedingConference contribution

9 Citations (Scopus)

Abstract

An oscillator based strain sensor was developed. In this device, a surface acoustic wave (SAW) resonator was used as not only a frequency reference for the oscillator but also a sensor head with high sensitivity. Our sensor was applied to the tensile test based on the industrial standard (JIS Z2241). It was confirmed that the shift of the oscillation frequency was proportional to the strain, and the sensor can detect the strain of 10-6 order. Extraction of this frequency shift was demonstrated using a commercial mixer chip with down-conversion technique. As a result, it was also confirmed that the converted frequency was proportional to the applied strain.

Original languageEnglish
Title of host publication2013 IEEE International Ultrasonics Symposium, IUS 2013
Pages1930-1933
Number of pages4
DOIs
Publication statusPublished - 2013 Dec 1
Event2013 IEEE International Ultrasonics Symposium, IUS 2013 - Prague, Czech Republic
Duration: 2013 Jul 212013 Jul 25

Publication series

NameIEEE International Ultrasonics Symposium, IUS
ISSN (Print)1948-5719
ISSN (Electronic)1948-5727

Other

Other2013 IEEE International Ultrasonics Symposium, IUS 2013
CountryCzech Republic
CityPrague
Period13/7/2113/7/25

Keywords

  • SAW
  • Strain
  • Wireless sensor network

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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