Effect of thickness ratio of double layered thickness-shear resonator on temperature characteristics of resonance frequency

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

Abstract

The factor dictating the temperature characteristic of the double layered thickness-shear resonator was investigated by evaluating the resonators with different thickness ratios. Using Ca3TaGa3Si2O14[CTGS], one of the Langasite-type piezoelectric single crystal, double layered resonators with thickness ratios x = 0.25 and 0.5 were fabricated and the temperature dependence of their resonance frequency were measured at -30 to 80°C. As a result, the temperature characteristics for the resonator with x = 0.25 exhibited different profiles depending on the order of resonance mode, on the other hand, those for the resonator with x = 0.5 exhibited no difference among all of the order. Comparing these results with the wave propagation model in the resonator, it was found that the thickness ratio of two layers at the region effectively contributing to the electric field output was deeply related to the deviation of the temperature characteristics.

Original languageEnglish
Title of host publicationIUS 2020 - International Ultrasonics Symposium, Proceedings
PublisherIEEE Computer Society
ISBN (Electronic)9781728154480
DOIs
Publication statusPublished - 2020 Sep 7
Event2020 IEEE International Ultrasonics Symposium, IUS 2020 - Las Vegas, United States
Duration: 2020 Sep 72020 Sep 11

Publication series

NameIEEE International Ultrasonics Symposium, IUS
Volume2020-September
ISSN (Print)1948-5719
ISSN (Electronic)1948-5727

Conference

Conference2020 IEEE International Ultrasonics Symposium, IUS 2020
CountryUnited States
CityLas Vegas
Period20/9/720/9/11

Keywords

  • Direct bonding
  • Langasite-type piezoelectric single crystal
  • Temperature compensation
  • Thickness-shear mode resonator

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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