Reduction of frequency deviations in quartz resonators by electric potentials of plate electrodes

Jianfeng Chen, Yook Kong Yong, Randall Kubena, Deborah Kirby, David Chang

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

2 Scopus citations

Abstract

We present a new method in which a direct current (DC) bias field is used to control the resonant frequency of resonator subjected to body forces. The plate electrodes were used to create the DC bias field. Sensing electrodes were used to measure the body forces that cause the acceleration sensitivity. Finite element models were developed using the theory of small deformations superposed on finite initial deformations in Lagrangian formulation. The model results compared consistently well with the measured values for the force sensitivity coefficient Kf of a circular plate subjected to a pair of diametrical forces; hence validating our model for acceleration sensitivity. For our 1 GHz AT-cut quartz plate resonator with the crystal digonal X-axis perpendicular to plate X-axis, the in-plane acceleration sensitivity is negligible, while the Y-axis acceleration sensitivity is maximum.

Original languageEnglish (US)
Title of host publicationIEEE International Ultrasonics Symposium, IUS
PublisherIEEE Computer Society
Pages252-255
Number of pages4
ISBN (Electronic)9781479970490
DOIs
StatePublished - Oct 20 2014
Event2014 IEEE International Ultrasonics Symposium, IUS 2014 - Chicago, United States
Duration: Sep 3 2014Sep 6 2014

Publication series

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

Other

Other2014 IEEE International Ultrasonics Symposium, IUS 2014
Country/TerritoryUnited States
CityChicago
Period9/3/149/6/14

All Science Journal Classification (ASJC) codes

  • Acoustics and Ultrasonics

Keywords

  • Acceleration sensitivity
  • DC bias field
  • Quartz resonator
  • Resonant frequency

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