Design of a novel length extension vibratory gyroscope

Gobong Choi, Yook Kong Yong

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

Abstract

In this paper, we introduce a novel design length extension vibratory gyroscope to detect the angular velocity rotation about z-axis. The proposed gyroscope is a new type of a gyroscope which utilizes a length extension mode as a driving mode and a flexure mode as a sensing mode to detect the Coriolis force generated by the rotation of the system. The gyroscope was designed and gyro-characteristics were simulated using COMSOL, finite element method (FEM) software. Quartz and langatate crystals are used for gyroscopes and compared. The driving frequencies and sensing frequencies of each gyroscope are obtained by optimizing the geometries of the each gyroscope using eigenfrequency analyses. Frequency response analyses were performed to simulate the gyro-characteristics of the gyroscopes which subjected to the angular velocity about z-axis. The results show that the length extension gyroscope can be used as a gyro-sensor. Moreover, we find that langatate crystals are more suitable materials for higher precision piezoelectric gyro-sensors than quartz crystal.

Original languageEnglish (US)
Title of host publication2015 Joint Conference of the IEEE International Frequency Control Symposium and the European Frequency and Time Forum, FCS 2015 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages84-89
Number of pages6
ISBN (Electronic)9781479988662
DOIs
StatePublished - Jun 29 2015
Event2015 Joint Conference of the IEEE International Frequency Control Symposium and the European Frequency and Time Forum, FCS 2015 - Denver, United States
Duration: Apr 12 2015Apr 16 2015

Publication series

Name2015 Joint Conference of the IEEE International Frequency Control Symposium and the European Frequency and Time Forum, FCS 2015 - Proceedings

Other

Other2015 Joint Conference of the IEEE International Frequency Control Symposium and the European Frequency and Time Forum, FCS 2015
CountryUnited States
CityDenver
Period4/12/154/16/15

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Signal Processing

Keywords

  • Angular rate sensor
  • Finite element method
  • Langatate
  • Length extension gyroscope
  • Piezoelectric vibratory gyroscope
  • Quartz

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