Frequency stability of micromechanical beam oscillator under subharmonic synchronization

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

Abstract

Frequency stability plays a key role in MEMS oscillator's performance. Synchronization phenomenon has been found useful to improve the short term frequency stability. However, to our knowledge, the influence of subharmonic synchronization on frequency stability hasn't been reported yet. In this work, a micromechanical clamped-clamped beam oscillator is implemented with a piezoresistive sensing closed loop circuit and works in its nonlinear regime. A subharmonic synchronization is observed when it is subject to an external perturbation, and the short term frequency stability along with its contributory factors of perturbation intensity and frequency detuning is studied for the first time. The experimental results show that the oscillation frequency stability is found steady in the subharmonic synchronization region and the short term frequency stability can be further slightly improved by using a larger perturbation intensity.

Original languageEnglish
Title of host publicationTRANSDUCERS 2017 - 19th International Conference on Solid-State Sensors, Actuators and Microsystems
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1931-1934
Number of pages4
ISBN (Electronic)9781538627310
DOIs
StatePublished - 26 Jul 2017
Event19th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2017 - Kaohsiung, Taiwan, Province of China
Duration: 18 Jun 201722 Jun 2017

Publication series

NameTRANSDUCERS 2017 - 19th International Conference on Solid-State Sensors, Actuators and Microsystems

Conference

Conference19th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2017
Country/TerritoryTaiwan, Province of China
CityKaohsiung
Period18/06/1722/06/17

Keywords

  • Frequency stability
  • MEMS
  • Oscillator
  • Subharmonic synchronization

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