Effect of joule heating on the performance of a piezoresistive micromechanical oscillator

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2 Scopus citations

Abstract

Piezoresistive sensing has been regarded as an effective transduction method in MEMS resonator researches and piezoresistive micromechanical oscillators are therefore of great interests. The induced joule heating in the piezoresistive sensing, however, has a strong effect on the performance of the device. In this work, a micromechanical double ended tuning fork (DETF) based piezoresistive oscillator is studied. The results show the oscillation frequency drifts and the frequency stability decreases when the resonator body temperature increases due to the Joule heating. A linear trend between the minimum Allan deviation and the piezoresistive current is observed from the experiment.

Original languageEnglish
Title of host publication2017 Joint Conference of the European Frequency and Time Forum and IEEE International Frequency Control Symposium, EFTF/IFC 2017 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages253-256
Number of pages4
ISBN (Electronic)9781538629161
DOIs
StatePublished - 27 Oct 2017
Event2017 Joint Conference of the European Frequency and Time Forum and IEEE International Frequency Control Symposium, EFTF/IFC 2017 - Besancon, France
Duration: 9 Jul 201713 Jul 2017

Publication series

Name2017 Joint Conference of the European Frequency and Time Forum and IEEE International Frequency Control Symposium, EFTF/IFC 2017 - Proceedings

Conference

Conference2017 Joint Conference of the European Frequency and Time Forum and IEEE International Frequency Control Symposium, EFTF/IFC 2017
Country/TerritoryFrance
CityBesancon
Period9/07/1713/07/17

Keywords

  • frequency stability
  • Joule heating
  • micromechanical oscillator
  • Piezoresistive

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