A MEMS resonant tilt sensor with high sensitivity maintained in the whole 360° measurement range

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4 Scopus citations

Abstract

In this paper, a MEMS tilt sensor with high sensitivity maintained in the full range is designed and evaluated by open-loop measurement. The sensor contains a hexagon proof mass, micro-lever force amplifiers and three double-ended tuning fork (DETF) resonant strain gauges, converting variations of gravity to resonant frequency shift. The structure of the sensor is analyzed using finite element simulation, and then fabricated through a commercial silicon-on-insulator (SOI)-MEMS foundry process. The measured sensitivity can reach at least 858.6Hz/90° in the full range from 0°to 360°, which verifies the design concept. Based on this preliminary work, the sensitivity of re-designed tilt sensor is expected to reach 1700Hz/90° after an optimization.

Original languageEnglish
Title of host publicationIEEE Sensors, SENSORS 2016 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479982875
DOIs
StatePublished - 5 Jan 2016
Event15th IEEE Sensors Conference, SENSORS 2016 - Orlando, United States
Duration: 30 Oct 20162 Nov 2016

Publication series

NameProceedings of IEEE Sensors
Volume0
ISSN (Print)1930-0395
ISSN (Electronic)2168-9229

Conference

Conference15th IEEE Sensors Conference, SENSORS 2016
Country/TerritoryUnited States
CityOrlando
Period30/10/162/11/16

Keywords

  • DETF
  • MEMS resonant
  • tilt sensor

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