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Fiber micro-vibration readout sensor based on MOEMS

  • Rui Li*
  • , Wen Xiao
  • , Dewen Liu
  • , Yu Cui
  • *Corresponding author for this work
  • Beihang University

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

Abstract

To measure the vibration of micro-structure, a scheme of sensor based on MOEMS (Micro-Optic-Electro-Mechanical System) with fiber-optic readout was proposed , and its mathematical model was deduced. Single-fiber readout structure and a micro-structure fixed in the front of the sensor were used. The micro-structure vibrated as the measured object moved, and its vibration caused the change of light intensity. The sensor detected vibration displacement by receiving the light intensity. As a result of single-fiber structure and parameters optimization of micro-structure, compared with other fiber readout structures, this system has the advantages of high sensitivity and miniaturization which is easier to match with fiber system because of single-fiber structure and parameters optimization of micro-structure. The response behaviors of the system to the piezoelectric ceramics excitation were studied through the experiments. And it could detect the vibration displacement of 0.18nm.

Original languageEnglish
Title of host publication27th International Congress on High-Speed Photography and Photonics
DOIs
StatePublished - 2007
Event27th International Congress on High-Speed Photography and Photonics - Xi'an, China
Duration: 17 Sep 200622 Sep 2006

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6279 PART 3
ISSN (Print)0277-786X

Conference

Conference27th International Congress on High-Speed Photography and Photonics
Country/TerritoryChina
CityXi'an
Period17/09/0622/09/06

Keywords

  • Fiber
  • Micro-optic-electro-mechanical system
  • Reflective intensity
  • Vibration sensor

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