Theoretical analysis of an optical accelerometer based on resonant optical tunneling effect

Aoqun Jian, Chongguang Wei, Lifang Guo, Jie Hu, Jun Tang, Jun Liu, Xuming Zhang, Shengbo Sang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

6 Citations (Scopus)

Abstract

� 2017 by the authors; licensee MDPI, Basel, Switzerland. Acceleration is a significant parameter for monitoring the status of a given objects. This paper presents a novel linear acceleration sensor that functions via a unique physical mechanism, the resonant optical tunneling effect (ROTE). The accelerometer consists of a fixed frame, two elastic cantilevers, and a major cylindrical mass comprised of a resonant cavity that is separated by two air tunneling gaps in the middle. The performance of the proposed sensor was analyzed with a simplified mathematical model, and simulated using finite element modeling. The simulation results showed that the optical Q factor and the sensitivity of the accelerometer reach up to 8.857 � 107and 9 pm/g, respectively. The linear measurement range of the device is �130 g. The work bandwidth obtained is located in 10–1500 Hz. The results of this study provide useful guidelines to improve measurement range and resolution of integrated optical acceleration sensors.
Original languageEnglish
Article number389
JournalSensors (Switzerland)
Volume17
Issue number2
DOIs
Publication statusPublished - 17 Feb 2017

Keywords

  • Accelerometer
  • Bandwidth
  • Finite element modeling
  • ROTE
  • Sensitivity

ASJC Scopus subject areas

  • Analytical Chemistry
  • Atomic and Molecular Physics, and Optics
  • Biochemistry
  • Instrumentation
  • Electrical and Electronic Engineering

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