Study on a fiber Bragg grating accelerometer based on push-pull compliant cylinders

Dakuan Yu, Xueguang Qiao, Xiangyu Wang, Jianlin Zhao

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

Abstract

A compact double fiber Bragg gratings(FBGs) accelerometer based on push-pull compliant cylinders is proposed. The mechanical model is demonstrated. The accelerometer contains four parts, double cylinders, double FBGs, inertial mass, shell. Double cylinders and mass block which can reduce the cross-sensitivity and protect the FBGs from being damaged. The material of the cylinders is two-component vulcanized silicone rubber. The amplitude-frequency and sensitivity of the accelerometer are theoretically analyzed and experimental measured. Experimental results show that the resonant frequency of the accelerometer is 640Hz, the sensor has a broad flat frequency range from 20 to 500Hz, the sensitivity of the accelerometer is about 48.5pm/G with a linearity of 0.999, while the two FBGs is contributed to the sensitivity enhancement, temperature and transverse sensitivity independent. The accelerometer has a wide frequency and high sensitivity, making it a good candidate for the cross-well micro-seismic monitoring.

Original languageEnglish
Title of host publicationEleventh International Conference on Information Optics and Photonics, CIOP 2019
EditorsHannan Wang
PublisherSPIE
ISBN (Electronic)9781510631731
DOIs
StatePublished - 2019
Event11th International Conference on Information Optics and Photonics, CIOP 2019 - Xi'an, China
Duration: 6 Aug 20199 Aug 2019

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume11209
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference11th International Conference on Information Optics and Photonics, CIOP 2019
Country/TerritoryChina
CityXi'an
Period6/08/199/08/19

Keywords

  • accelerometer
  • fiber bragg grating
  • optical fiber

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