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A Novel Hinge Structure of Fiber Bragg Grating Acceleration Sensor

  • Yuliang Li
  • Wei WangEmail author
  • Libo Qiao
Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 517)

Abstract

In view of the fact that existing Fiber Bragg Grating (FBG) accelerometers cannot achieve high-precision signal and high vibration frequency measurement at the same time, this paper proposes a novel type of FBG accelerometer based on the hinge structure. A novel mechanical structure of the sensor is designed, the elastic system is composed of a mass block and a flexible hinge, and the strain of the hinge amplified by the mass block is reflected by the fiber grating. Based on the analysis of the working principle of the new sensor, the influence factors of the resonant frequency and sensitivity of the sensor are studied. The mathematical model of the elliptical flexible hinge is used to optimize the design parameters of the sensor structure. The finite element analysis results show that the new structure sensor achieves the desired effect and it has a high resonance frequency (356 Hz) and sensitivity (284 pm/g).

Keywords

Fiber Bragg grating Flexible hinge Acceleration sensor Finite element analysis 

Notes

Acknowledgements

This paper is supported by Natural Science Foundation of China (61271411), Natural Youth Science Foundation of China (61501326, 61401310). It also supported by Tianjin Research Program of Application Foundation and Advanced Technology (15JCZDJC31500), and Tianjin Science Foundation (16JCYBJC16500).

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Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  1. 1.Tianjin Key Laboratory of Wireless Mobile Communications and Power TransmissionTianjin Normal UniversityTianjinChina

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