Theoretical and experimental study of the resonance frequency of fiber Bragg grating accelerometer based on equal strength cantilever beam

Hong Gao; Xueguang Qiao; Qinpeng Liu; Min Shao

doi:10.1117/12.2549963

20 December 2019 Theoretical and experimental study of the resonance frequency of fiber Bragg grating accelerometer based on equal strength cantilever beam

Hong Gao, Xueguang Qiao, Qinpeng Liu, Min Shao

Author Affiliations +

Proceedings Volume 11209, Eleventh International Conference on Information Optics and Photonics (CIOP 2019); 112094U (2019) https://doi.org/10.1117/12.2549963
Event: Eleventh International Conference on Information Optics and Photonics (CIOP 2019), 2019, Xi'an, China

Abstract

Resonance frequency calculation of accelerometer based on equal strength cantilever beam by Rayleigh method has been proposed and experimentally demonstrated. The accelerometer is with a compact structure in which a short section of fiber stubs containing a fiber Bragg grating (FBG) is attached on the bisector of a equal strength cantilever beam. By comprehensive considering the mass of beam and the mass of the block together, resonance frequency of different accelerometer can be calculated more precisely, compared with the experimental results the maximum relative error is 7.2% over the low frequency range from 20 to 45 Hz.

Citation Download Citation

Hong Gao, Xueguang Qiao, Qinpeng Liu, and Min Shao "Theoretical and experimental study of the resonance frequency of fiber Bragg grating accelerometer based on equal strength cantilever beam", Proc. SPIE 11209, Eleventh International Conference on Information Optics and Photonics (CIOP 2019), 112094U (20 December 2019); https://doi.org/10.1117/12.2549963

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