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Proceedings Paper

A new fiber optic accelerometer based on fiber Bragg grating
Author(s): Qianliang Liang; Li Yu; Manliang Zhang
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Paper Abstract

High sensitivity is an important index of an accelerometer for seismic monitoring. In this paper, we have designed a new fiber Bragg grating accelerometer and, a theoretical structure is given. The theoretical analysis of the sensor is established, and the results show that the sensitivity of accelerometer device is 2131.5pm/g and resonance frequency is 28.01Hz theoretically. It has a higher precision than traditional accelerometer on magnitude. In the experiment, we have found that the output will react as a cosine signal while the input is a cosine signal. It indicates that the sensor has a good linear relationship between output and response. We demonstrated a strain sensing test of measuring central wavelength shifting by fiber Bragg grating.

Paper Details

Date Published: 17 February 2012
PDF: 8 pages
Proc. SPIE 8332, Photonics and Optoelectronics Meetings (POEM) 2011: Optoelectronic Sensing and Imaging, 83320D (17 February 2012); doi: 10.1117/12.918004
Show Author Affiliations
Qianliang Liang, Huazhong Univ. of Science and Technology (China)
Li Yu, Huazhong Univ. of Science and Technology (China)
Manliang Zhang, Huazhong Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 8332:
Photonics and Optoelectronics Meetings (POEM) 2011: Optoelectronic Sensing and Imaging
Pierre Galarneau; Xu Liu; Pengcheng Li, Editor(s)

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