Share Email Print

Proceedings Paper

A FBG-based, temperature-insensitive vibration sensor
Author(s): Wenjun Zhou; Xinyong Dong; Lan Li; Kai Ni; Yongxing Jin
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

In this paper, a novel temperature-insensitive vibration sensor based on a FBG is demonstrated. The FBG is glued in a slanted direction onto the lateral side of a right-angled triangle cantilever beam with an eccentric gear installed on its free end. Vertical vibration applied by the eccentric gear to the cantilever beam leads to a uniform bending along the beam length. As a result, the FBG is chirped and its reflection bandwidth and power change periodically with the variation of the displacement of the free end. The experimental results were compared with the data of vibration measurement of a conventional electrical strain sensor. Furthermore, this sensor is temperature insensitive, owning to the temperatureindependence nature of reflection bandwidth and power of the FBG.

Paper Details

Date Published: 28 October 2009
PDF: 5 pages
Proc. SPIE 7514, Photonics and Optoelectronics Meetings (POEM) 2009: Fiber Optic Communication and Sensors, 751402 (28 October 2009); doi: 10.1117/12.843212
Show Author Affiliations
Wenjun Zhou, China Jiliang Univ. (China)
Xinyong Dong, China Jiliang Univ. (China)
Lan Li, China Jiliang Univ. (China)
Kai Ni, China Jiliang Univ. (China)
Yongxing Jin, China Jiliang Univ. (China)

Published in SPIE Proceedings Vol. 7514:
Photonics and Optoelectronics Meetings (POEM) 2009: Fiber Optic Communication and Sensors
Dieter Stefan Jäger; Hequan Wu; Shuisheng Jian; Desheng Jiang; Deming Liu; Weiwei Dong; Qizhen Sun; Xiaochun Xiao, Editor(s)

© SPIE. Terms of Use
Back to Top