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Proceedings Paper

One kind of fiber Bragg grating displacement sensor using micro-elastic spring
Author(s): Xuefeng Zhao; Gangbing Song; Michael Fernandez; Jinping Ou
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Paper Abstract

A kind of fiber Bragg grating displacement sensor using micro-elastic spring is proposed and studied in this paper. A type of micro-elastic spring was used as a displacement-wavelength conversion component. According to the sensor package design established, one micro FBG displacement sensor with outer diameter of 1.3mm was constructed. Tests were designed and conducted to study the displacement and temperature sensitivity of the sensor. Results show that there are good linear relationships between wavelength and displacement, as well as between wavelength and temperature. The displacement coefficient and temperature coefficient are 10.97pm/mm, and 21.38pm/°C, respectively. To obtain smaller displacement resolution of the sensor, one kind of sensitivity inhenced FBG displacement sensor is proposed and studied, the displacement coefficient is 110pm/mm.

Paper Details

Date Published: 21 October 2009
PDF: 6 pages
Proc. SPIE 7493, Second International Conference on Smart Materials and Nanotechnology in Engineering, 74932X (21 October 2009); doi: 10.1117/12.841293
Show Author Affiliations
Xuefeng Zhao, Dalian Univ. of Technology (China)
Gangbing Song, Univ. of Houston (United States)
Michael Fernandez, Univ. of Houston (United States)
Jinping Ou, Dalian Univ. of Technology (China)
Harbin Institute of Technology (China)


Published in SPIE Proceedings Vol. 7493:
Second International Conference on Smart Materials and Nanotechnology in Engineering
Jinsong Leng; Anand K. Asundi; Wolfgang Ecke, Editor(s)

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