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Proceedings Paper

Strain measurement of steel and concrete structure using novel surface-mounted fiber Bragg grating sensors
Author(s): Xiujuan Yu; Youlong Yu; Yanbiao Liao; Min Zhang; Shurong Lai
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Paper Abstract

In this paper, fiber Bragg grating (FBG) sensors are used to monitoring the strain of steel and concrete structure. A designed novel steel slice is introduced to package the used FBG. A shallow rectangular groove is notched on the steel slice. Coated with a thin layer of epoxy, the FBG is fixed and protected on the groove. In order to eliminate to the temperature vibration effect on the wavelength shift of FBG sensors, a FBG temperature sensor is used for temperature compensation. The conventional electrical resistance strain gauges (ERS) are also used to measure the strain for the comparison with the FBG sensors to validate the effectiveness. The experimental shows that the novel FBG stain sensor designed by us can measure the stain of the steel and concrete structure effectively and the results from FBG strain sensor agree well with the results from the resistance strain gauge. The novel FBG strain sensor is simple, smart and fit to use in civil structure health monitoring.

Paper Details

Date Published: 5 November 2005
PDF: 11 pages
Proc. SPIE 5998, Sensors for Harsh Environments II, 599807 (5 November 2005); doi: 10.1117/12.630214
Show Author Affiliations
Xiujuan Yu, Heilongjiang Univ. (China)
Tsinghua Univ. (China)
Youlong Yu, Heilongjiang Uinv. (China)
Jinan Univ. (China)
Yanbiao Liao, Heilongjiang Univ. (China)
Min Zhang, Tsinghua Univ. (China)
Shurong Lai, Tsinghua Univ. (China)

Published in SPIE Proceedings Vol. 5998:
Sensors for Harsh Environments II
Anbo Wang, Editor(s)

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