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Proceedings Paper

Fiber optic vibration sensor-based smart civil structures
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Paper Abstract

Two kinds of fiber optic vibration sensors for civil structure vibration monitoring are proposed in this paper. The first is based on the detection of spatial mode speckle of a multi-mode optical fiber. A multi-mode optical fiber, diameter is 200/230 micrometers , is used in the present experiment. The second method uses an e-core two-mode optical fiber. The experiment on a composite beam with an embedded statistical fiber optic sensor and surface mounted e-core two-mode fiber optic sensor are demonstrated. The experimental results show that the two types of the fiber optic vibration sensor have higher sensitivity compared to piezoelectric sensors along with other benefits of fiber optic sensor, including lower cost.

Paper Details

Date Published: 11 November 1999
PDF: 6 pages
Proc. SPIE 3897, Advanced Photonic Sensors and Applications, (11 November 1999); doi: 10.1117/12.369347
Show Author Affiliations
Jinsong Leng, Nanyang Technological Univ. (Singapore) and Harbin Institute of Technology (United Kingdom)
Anand Krishna Asundi, Nanyang Technological Univ. (Singapore)

Published in SPIE Proceedings Vol. 3897:
Advanced Photonic Sensors and Applications
Robert A. Lieberman; Anand Krishna Asundi; Hiroshi Asanuma, Editor(s)

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