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Proceedings Paper

Intrinsic microbend fiber optic sensors
Author(s): Rui Huang; Shengfang Yuan; Yun Jiang; Baoqi Tao
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Paper Abstract

In this paper, special optical fibers are embedded into #-D braided carbon/epoxy composites to constitute intrinsic microbend fiber optic sensors for internal strain measurement. Samples with embedded optical fibers are braided through four-step method and processed through Resin Transfer Molding (RTM) process. Special measures are taken to prevent damage of the sensors. The microbend optic fiber sensor works well in a three-point bending experiment. The experiments show that the output intensity of the microbend sensor is proportional to the internal strain of the sample while the load increases. Similar results can be achieved as the load decreases. The results show that the embedded microbend fiber optic sensor is fit for internal strain measurement in 3-D braided composites.

Paper Details

Date Published: 11 October 2001
PDF: 6 pages
Proc. SPIE 4604, Fiber Optic Components, Subsystems, and Systems for Telecommunications, (11 October 2001); doi: 10.1117/12.444597
Show Author Affiliations
Rui Huang, Nanjing Univ. of Aeronautics and Astronautics (China)
Shengfang Yuan, Nanjing Univ. of Aeronautics and Astronautics (China)
Yun Jiang, Nanjing Fiberglass Research and Development Institute (China)
Baoqi Tao, Nanjing Univ. of Aeronautics and Astronautics (China)

Published in SPIE Proceedings Vol. 4604:
Fiber Optic Components, Subsystems, and Systems for Telecommunications
Suning Tang; Xiaomin Ren, Editor(s)

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