Intrinsic microbend fiber optic sensors

Rui Huang; Shengfang Yuan; Yun Jiang; Baoqi Tao

doi:10.1117/12.444597

11 October 2001 Intrinsic microbend fiber optic sensors

Rui Huang, Shengfang Yuan, Yun Jiang, Baoqi Tao

Proceedings Volume 4604, Fiber Optic Components, Subsystems, and Systems for Telecommunications; (2001) https://doi.org/10.1117/12.444597
Event: International Symposium on Optoelectonics and Microelectronics, 2001, Nanjing, China

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.

Citation Download Citation

Rui Huang, Shengfang Yuan, Yun Jiang, and Baoqi Tao "Intrinsic microbend fiber optic sensors", Proc. SPIE 4604, Fiber Optic Components, Subsystems, and Systems for Telecommunications, (11 October 2001); https://doi.org/10.1117/12.444597

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