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Proceedings Paper

A hybrid fiber-optic sensor system for condition monitoring of large scale wind turbine blades
Author(s): Dae-gil Kim; Hyunjin Kim; Umesh Sampath; Minho Song
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Paper Abstract

A hybrid fiber-optic sensor system which combines fiber Bragg grating (FBG) sensors and a Michelson interferometer is suggested for condition monitoring uses of large scale wind turbine blades. The system uses single broadband light source to address both sensors, which simplifies the optical setup and enhances the cost-effectiveness of condition monitoring system. An athermal-packaged FBG is used to supply quasi-coherent light for the Michelson interferometer demodulation. For the feasibility test, different profiles of test strain, temperature and vibration have been applied to test structures, and successfully reconstructed with the proposed sensor system.

Paper Details

Date Published: 1 July 2015
PDF: 4 pages
Proc. SPIE 9655, Fifth Asia-Pacific Optical Sensors Conference, 96550N (1 July 2015); doi: 10.1117/12.2184460
Show Author Affiliations
Dae-gil Kim, Chonbuk National Univ. (Korea, Republic of)
Hyunjin Kim, Chonbuk National Univ. (Korea, Republic of)
Umesh Sampath, Chonbuk National Univ. (Korea, Republic of)
Minho Song, Chonbuk National Univ. (Korea, Republic of)


Published in SPIE Proceedings Vol. 9655:
Fifth Asia-Pacific Optical Sensors Conference
Byoungho Lee; Sang-Bae Lee; Yunjiang Rao, Editor(s)

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