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Proceedings Paper

Condition monitoring of wind turbine blades with FBG sensors
Author(s): HanChul Kang; Daegil Kim; Minho Song
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Paper Abstract

A fiber grating sensor system for use in condition monitoring of wind turbine blades is constructed. A rotary optical joint was used to connect the fiber grating sensors to the non-rotating signal processing unit with moderate insertion loss. The Bragg wavelengths were interrogated by a spectrometer demodulator which consisted of a volume phase grating and a 512-pixel photo-detector array. Using the constructed sensor system, various strain/temperature measuring experiments have been performed. We applied fiber grating sensors at different locations on the wind turbine blade. Different types of strain, stroke, and temperature variations were applied to the sensors and the results were analyzed according to the sensor locations and the blade's rotary speed.

Paper Details

Date Published: 17 October 2012
PDF: 4 pages
Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 8421BJ (17 October 2012); doi: 10.1117/12.975224
Show Author Affiliations
HanChul Kang, Chonbuk National Univ. (Korea, Republic of)
Daegil Kim, Chonbuk National Univ. (Korea, Republic of)
Minho Song, Chonbuk National Univ. (Korea, Republic of)


Published in SPIE Proceedings Vol. 8421:
OFS2012 22nd International Conference on Optical Fiber Sensors
Yanbiao Liao; Wei Jin; David D. Sampson; Ryozo Yamauchi; Youngjoo Chung; Kentaro Nakamura; Yunjiang Rao, Editor(s)

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