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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 53, Iss. 18 — Jun. 20, 2014
  • pp: 3993–4001

Long-period gratings for selective monitoring of loads on a wind turbine blade

L. Glavind, S. Buggy, J. Canning, S. Gao, K. Cook, Y. Luo, G. D. Peng, B. F. Skipper, and M. Kristensen  »View Author Affiliations


Applied Optics, Vol. 53, Issue 18, pp. 3993-4001 (2014)
http://dx.doi.org/10.1364/AO.53.003993


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Abstract

An optical fiber sensor based on long-period gratings (LPG) for selective measurements of flap- and edge-wise bending of a wind turbine blade is presented. Two consecutive LPGs separated by 40 mm interfere to improve resolution and reduce noise in a D-shaped fiber. The mode profile of the device was characterized experimentally to provide a model describing the mode couplings. The sensor was tested on a wind turbine blade.

© 2014 Optical Society of America

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(120.3180) Instrumentation, measurement, and metrology : Interferometry

ToC Category:
Diffraction and Gratings

History
Original Manuscript: April 2, 2014
Manuscript Accepted: May 1, 2014
Published: June 18, 2014

Citation
L. Glavind, S. Buggy, J. Canning, S. Gao, K. Cook, Y. Luo, G. D. Peng, B. F. Skipper, and M. Kristensen, "Long-period gratings for selective monitoring of loads on a wind turbine blade," Appl. Opt. 53, 3993-4001 (2014)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-53-18-3993


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References

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