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Applied Optics

Applied 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)

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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

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

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)

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  1. L. Glavind, I. S. Olesen, B. F. Skipper, and M. Kristensen, “Fibre-optical grating sensors for wind turbine blades: a review,” Opt. Eng. 52, 030901 (2013). [CrossRef]
  2. L. Glavind, S. Buggy, I. Olesen, B. Skipper, J. Canning, K. Cook, and M. Kristensen, “Direct embedding of fiber-optical load sensors into wind turbine blades,” in Advanced Photonics, K. Ewing and M. Ferreira, eds., OSA Technical Digest (online) (Optical Society of America, 2013), paper SM3C.6.
  3. K. Krebber, W. Habel, T. Gutmann, and C. Schram, “Fibre Bragg grating sensors for monitoring of wind turbine blades,” Proc. SPIE 5855, 1036–1039 (2005).
  4. K. O. Hill, Y. Fujii, D. C. Johnson, and B. S. Kawasaki, “Photosensitivity in optical fibre waveguides—Application to reflection filter fabrication,” Appl. Phys. Lett. 32, 647–649 (1978). [CrossRef]
  5. K. Schroeder, W. Ecke, J. Apitz, E. Lembke, and G. Lenschow, “A fibre Bragg grating sensor system monitors operational load in a wind turbine rotor blade,” Meas. Sci. Technol. 17, 1167–1172 (2006). [CrossRef]
  6. D. Zhao, X. Chen, K. Zhou, L. Zhang, I. Bennion, W. N. MacPherson, J. S. Barton, and J. D. C. Jones, “Bend sensors with direction recognition based on long-period gratings written in D-shaped fibre,” Appl. Opt. 43, 5425–5428 (2004). [CrossRef]
  7. N. F. Ramsey, Molecular Beams (Oxford University, 1956).
  8. E. Dianov, S. Vasiliev, A. Kurkov, O. Medvedkov, and V. Protopopov, “In-fibre Mach–Zehnder interferometer based on a pair of long-period gratings,” in 22nd European Conference on Optical Communication (IEEE, 1996), pp. 65–68.
  9. L. Glavind, S. Gao, K. Cook, J. Canning, B. Skipper, Y. Luo, G. Peng, and M. Kristensen, “Enhanced resolution of long-period grating bend sensor,” Proc. SPIE 8924, 892437 (2013).
  10. L. Glavind, J. Canning, S. Gao, K. Cook, G. D. Peng, Y. Luo, B. F. Skipper, and M. Kristensen, “Long-period gratings in special geometry fibres for high resolution and selective sensors,” Opt. Eng. (to be published).
  11. N. Skivesen, A. Tetu, M. Kristensen, J. Kjems, L. H. Frandsen, and P. I. Borel, “Photonic-crystal waveguide biosensor,” Opt. Express 15, 3169–3176 (2007). [CrossRef]
  12. V. Bhatia, D. K. Campbell, D. Sherr, T. G. D’Alberto, N. A. Zabaronick, G. A. T. Eyck, K. A. Murphy, and R. O. Claus, “Temperature-insensitive and strain-insensitive long-period grating sensors for smart structures,” Opt. Eng. 36, 1872–1876 (1997). [CrossRef]
  13. D. Marcuse, F. Ladouceur, and J. Love, “Vector modes of D-shaped fibres,” IEE Proc. Optoelectron. 139, 117–126 (1992).
  14. L. Glavind, S. Buggy, B. F. Skipper, J. Canning, S. Gao, K. Cook, Y. Luo, G. Peng, and M. Kristensen, “A long-period grating sensor system monitoring loads on a wind turbine blade,” submitted to OSA BGPP conference.

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