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

Full Article  |  PDF Article
OSA Recommended Articles
Femtosecond laser-inscribed fiber Bragg gratings for strain monitoring in power cables of offshore wind turbines

Jörg Burgmeier, Wolfgang Schippers, Nico Emde, Peter Funken, and Wolfgang Schade
Appl. Opt. 50(13) 1868-1872 (2011)

Simultaneous temperature and bend sensing with long-period fiber gratings

C. C. Ye, S. W. James, and R. P. Tatam
Opt. Lett. 25(14) 1007-1009 (2000)

Effect of macro-bending on resonant wavelength and intensity of long-period gratings in photonic crystal fiber

Zonghu He, Yinian Zhu, and Henry Du
Opt. Express 15(4) 1804-1810 (2007)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (18)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Tables (2)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (3)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription