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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 38, Iss. 13 — May. 1, 1999
  • pp: 2755–2759

Structural monitoring by use of a Brillouin distributed sensor

Michael DeMerchant, Anthony Brown, Xiaoyi Bao, and Theodore Bremner  »View Author Affiliations


Applied Optics, Vol. 38, Issue 13, pp. 2755-2759 (1999)
http://dx.doi.org/10.1364/AO.38.002755


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Abstract

The testing of a fiber-optic distributed-strain sensor attached to a simple structural member is reported. A Brillouin scattering-based sensor system was used to measure both tensile and compressive strains along the length of a cantilever beam subjected to various loads. The sensing fiber was attached to the beam in such a way that some sections experienced uniform strain, whereas others were subjected to a nonuniform strain distribution. A spatial resolution of 0.4 m was used, and a measurement precision of approximately ±50 µε was achieved.

© 1999 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(290.5900) Scattering : Scattering, stimulated Brillouin

History
Original Manuscript: September 29, 1998
Revised Manuscript: January 25, 1999
Published: May 1, 1999

Citation
Michael DeMerchant, Anthony Brown, Xiaoyi Bao, and Theodore Bremner, "Structural monitoring by use of a Brillouin distributed sensor," Appl. Opt. 38, 2755-2759 (1999)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-38-13-2755

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