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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

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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References

  1. M. DeMerchant, A. Brown, X. Bao, and T. W. Bremner, “Automated system for distributed sensing,” in Smart Structures and Materials 1998: Sensory Phenomena and Measurement Instrumentation for Smart Structures and Materials, R. O. Claus and W. B. Spillman, Jr., eds., Proc. SPIE 3330, 315–322 (1998).
  2. X. Bao, D. J. Web, and D. A. Jackson, “22-km distributed temperature sensor using Brillouin gain in an optical fiber,” Opt. Lett. 18, 552–554 (1993).
  3. A. Fellay, L. Thévenaz, M. Facchini, M. Niklès, and P. Robert, “Distributed sensing using Brillouin scattering: towards ultimate resolution,” in Optical Fiber Sensors, Vol. 16 of 1997 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1997), pp. 324–327.
  4. T. Horiguchi, K. Shimizu, T. Kurashima, M. Taleda, and Y. Koyamada, “Development of a distributed sensing technique using Brillouin scattering,” J. Lightwave Technol. 13, 1296–1302 (1995).
  5. D. Garus, T. Gogolla, K. Krebber, and F. Schliep, “Brillouin optical fiber frequency domain analysis for distributed temperature and strain measurements,” J. Lightwave Technol. 15, 654–662 (1997).
  6. J. Gere and S. P. Timoshenko, Mechanics of Materials (PWS-Kent, Boston, Mass., 1990).
  7. A. Brown, M. DeMerchant, X. Bao, and T. W. Bremner, “Advances in distributed sensing using Brillouin scattering,” in Smart Structures and Materials 1998: Sensory Phenomena and Measurement Instrumentation for Smart Structures and Materials, R. O. Claus and W. B. Spillman, Jr., eds., Proc. SPIE 3330, 294–300 (1998).

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