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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 39, Iss. 4 — Feb. 1, 2000
  • pp: 554–560

Application of fiber-optic Bragg grating sensors in monitoring environmental loads of overhead power transmission lines

Leif Bjerkan  »View Author Affiliations


Applied Optics, Vol. 39, Issue 4, pp. 554-560 (2000)
http://dx.doi.org/10.1364/AO.39.000554


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Abstract

We demonstrate the capability of using fiber-optic sensors for measurements on environmental loads on a high-power, overhead transmission line. A trial system with three Bragg gratings, including a temperature reference, was installed on a 160-m span of a 60-kV line. An interrogation system with a tunable distributed Bragg reflector laser source was used. Several measurements of the induced loads on a conductor were recorded in various wind conditions. In particular, aeolian vibrations were frequently observed, and several measurements of this phenomenon were made. The results correlate well with simple theoretical predictions and visual observations.

© 2000 Optical Society of America

OCIS Codes
(010.3920) Atmospheric and oceanic optics : Meteorology
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(120.7280) Instrumentation, measurement, and metrology : Vibration analysis

History
Original Manuscript: June 11, 1999
Revised Manuscript: October 7, 1999
Published: February 1, 2000

Citation
Leif Bjerkan, "Application of fiber-optic Bragg grating sensors in monitoring environmental loads of overhead power transmission lines," Appl. Opt. 39, 554-560 (2000)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-39-4-554


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References

  1. M. J. Tunstall, “Wind-induced vibrations of overhead transmission lines: an overview,” in Proceedings of the International Seminar on Cable Dynamics (Japan Association for Wind Engineering, Tokyo, Japan, 1997), pp. 13–25.
  2. Conference Internationale des Grands Reseaux Electrigues SC22, “Report on aeolian vibration,” Electra 124, 40–77 (1989).
  3. Y. Ogawa, J. Iwasaki, K. Nakamura, “A multiplexing load monitoring system of power transmission lines using fiber Bragg grating,” in Optical Fiber Sensors, Vol. 16 of 1997 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1997), pp. 468–471.
  4. L. Bjerkan, K. Johannessen, X. Guo, “Measurements of frequency responses of three-section distributed Bragg reflector lasers and application to modulation spectroscopy,” Opt. Laser Technol. 30, 417–423 (1998). [CrossRef]
  5. W. Jin, “Investigation of interferometric noise in fiber-optic Bragg grating sensors by use of tunable laser sources,” Appl. Opt. 37, 2517–2525 (1998). [CrossRef]
  6. W. C. Young, Roark’s Formulas for Stress and Strain, 6th ed. (McGraw-Hill, New York, 1989), Chap. 7.
  7. L. M. Milne-Thomson, Theoretical Hydrodynamics, 3rd ed. (Macmillan, London, 1955), Chap. 12.

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