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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 47, Iss. 20 — Jul. 10, 2008
  • pp: 3561–3567

Pointwise fiber Bragg grating displacement sensor system for dynamic measurements

Kuo-Chih Chuang and Chien-Ching Ma  »View Author Affiliations


Applied Optics, Vol. 47, Issue 20, pp. 3561-3567 (2008)
http://dx.doi.org/10.1364/AO.47.003561


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Abstract

A method for setting up a fiber Bragg grating (FBG) sensor which can measure the pointwise, out- of-plane or in-plane dynamic displacement is proposed. The proposed FBG sensor is reusable. A multiplexing demodulation system based on a single long-period fiber grating is used in this study. The experimental results of the steady-state motion for a multilayer piezoelectric actuator and the dynamic response of a cantilever beam subjected to impact loadings are presented. These results indicate that the proposed displacement sensor has the ability to measure the out-of-plane dynamic displacement with high sensitivity. Measurements for a piezoceramic plate excited by high frequency show that the proposed displacement sensor also has the ability to provide the in-plane dynamic displacement up to 20 ‚ÄČ kHz .

© 2008 Optical Society of America

OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(120.7280) Instrumentation, measurement, and metrology : Vibration analysis
(060.3735) Fiber optics and optical communications : Fiber Bragg gratings

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: February 5, 2008
Revised Manuscript: May 19, 2008
Manuscript Accepted: June 4, 2008
Published: July 2, 2008

Citation
Kuo-Chih Chuang and Chien-Ching Ma, "Pointwise fiber Bragg grating displacement sensor system for dynamic measurements," Appl. Opt. 47, 3561-3567 (2008)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-47-20-3561

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