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Proceedings Article

Infrastructure Optics

[+] Author Affiliations
Abdeq M. Abdi, Alan Kost

Optical Sciences Ctr./Univ. of Arizona (USA)

Proc. SPIE 5384, Smart Structures and Materials 2004: Smart Sensor Technology and Measurement Systems, 218 (July 27, 2004); doi:10.1117/12.540139
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From Conference Volume 5384

  • Smart Structures and Materials 2004: Smart Sensor Technology and Measurement Systems
  • Eric Udd; Daniele Inaudi
  • San Diego, CA | March 14, 2004

abstract

An overall strategy in infrastructure health monitoring systems is given through the concept of Infrastructure Optics. The focus is to design and build optical devices and systems, primarily fiber optic communication technology, for health monitoring of infrastructure. Recent developments in the use of Optical Frequency Domain Reflectometry (OFDR) to demodulate Fiber Bragg Grating Arrays (FBGA) have shown promise in its use in infrastructure health monitoring systems. However, the number of papers on the simulation and characteristics of FBGA using OFDR demodulation for health monitoring purposes is not great. In this paper, a FBGA is simulated using OFDR demodulation technique to extract strain information from a simulated cantilever beam host. The structure is first simulated using a Finite Element Model (FEM) to determine displacement and strain response, and the results are used as inputs to the FBGA. An OFDR program then demodulates the array to extract the strain response of the cantilever beam. The characteristics of OFDR and FBGA system is analyzed and compared to actual FEM results.

© (2004) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Abdeq M. Abdi and Alan Kost
"Infrastructure Optics", Proc. SPIE 5384, Smart Structures and Materials 2004: Smart Sensor Technology and Measurement Systems, 218 (July 27, 2004); doi:10.1117/12.540139; http://dx.doi.org/10.1117/12.540139


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