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Proceedings Article

Optimal Design of MPD based fiber optic strain sensors and comparison of power meter and CCD camera based architectures

[+] Author Affiliations
Onur Toker, Hasan S. Efendioglu, Mehmet E. Esen, Kemal Fidanboylu

Fatih Univ. (Turkey)

Proc. SPIE 7981, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2011, 798140 (April 15, 2011); doi:10.1117/12.880049
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From Conference Volume 7981

  • Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2011
  • Masayoshi Tomizuka
  • San Diego, California, USA | March 06, 2011

abstract

In this work, we consider optimal design of Modal Power Distribution (MPD) based fiber optic sensors and compare power-meter and CCD camera based techniques for strain measurements. To the best of authors' knowledge, majority of the power-meter based MPD sensors use a single photo detector, and there is only one known work where two photodetectors are used with no optimization on photo-detector locations. Optimal measurement location selection problem and comparison of power-meter and CCD camera based sensor measurements were both addressed in this work. Based on our experimental data, more than 100% increased sensitivity is observed in the newly designed optimal strain sensor. It was also shown that there is a fixed nonlinear relationship between CCD based and power-meter based fiber optic sensor measurements. This allows estimation of power-meter measurements utilizing CCD camera images, which in turn simplifies the optimal detector location selection problem.

© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation

Onur Toker ; Hasan S. Efendioglu ; Mehmet E. Esen and Kemal Fidanboylu
"Optimal Design of MPD based fiber optic strain sensors and comparison of power meter and CCD camera based architectures", Proc. SPIE 7981, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2011, 798140 (April 15, 2011); doi:10.1117/12.880049; http://dx.doi.org/10.1117/12.880049


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