12 June 2007 Optic fiber used as sensor to measure low hydrogen concentrations
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Proceedings Volume 6593, Photonic Materials, Devices, and Applications II; 65930Y (2007); doi: 10.1117/12.724194
Event: Microtechnologies for the New Millennium, 2007, Maspalomas, Gran Canaria, Spain
Abstract
Optical fiber sensor have shown a great potential to become chemical sensors and have appropriate properties as long term stability, immune to electromagnetic radiation and multiplexing capability. In this work we present a way of measure the hydrogen present with just optic fiber as sensing device. The hydrogen enters the fiber following a diffusion behaviour. This hydrogen generates absorption peaks at several frequencies. We study that frequencies and determine witch ones are appropriate to use for a hydrogen sensor. We use the data collected to do a model of the fiber and simulate and validate that model with the experiments. We conclude the analysis with the advantages of that kind of sensor in a nuclear waste repository.
© (2007) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
M. Aleixandre, P. Corredera, M. L. Hernanz, J. Gutierrez-Monreal, M. J. Fernández, M. C. Horrillo, I. Sayago, "Optic fiber used as sensor to measure low hydrogen concentrations", Proc. SPIE 6593, Photonic Materials, Devices, and Applications II, 65930Y (12 June 2007); doi: 10.1117/12.724194; https://doi.org/10.1117/12.724194
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KEYWORDS
Hydrogen

Signal attenuation

Sensors

Fiber optics sensors

Absorption

Optical fibers

Data modeling

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