Optic fiber used as sensor to measure low hydrogen concentrations

M. Aleixandre; P. Corredera; M. L. Hernanz; J. Gutierrez-Monreal; M. J. Fernández; M. C. Horrillo; I. Sayago

doi:10.1117/12.724194

12 June 2007 Optic fiber used as sensor to measure low hydrogen concentrations

M. Aleixandre, P. Corredera, M. L. Hernanz, J. Gutierrez-Monreal, M. J. Fernández, M. C. Horrillo, I. Sayago

Proceedings Volume 6593, Photonic Materials, Devices, and Applications II; 65930Y (2007) https://doi.org/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.

Citation Download Citation

M. Aleixandre, P. Corredera, M. L. Hernanz, J. Gutierrez-Monreal, M. J. Fernández, M. C. Horrillo, and 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); https://doi.org/10.1117/12.724194

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