Fiber optic sensor for H2 gas detection in the presence of methane based on Pd/WO3 low-coherence interferometric structure

Erwin Maciak

doi:10.1117/12.2282891

1 September 2017 Fiber optic sensor for H₂ gas detection in the presence of methane based on Pd/WO₃ low-coherence interferometric structure

Erwin Maciak

Author Affiliations +

Proceedings Volume 10455, 12th Conference on Integrated Optics: Sensors, Sensing Structures, and Methods; 104550W (2017) https://doi.org/10.1117/12.2282891
Event: Twelfth Integrated Optics – Sensors, Sensing Structures and Methods Conference, 2017, Szczyrk-Gliwice, Poland

Abstract

In this paper I report the preparation and characterisation of an improved hydrogen gas sensor with a better sensitivity, using an amorphous thin WO₃ film covered Pd film. Using a very sensitive optical sensing technique, such as the interference phenomena and a special configuration of the sensing structure were obtained interested results showing the influence of H₂ gas on the optical sensor response. I present the design and results for an interferometric fiber optic hydrogen gas sensor, the Intrinsic Fabry-Perot Interferometer (IFPI), which uses the changing properties of layered interferometric sensing structure Pd/WO₃ to detect hydrogen gas concentrations in the 500 – 2,000 ppm in synthetic dry air, with the working temperature at 80 °C in the presence of CH₄.

Citation Download Citation

Erwin Maciak "Fiber optic sensor for H₂ gas detection in the presence of methane based on Pd/WO₃ low-coherence interferometric structure", Proc. SPIE 10455, 12th Conference on Integrated Optics: Sensors, Sensing Structures, and Methods, 104550W (1 September 2017); https://doi.org/10.1117/12.2282891

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