J. Phys. IV France 129 (2005) 137-141
Pd/V2O5 fiber optic hydrogen gas sensor*E. Maciak, Z. Opilski and M. Urbanczyk
Department of Optoelectronics Institute of Physics, Silesian University of Technology, 2 Krzywoustego St., 44-100 Gliwice, Poland
The paper presents an optical-fiber hydrogen sensor. The sensor utilizes a layered sensing structure. This structure is a layered Fabry-Perot interferometer and includes gasochromic vanadium pentoxide (V2O5). A structure is made at the end of multi-mode optical fiber as a sensing element. The sensor permits to detect and to measure the concentration of hydrogen in a gaseous medium. The optical H2 gas sensor has a very short response time and a fast regeneration time at room temperature.
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