J. Phys. IV France
Volume 129, October 2005
Page(s) 137 - 141

J. Phys. IV France 129 (2005) 137-141

DOI: 10.1051/jp4:2005129029

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.

© EDP Sciences 2005