| Issue |
J. Phys. IV France
Volume 137, November 2006
|
|
|---|---|---|
| Page(s) | 135 - 140 | |
| DOI | https://doi.org/10.1051/jp4:2006137027 | |
| Published online | 23 December 2006 | |
35th Winter School on Wave and Quantum Acoustics
J. Bodzenta, M. Dzida and T. Pustelny
J. Phys. IV France 137 (2006) 135-140
DOI: 10.1051/jp4:2006137027
Department of Optoelectronics Institute of Physics, Silesian University of Technology, 2 Krzywoustego Str., 44-100 Gliwice, Poland
e-mail: Erwin.Maciak@polsl.pl
(Published online 23 December 2006)
© EDP Sciences 2006
J. Bodzenta, M. Dzida and T. Pustelny
J. Phys. IV France 137 (2006) 135-140
DOI: 10.1051/jp4:2006137027
Hydrogen gas detection by means of a fiber optic interferometer sensor
E. Maciak and Z. OpilskiDepartment of Optoelectronics Institute of Physics, Silesian University of Technology, 2 Krzywoustego Str., 44-100 Gliwice, Poland
e-mail: Erwin.Maciak@polsl.pl
(Published online 23 December 2006)
Abstract
We have developed a simple fiber optic Fabry-Perot
interferometer (FPI) sensor that is used to detection and measure
concentration of hydrogen gas in the air. The operating principle of the
sensor is discussed in this paper, and it was noticed that the wavelength
positions of the FPI reflectance peaks change with the concentration of
hydrogen gas. The sensor has been successfully used to monitor concentration
of H2 in the air below Lower Explosion Limit (LEL). The sensor utilizes
a layered sensing structure. This structure includes gasochromic titanium
dioxide (TiO2) sensing film. The optical H2 gas sensor has a very
short response time and a fast regeneration time at room temperature.
© EDP Sciences 2006