Title :
Catalytic Fiber Bragg Grating Sensor for Hydrogen Leak Detection in Air
Author :
Caucheteur, C. ; Debliquy, M. ; Lahem, D. ; Mégret, P.
Author_Institution :
Fac. Polytech. de Mons, Mons
Abstract :
The explosion risk linked to the use of hydrogen as fuel requires low-cost and efficient sensors. We present here a multipoint in-fiber sensor capable of hydrogen leak detection in air as low as 1% concentration with a response time smaller than a few seconds. Our solution makes use of fiber Bragg gratings (FBGs) covered by a catalytic sensitive layer made of a ceramic doped with noble metal which, in turn, induces a temperature elevation around the FBGs in the presence of hydrogen in air.
Keywords :
Bragg gratings; ceramics; fibre optic sensors; gas sensors; platinum; tungsten compounds; FBG sensor; WO3-Pt; catalytic fiber bragg grating sensor; hydrogen leak detection; multipoint in-fiber sensor; noble metal doped ceramic; Bragg gratings; Ceramics; Delay; Explosions; Fiber gratings; Fuels; Hydrogen; Leak detection; Optical fiber sensors; Testing; Fiber Bragg gratings (FBGs); hydrogen; sensor;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2007.912557