Title :
Continuous and simultaneous multigas monitoring using a highly sensitive and selective photoacoustic sensor
Author :
Schilt, Stéphane ; Besson, Jean-Philippe ; Thévenaz, Luc ; Gyger, Marcel
Author_Institution :
Nanophotonics & Metrol. Lab., Swiss Fed. Inst. of Technol., Lausanne, Switzerland
Abstract :
A multi-gas photoacoustic sensor is reported. Simultaneous measurement of ammonia, carbon dioxide and water vapor is demonstrated at ppm level using semiconductor lasers. In-situ measurements to control the housing conditions of laboratory animals are presented.
Keywords :
ammonia; carbon compounds; chemical variables measurement; gas sensors; infrared spectroscopy; measurement by laser beam; photoacoustic spectroscopy; semiconductor lasers; spectrochemical analysis; CO2; NH3; ammonia measurement; carbon dioxide; multigas monitoring; multigas photoacoustic sensor; semiconductor lasers; water vapor; Atmospheric measurements; Distributed feedback devices; Fiber lasers; Gas lasers; Laboratories; Monitoring; Optical buffering; Optical fiber sensors; Optical sensors; Power lasers;
Conference_Titel :
Lasers and Electro-Optics, 2005. (CLEO). Conference on
Print_ISBN :
1-55752-795-4
DOI :
10.1109/CLEO.2005.202076
