Title :
Time-resolved ammonia recording in freeway tunnel with mobile photoacoustic system
Author :
Marinov, D. ; Sigrist, M.W.
Author_Institution :
Laser Spectrosc. & Sensing Lab., Eidgenossische Tech. Hochschule Zurich, Switzerland
Abstract :
In this paper, we have implemented a mobile CO2-laser based photoacoustic system for time-resolved recording of ammonia, ethane, CO2 and water vapour emissions in the street tunnel. The main advantage of laser-based instrument is its multicomponent capability and the good temporal resolution.
Keywords :
air pollution measurement; ammonia; carbon compounds; gas lasers; gas sensors; measurement by laser beam; organic compounds; photoacoustic spectroscopy; time resolved spectroscopy; water; CO2; CO2 emissions; CO2-laser; H2O; NH3; ammonia emissions; ethane emissions; freeway street tunnel; mobile photoacoustic system; multicomponent capability; temporal resolution; time-resolved recording; water vapour emissions; Absorption; Density measurement; Gas lasers; Gases; Laser excitation; Monitoring; Pump lasers; Quantum well lasers; Time measurement; Traffic control;
Conference_Titel :
Lasers and Electro-Optics Europe, 2003. CLEO/Europe. 2003 Conference on
Print_ISBN :
0-7803-7734-6
DOI :
10.1109/CLEOE.2003.1313543