Title :
Compact sensor for photoacoustic monitoring and photochemical dissociation of NO2
Author :
Lassen, Mikael ; Brusch, Anders ; Balslev-Clausen, David ; Petersen, Jan C.
Author_Institution :
Danish Fundamental Metrol., Lyngby, Denmark
fDate :
June 30 2014-July 4 2014
Abstract :
A compact and easy to use photoacoustic (PA) detector has been developed for the detection of nitrogen dioxide (NO2). The detector is based on an integrating sphere as the PA absorption cell and LEDs as light sources. Combined with low-cost microphone the PA sensors provide a highly sensitive and low-cost solution for NO2 monitoring. The PA sensor can easily be modified to measure many different atmospheric trace gasses simply by changing the wavelength of the light source.
Keywords :
acoustic transducers; acousto-optical devices; dissociation; gas sensors; integrated optics; light emitting diodes; microphones; nitrogen compounds; optical sensors; photochemistry; LED; NO2; PA absorption cell; atmospheric trace gas; compact sensor; light sources; low-cost microphone; photoacoustic detector; photoacoustic monitoring; photochemical dissociation; Acoustic measurements; Acoustics; Monitoring; Optical sensors; Optimized production technology;
Conference_Titel :
Laser Optics, 2014 International Conference
Conference_Location :
Saint Petersburg
Print_ISBN :
978-1-4799-3884-1
DOI :
10.1109/LO.2014.6886393
