We will report here on the design and realization of an optoacoustic sensor for the detection of formaldehyde. The sensor consists of a commercial QCL and a resonant PA cell. Two different cell configurations have been investigated: a "standard" H cell and an innovative T-cell with an optical fiber directly inserted into. Two different type of sound detector have been employed: electret microphones and optical MEMS-based microphone. As possible applications, we will describe the results obtained in the detection of formaldehyde (CH2O), a gas of great interest for industrial processes and environmental monitoring
Trace gas sensing using quantum cascade lasers and a fiber-coupled optoacoustic sensor: application to Formaldehyde / Elia, A.; Spagnolo, Vincenzo Luigi; Di Franco, C.; Lugarà, P. M.; Scamarcio, G.. - In: JOURNAL OF PHYSICS. CONFERENCE SERIES. - ISSN 1742-6588. - 214:1(2010). (Intervento presentato al convegno 15th International Conference on Photoacoustic and Photothermal Phenomena , ICPPP15 tenutosi a Leuven, Belgium nel 19–23 July 2009) [10.1088/1742-6596/214/1/012037].
Trace gas sensing using quantum cascade lasers and a fiber-coupled optoacoustic sensor: application to Formaldehyde
SPAGNOLO, Vincenzo Luigi;
2010-01-01
Abstract
We will report here on the design and realization of an optoacoustic sensor for the detection of formaldehyde. The sensor consists of a commercial QCL and a resonant PA cell. Two different cell configurations have been investigated: a "standard" H cell and an innovative T-cell with an optical fiber directly inserted into. Two different type of sound detector have been employed: electret microphones and optical MEMS-based microphone. As possible applications, we will describe the results obtained in the detection of formaldehyde (CH2O), a gas of great interest for industrial processes and environmental monitoringI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
