Photoacoustic Techniques for Trace Gas Sensing Based on Semiconductor Laser Sources

Author: Elia Angela   Lugarà Pietro Mario   Di Franco Cinzia   Spagnolo Vincenzo  

Publisher: MDPI

E-ISSN: 1424-8220|9|12|9616-9628

ISSN: 1424-8220

Source: Sensors, Vol.9, Iss.12, 2009-12, pp. : 9616-9628

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Abstract

The paper provides an overview on the use of photoacoustic sensors based on semiconductor laser sources for the detection of trace gases. We review the results obtained using standard, differential and quartz enhanced photoacoustic techniques.