PHOTOACOUSTIC DETECTION OF TRACE GASES WITH AN OPTICAL MICROPHONE

Authors
BREGUET J PELLAUX JP GISIN N
Citation
J. Breguet et al., PHOTOACOUSTIC DETECTION OF TRACE GASES WITH AN OPTICAL MICROPHONE, Sensors and actuators. A, Physical, 48(1), 1995, pp. 29-35
Citations number
13
Categorie Soggetti
Engineering, Eletrical & Electronic","Instument & Instrumentation
Journal title
Sensors and actuators. A, Physical → ACNP
ISSN journal
09244247
Volume
48
Issue
1
Year of publication
1995
Pages
29 - 35
Database
ISI
SICI code
0924-4247(1995)48:1<29:PDOTGW>2.0.ZU;2-2
Abstract
An alternative to the electrical microphone for photoacoustic detectio n of trace gases is presented. This new microphone is made of standard monomode optical fibers wound and glued on a thin plate and is one of the arms of a Michelson interferometer. A detection scheme with a Sag nac interferometer has also been used and has given better results. Th ree cells working with different resonance modes and different microph one configurations have been tested.