Our patented photoacoustic technology was first developped by the Groupe de Spectroscopie Moléculaire et Atmospherique at the University of Reims Champagne Ardennes
Based on the Helmholtz resonant cell principle, the AEROVIA Photoacoustic cell expands and pushes the boundaries of low concentration detection.
Based on a simple and robust principle, this technology is applicable to all fields of trace gas detection.
Photoacoustic Detection of Methane in Large Concentrations with a Helmholtz Sensor: Simulation and Experimentation
New improvements in methane detection using a Helmholtz resonant photoacoustic laser sensor: A comparison between near-IR diode lasers and mid-IR quantum cascade lasers
Insensitive to particulates in stream
Very low maintenance and cost of ownership
Insensitive to temperature changes
Robust and straightforward technology
Phenomenon based on the absorption of Infra-red radiations by molecules and generation of pressure waves which can be collected by a microphone.
The photoacoutic (PA) platform is based on a the principle of a Helmholtz resonant cell combined with powerful quantum cascade lasers. The PA cell has resonant modes which result in a huge amplication of the sound wave when the optical excitation is at such frequency. (for more information about resonant amplication).
direct measurement method