conference paper
Continuous and simultaneous multigas monitoring using a highly sensitive and selective photoacoustic sensor
2005
2005 Conference on Lasers and Electro-Optics (CLEO)
A multi-gas photoacoustic sensor is reported. Simultaneous measurement of ammonia, carbon dioxide and water vapor is demonstrated at ppm level using semiconductor lasers. In-situ measurements to control the housing conditions of laboratory animals are presented