3.1 - Tunable laser spectroscopy combined with novel photoacoustic technology for hand-held low-ppb gas analyzers in various applications
- AMA Conferences 2013
2013-05-14 - 2013-05-16
- Proceedings IRS² 2013
- I3 - Spectroscopy and Gas Analysis
- I. Kauppinen, J. Uotila, S. Sinisalo, V. Kittilä, A. Helle, R. Raittila - Gasera Ltd, Turku (Finnland)
- 48 - 52
A versatile and modular technology suitable for several gas measurement applications requiring ppb level sensitivity and high selectivity in a hand-held size is presented. The proposed miniaturized cantilever enhanced photoacoustic detection scheme is combined with different types of NIR or MIR tunable laser sources. Several sources can be combined in the same miniaturized measurement cell and the sources are selected by the application requirements. The use of tunable laser sources provides the possibility to use high-resolution spectroscopy in order to achieve high selectivity in multigas analysis. The novel optical cantilever microphone provides high sensitivity in a miniaturized realization.