Measurement of gaseous oxygen using diode laser spectroscopy
- 2 November 1987
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 51 (18), 1465-1467
- https://doi.org/10.1063/1.98999
Abstract
A commercial diode laser emitting at ∼761 nm has been used to detect the absorption of individual rotational lines of the A band of atmospheric oxygen. An output signal that is proportional to the O2 partial pressure is extracted using derivative spectroscopy. The method allows measurement of O2 pressure with an uncertainty of ±1.3% of full scale (760 Torr) using a 1-ms time constant.Keywords
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