Flow velocity measurements with stimulated Rayleigh-Brillouin-gain spectroscopy.
Using stimulated Rayleigh-Brillouin-gain spectroscopy, we report velocity measurements in an atmospheric-pressure subsonic nitrogen flow with 10% uncertainty. It is shown that the accuracy of the velocity measurements increases with gas pressure, making this spectroscopic technique ideal for measuring velocity and other parameters of high-pressure (>1-atm) atomic or molecular flows.
Herring
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Moosmüller
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Lee
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