Abstract
A technique is demonstrated for measuring velocity at multiple locations in a plane of a gaseous flowfield using with fluorescence detection from iodine molecules, excited by a sheet of tunable single-axial-mode argon-ion laser at 514.5 nm. Measurements were made simultaneously at 10,000 points in iodine-seeded supersonic flowfield with a 100 × 100 element photodiode array camera and were found to agree in well with a numerical solution for the veloctiy field The accuracy with which a component of velocity can be measured is limited, is the current approach, by the iodine linewidth to about ±5 m/sec.
© 1983 Optical Society of America
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