System for measuring velocity field of fluid flow utilizing a la

Details System for measuring velocity field of fluid flow utilizing a la System for measuring velocity field of fluid flow utilizing a la

1988-06-06

1990-04-24

Buczinski, Stephen C.

Optics: measuring and testing

Velocity or velocity/height measuring

With light detector

356 28, 356337, 356338, 356339, 356432, G01P 336, G01N 2100

Patent

active

049195360

ABSTRACT:
A flow field seeded with small particles is illuminated by collimated, monochromatic laser light sheet 16. Doppler shifted scattering from particle motion is imaged by an optical system 22. An optical frequency-to-intensity converter 24 is located at the image plane such that the transmitted image contains a simultaneous two-dimensional measurement of flow velocity along a direction determined by a laser beam and observer (converter) direction. These images can be observed directly or through a TV-2-D array camera and monitor or processed through a computer system 28.

REFERENCES:
patent: 3825346 (1974-07-01), Rizzo
patent: 4206999 (1980-06-01), Keller
patent: 4375334 (1983-03-01), Gerber
W. T. Mayo et al, App. Opt., vol. 10, No. 9, 9-1971, p. 2119.
B. Hiller et al, Opt. Lett., vol. 8, No. 9, 9-1983, p. 474.

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