Passive optical wind profilometer

Details Passive optical wind profilometer Passive optical wind profilometer

1993-05-17

1995-11-21

Buczinski, Stephen C.

Optics: measuring and testing

Velocity or velocity/height measuring

With light detector

356 401, 356358, 356362, G01P 336, G01C 308

Patent

active

054692504

ABSTRACT:
The passive wind profilometer measures wind transverse to a line of sight as a function of range. Schlieren which are natural occurrences in wind act as refracting lenses which move along with the wind. The patches of refracted light are detected by use of a light-intensity-sensitive television. camera and a microprocessor. The range of the schlieren are determined from the scale size of the refracted patches of light. The microprocessor, using a specific algorithm for processing the light intensity data, then statistically compares the positions of the schlieren at different times to determine the wind velocity.

REFERENCES:
patent: 3558898 (1971-01-01), Block et al.
patent: 5153665 (1992-10-01), Weinstein
patent: 5159407 (1992-10-01), Churnside et al.
Remote probing of a distant turbulent layer using various spacial filtering method, Valery v. Zavorotny, Applied Optics, vol. 31, No. 36, Dec. 20, 1992.

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