Method of adjusting a laser doppler anemometer

Details Method of adjusting a laser doppler anemometer Method of adjusting a laser doppler anemometer

1997-09-10

1999-02-23

Buczinski, Stephen C.

Optics: measuring and testing

Velocity or velocity/height measuring

With light detector

G01P 336

Patent

active

058750240

ABSTRACT:
A method is provided for adjusting a laser doppler anemometer (1-5) having an emitting optic (3) which emits at least two laser beams (7, 8), and a receiving optic (4) for gathering light scattered by dispersed particles. The method comprises the steps of coupling a laser light (17) into an output of the receiving optic to make a focal point (12) of the receiving optic visible on a spaced reference surface (13); adjusting the receiving optic with respect to the surface so that the focal point of the receiving optic lies on the surface; and adjusting and regulating the emitting optic and the receiving optic with respect to each other so that a crossing point (11) of the laser beams coincides with the focal point of the receiving optic on the surface.

REFERENCES:
patent: 4126392 (1978-11-01), House
patent: 4637717 (1987-01-01), Brudnoy
patent: 5090801 (1992-02-01), Johnson

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