Doppler velocimeter

Details Doppler velocimeter Doppler velocimeter

1994-08-04

1996-09-03

Hellner, Mark

Optics: measuring and testing

Velocity or velocity/height measuring

With light detector

356356, G01P 336

Patent

active

055528791

ABSTRACT:
A Doppler velocimeter includes an illuminating system for projecting a light beam for measurement onto an object to be measured at a predetermined working distance, and a light-receiving system for receiving light from the object illuminated with the light beam by the illuminating system. Information relating to a speed of the object is detected by a Doppler shift of the light received by the light-receiving system. The Doppler velocimeter further includes a changing device for changing the working distance of the illuminating system.

REFERENCES:
patent: 4632548 (1986-12-01), Gunter, Jr. et al.
patent: 5216478 (1993-06-01), Kodowaki et al.
patent: 5229830 (1993-07-01), Ishida et al.
patent: 5272512 (1993-12-01), Kadowaki et al.
patent: 5327222 (1994-07-01), Takamiya et al.

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