Method for speed measurement according to the laser-doppler-prin

Details Method for speed measurement according to the laser-doppler-prin Method for speed measurement according to the laser-doppler-prin

1997-10-14

2000-05-16

Buczinski, Stephen C.

Optics: measuring and testing

Velocity or velocity/height measuring

With light detector

356 28, 372 34, 372 33, G01P 336, H01S 304

Patent

active

060644729

ABSTRACT:
A method for speed measurement according to the laser-Doppler-principle with which with the help of a beam splitter the light beam of a laser is converted into two part beams crossing on or in the measured object and with the help of an optical receiver the spectral maximum of the intensity modulation of the reflected light is measured. A Koster prism is used as a beam splitter such that the part beams formed intersect at the desired angle on or in the measured object.

REFERENCES:
patent: 3895872 (1975-07-01), Dandliker et al.
patent: 4284351 (1981-08-01), Alldritt et al.
patent: 5011278 (1991-04-01), Farrell
patent: 5359404 (1994-10-01), Dunne
patent: 5469250 (1995-11-01), Holmes
patent: 5610703 (1997-03-01), Raffel et al.

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