Laser-doppler-anemometer

Details Laser-doppler-anemometer Laser-doppler-anemometer

1985-02-21

1987-06-02

Buczinski, Stephen C.

Optics: measuring and testing

Inspection of flaws or impurities

Bore inspection

250214C, 250238, 250370, 250552, G01P 336, H01L 3114

Patent

active

046698760

ABSTRACT:
A laser-doppler-anemometer for measuring the velocities of moving test specimens employing a laser beam source, deflection optics for at least two partial beams, collecting optics for focussing at least one of the partial beams on the test specimen, and a detector for the scattered light radiated from by the moving test specimen. A compact construction and further possible applications can be obtained when the laser beam source is provided by at least one laser diode whose temperature can be adjusted and kept constant with a temperature control circuit.

REFERENCES:
patent: 3576996 (1971-05-01), Stevens
patent: 3705316 (1972-12-01), Burrous et al.
patent: 3755679 (1973-08-01), Otsuka
patent: 3973852 (1976-08-01), Moore et al.
patent: 4036557 (1977-07-01), Christensen
patent: 4168906 (1979-09-01), Schwiesow
patent: 4506979 (1985-03-01), Rogers
patent: 4511249 (1985-04-01), Frungel
Y. Dubnistchev et al., Optics & Laser Tech., Jun. 1976, p. 129.

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