Optical measurement system

Details Optical measurement system Optical measurement system

1996-02-07

1998-08-11

Buczinski, Stephen C.

Optics: measuring and testing

Angle measuring or angular axial alignment

Relative attitude indication along 3 axes with photodetection

356 401, 356 511, G01C 308, G01B 1126

Patent

active

057934835

ABSTRACT:
An optical measurement system includes: at least one optical beam transmitter; at least one optical beam detector for receiving the optical beam from the transmitter; modulation means for modulating the intensity of the transmitted optical beam; processor means for detecting the fractional and integer phase difference between the intensity modulation of the transmitted beam and the beam received by the receiver; and a calculator device for converting the integer and fractional phase difference into a distance between the transmitter and detector.

REFERENCES:
patent: 4003659 (1977-01-01), Conard et al.
patent: 4171907 (1979-10-01), Hill et al.
patent: 4691446 (1987-09-01), Pitches et al.
patent: 4709580 (1987-12-01), Butts et al.
patent: 4964722 (1990-10-01), Schumacher
patent: 5367373 (1994-11-01), Busch-Vishniac et al.

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