Optics: measuring and testing – Angle measuring or angular axial alignment – With photodetection remote from measured angle
Patent
1991-09-06
1994-03-15
Buczinski, Stephen C.
Optics: measuring and testing
Angle measuring or angular axial alignment
With photodetection remote from measured angle
356 1, G01B 1126, G01C 300
Patent
active
052949702
ABSTRACT:
A spatial positioning system includes fixed referent stations which emit rotating, divergent laser beams and a portable reflector. Each fixed station also includes a detector and a processor. The portable reflector may include retroreflectors or transponders. When the rotation of the laser beam is such that it is in line with a portable reflector, the transmitted laser beam is reflected off the portable reflector and received at the fixed receiver. For any point which is crossed by the fanned laser beams of a fixed station, a horizontal angle can be determined. Once these horizontal angles are known for three fixed stations, the point of intersection of three planes, and thus the three-dimensional position of the point, is determined.
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patent: 4791297 (1988-12-01), Savoca et al.
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patent: 4895440 (1990-01-01), Cain et al.
Beliveau Yvan J.
Dornbusch Andrew W.
Lundberg Eric J.
Pratt Timothy
Buczinski Stephen C.
Spatial Positioning Systems, Inc.
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