Automatic surveying apparatus using a laser beam

Details Automatic surveying apparatus using a laser beam Automatic surveying apparatus using a laser beam

1984-05-21

1987-06-09

Buczinski, Stephen C.

Optics: measuring and testing

Angle measuring or angular axial alignment

With photodetection remote from measured angle

356154, 358107, G01B 1126

Patent

active

046716548

ABSTRACT:
An automatic surveying apparatus for surveying a route in tunneling work, for example, by directing a laser beam from a laser device onto a screen of a moving target to form a laser spot on the screen and detecting the positional coordinates of the laser spot on the screen by means of an image pick-up camera to obtain the positional deviation of the target with high accuracy. The angular deflections of the target can also be measured by use of a target composed of two screens and two image pick-up cameras.

REFERENCES:
patent: 3494699 (1970-02-01), Gloge
patent: 3680958 (1972-08-01), Von Bose
patent: 3706493 (1972-12-01), Redmann
patent: 3799674 (1974-03-01), Guillet et al.
patent: 3865491 (1975-02-01), Hogan

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