Leveling arrangement for measuring terrain points

Details Leveling arrangement for measuring terrain points Leveling arrangement for measuring terrain points

1982-02-16

1985-01-01

Stearns, Richard R.

Geometrical instruments

Straight-line light ray type

Level

33264, 33293, 33DIG21, 356 4, G01C 500, G01C 502

Patent

active

044909195

ABSTRACT:
The invention relates to a leveling arrangement for measuring the elevations above terrain points, in which a horizontal measuring beam originating from a distance measuring device searches a first deviating means and, after detection, a second deviating means. Both deviating means are perpendicularly arranged above terrain points marked by a stage each, which, in turn are provided with reflectors. The latter reflect to themselves the measuring beam directed by said deviated means upon said reflectors. Thus the measurement of the altitude of the different terrain points is converted into a distance measurement. The deviating means are triple reflectors, detectors can additionally be provided at the deviating means for detecting the measuring beam. The distance measuring device can be swingingly suspended on a vehicle.

REFERENCES:
patent: 3736058 (1973-05-01), Iadarola
patent: 3790277 (1974-02-01), Hogan
patent: 4029415 (1977-06-01), Johnson
patent: 4030832 (1977-06-01), Rando et al.
patent: 4035084 (1977-07-01), Ramsey

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