Surveying apparatus detecting relative angular position of proje

Details Surveying apparatus detecting relative angular position of proje Surveying apparatus detecting relative angular position of proje

1990-05-30

1991-10-08

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

356152, G01J 4014

Patent

active

050556665

ABSTRACT:
A stationary base unit including a laser projector, laser range finder, and a universal slewing device is disposed at a base point and is controlled by wireless by operating a data processing unit connected to a target unit which is disposed at one of a plurality of subsidiary survey points distant from the base point. With this surveying apparatus, a survey of land and so on can be made by only one operator on the survey point side.

REFERENCES:
patent: 4343550 (1982-08-01), Buckley et al.
patent: 4494870 (1985-01-01), Hentschel et al.
patent: 4709580 (1987-12-01), Butts, Jr. et al.
patent: 4820041 (1989-04-01), Davidson et al.

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