Surveying system

Details Surveying system Surveying system

1997-03-18

2000-02-08

Hellner, Mark

Optics: measuring and testing

Angle measuring or angular axial alignment

Apex of angle at observing or detecting station

33290, G01B 1126, G01C 500

Patent

active

060233265

ABSTRACT:
A surveying system comprises a surveying machine (11) which is disposed at a reference point (A) and a reflecting mirror (5) which is disposed on the side of a target point (B). In this surveying system, a signal-light projecting device (16) for projecting a beam of signal light (P3) onto the surveying machine (11) is disposed on the side of the target point (B), and a rough-direction detecting device (20) for detecting roughly a direction in which the signal-light projecting device (16) is located by receiving the beam of signal light (P8), and a precise-direction detecting device (21) for detecting precisely the direction in which the signal-light projecting device (16) is located by receiving the beam of signal light (P3) are disposed on the side of the surveying machine (11).

REFERENCES:
patent: 4820041 (1989-04-01), Davidson et al.
patent: 4830489 (1989-05-01), Cain et al.
patent: 5055666 (1991-10-01), Miyahara
patent: 5313409 (1994-05-01), Wiklund et al.

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