Audible tilt sensor calibration

Details Audible tilt sensor calibration Audible tilt sensor calibration

1998-06-02

2000-09-19

Bennett, G. Bradley

Geometrical instruments

Straight-line light ray type

Level

33 1PT, G01C 500

Patent

active

061193550

ABSTRACT:
An audible signal generator incorporated into a total station to audibly indicate to the user the rotational orientation of the total station, and a method for using the audible indication to perform the tilt sensor calibration. In one embodiment, the present invention indicates to the user of the total station when the tilt sensor has been calibrated with the total station in a first rotational orientation. This embodiment then audibly indicates to the user when the rotational alidade portion of the total station has been rotated to a second rotational orientation. This embodiment then audibly indicates to the user when the tilt sensor has been calibrated with the total station in the second rotational orientation.

REFERENCES:
patent: 4942668 (1990-07-01), Franklin
patent: 5301434 (1994-04-01), Imaizumi
patent: 5421096 (1995-06-01), Ross
patent: 5488779 (1996-02-01), Schultheis et al.
patent: 5606802 (1997-03-01), Ogawa
patent: 5711080 (1998-01-01), Yamada
patent: 5819424 (1998-10-01), Ohtomo et al.
patent: 5907907 (1999-06-01), Ohtomo et al.
patent: 5983511 (1999-11-01), Osaragi et al.

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