Electronic distance-measuring instrument

Details Electronic distance-measuring instrument Electronic distance-measuring instrument

1979-08-21

1981-10-13

Atkinson, Charles E.

Boots, shoes, and leggings

364560, 356 3, G01B 714

Patent

active

042952018

ABSTRACT:
A distance measuring instrument is provided for simple fieldwise mapping of an area. The instrument comprises an electronic distance meter, a unit for determining a vertical angle for aligning the instrument with a measuring point, and a unit for obtaining a horizontal angle for the alignment of the instrument with a measuring point. The horizontal angle unit comprises a terrestrial magnetic-field detector which comprises at least two detector units fixedly mounted in the instrument. The units are directed in mutually different directions so that at least two components of the magnetic flux in an instrument-based coordinate system are obtained by the units. A calculating unit is arranged to convert the coordinates of the components of the terrestrial magnetic field from the instrument-based coordinate system to an earth-based coordinate system. The vertical angle obtained from the vertical angle unit is used for this conversion. The calculating unit is arranged to calculate the direction of the terrestrial magnetic field in a horizontal plane and determine the horizontal angle relative to a reference direction.

REFERENCES:
patent: 3680355 (1972-08-01), Goldstein et al.
patent: 3991361 (1976-11-01), Mattern et al.
patent: 4006631 (1977-02-01), Garner
patent: 4038527 (1977-07-01), Brodie et al.
patent: 4070674 (1978-01-01), Buell et al.
patent: 4113381 (1978-09-01), Epstein
patent: 4134681 (1979-01-01), Elmer
patent: 4146927 (1979-03-01), Erickson et al.
patent: 4179741 (1979-12-01), Rossani
patent: 4192002 (1980-03-01), Draper

Affiliated with

Also associated with

Rating

Electronic distance-measuring instrument does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electronic distance-measuring instrument, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electronic distance-measuring instrument will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-934431