Gyro compass

Geometrical instruments – Indicator of direction of force traversing natural media – Gyroscopically controlled or stabilized

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

33324, G01C 1938

Patent

active

054169763

ABSTRACT:
A gyro compass having a gyro case housing therein a gyro and supported with freedom of three axes, functions for outputting a signal corresponding to an inclined angle of the gyro spin axis relative to the horizontal plane, and a function for applying a torque around a vertical axis of the gyro case in proportion to an input signal. A controller is supplied with a signal corresponding to the inclined angle and a latitude value at which the gyro compass is located, and a constant relative to the input latitude value is determined by the controller after the gyro compass is energized. A signal, resulting from differentiating the signal corresponding to the inclined angle during a predetermined time, is added to the product of the signal corresponding to the inclined angle and the constant. This added signal functions as the input signal for the gyro, whereby a constant optimum north-seeking movement is carried out regardless of the change of the latitude value. An error corrector is provided having supplied to it the signal corresponding to the inclined angle, the speed signal of the vehicle and its heading azimuth signal, and a bias error caused by the inclined angle of the gyro compass spin axis and an azimuth error caused by the movement of the vehicle are estimated and calculated to thereby reduce an azimuth error caused by any bias error and the vehicles' movement.

REFERENCES:
patent: 3555692 (1971-01-01), Aberle et al.
patent: 3935644 (1976-02-01), Kawada et al.
patent: 3938256 (1976-02-01), Crocker, Jr.
patent: 4443952 (1984-04-01), Schelier et al.
patent: 4458426 (1984-07-01), O'Connor et al.
patent: 4622646 (1986-11-01), Waller et al.
patent: 4879918 (1989-11-01), Hojo et al.
patent: 5115570 (1992-05-01), Kroumann et al.
patent: 5117559 (1992-06-01), Sindlinger et al.
patent: 5187870 (1993-02-01), Abe et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Gyro compass does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

     

Profile ID: LFUS-PAI-O-2132429

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.