Geometrical instruments – Indicator of direction of force traversing natural media – Gyroscopically controlled or stabilized
Patent
1999-01-09
2000-10-17
Bennett, G. Bradley
Geometrical instruments
Indicator of direction of force traversing natural media
Gyroscopically controlled or stabilized
33324, G01C 1934
Patent
active
061312975
ABSTRACT:
To provide a gyro compass for the use of a high speed ship, in a gyro compass of the type having north-seeking means which is applied to support a gyro sphere or gyro case immersed in a liquid in a tank, a substantially first-order lag filter is provided in an azimuth follow-up loop or a damping loop, the substantially first-order lag filter having a time constant T.sub.F which is approximately equal to a ratio C/k.sub.T of the viscosity torque coefficient C to the twisting torque coefficient k.sub.T of the torque produced between the tank and the gyro case. A speed error correcting means has a substantially first-order lag filter having a time constant which is approximately equal to that of the north-seeking means, and is applied to correct the output of azimuth indicator by a speed error correcting angle through the substantially first-order lag filter.
REFERENCES:
patent: 3855711 (1974-12-01), Kawada et al.
patent: 4458426 (1984-07-01), O'Connor et al.
patent: 4791727 (1988-12-01), Hojo et al.
patent: 5056052 (1991-10-01), Wick et al.
patent: 5247748 (1993-09-01), Hojo et al.
patent: 5416976 (1995-05-01), Hane et al.
Fukano Michio
Hojo Takeshi
Kawada Shin-ichi
Yamamoto Kanshi
Bennett G. Bradley
Tokimec Inc.
LandOfFree
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.
Profile ID: LFUS-PAI-O-457153