North seeking and course keeping gyro device
US4442723A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 27, 1981 |
| Grant date | Apr 17, 1984 |
| Priority date | — |
| Expiry date | Nov 27, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/1254
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A gyro device arranged to be mounted in a vehicle and operable selectively as a directional gyro or as a gyro compass, which includes PA1 a gyro generating signals relative to two measuring directions, an azimuth gimbal mounted with its pivot axis oriented substantially vertically, a drive unit connected to receive the signal from a first position sensor and for pivoting a precession gimbal supported by the azimuth gimbal about a precession axis into a position in which the gyro spin axis is parallel to the pivot axis of said azimuth gimbal, a second position sensor providing a signal representative of the inclination of the precession axis to the horizontal, and a switching member for effecting pivoting of the precession gimbal about the precession axis to bring the spin axis of the gyro into a horizontal orientation for permitting operation of the device as a directional gyro.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.