Remote reading compass with 360 degree roll capability
US4471534A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 24, 1982 |
| Grant date | Sep 18, 1984 |
| Priority date | — |
| Expiry date | Nov 24, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C17/36
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A cylindrical compass gimballing and data readout system permitting 360.degree. rotation about both yaw and roll axes includes a cylindrical compass housing flooded with semiconductive fluid to permit transmission of a digitally multiplexed signal from a remote reading compass to a processing unit in which the fluid is interposed between spaced-apart plates located along and perpendicular to the roll axis of the compass. This permits electrical connection to and from the compass, and permits not only 360.degree. rotation about the yaw axis for compass heading readout, but also 360.degree. rotation of the compass about the roll axis to permit use in seismic streamers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.