Circuit for levitated ball inclinometer
US4430803A · kind A · utility
6Cited by
4References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 15, 1982 |
| Grant date | Feb 14, 1984 |
| Priority date | — |
| Expiry date | Jun 15, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C9/06
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An inclinometer has a ferromagnetic ball levitated between pairs of electromagnets. When the inclinometer changes attitude, the ball moves in response to the change in relative gravity direction. Alternating currents are applied to the proper electromagnets and in the magnitudes needed to re-center the ball. The same signals which determine the re-centering currents are the inclinometer outputs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.