Tilt sensor
US6470580B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 2000 |
| Grant date | Oct 29, 2002 |
| Priority date | — |
| Expiry date | Jan 4, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C9/06
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The pendulum assembly comprises a permanent magnet disposed in the vicinity of a pendulum, a U-shaped yoke by which most of the magnetic flux of the permanent magnet is gathered and passes through, and a rotation shaft. The direction of axis of the rotation shaft is parallel to the direction of magnetic poles of the permanent magnet. Eddy current brakes are inserted into the spaces between one of the magnetic poles of the permanent magnet and one of the ends of the yoke, and between the other magnetic pole the magnet and the other end of the yoke. This construction achieves a more compact and shorter tilt sensor which is resistant to disturbances such as geomagnetism and other magnetic fields and vibrations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.