Rotary position sensor
US8450999B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 16, 2010 |
| Grant date | May 28, 2013 |
| Priority date | — |
| Expiry date | Oct 25, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D11/245
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sensor assembly for sensing a movable object which, in one embodiment, includes a housing defining an interior cavity. A rotor is retained in the cavity. The rotor defines a central bore and a magnet is mounted in an off-center pocket defined by the rotor. The rotor is coupled to the shaft of the movable object whose position is to be measured. A sensor is also retained in the cavity in a relationship at least partially overlying the magnet and adapted to sense at least the direction of the magnetic field generated by the magnet to generate an electrical signal indicative of the position of the movable object. In another embodiment, the rotor and sensor are mounted in separate interior housing cavities separated by an interior housing wall.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.