Nonvolatile rotation sensor with magnetic particle in serpentine track
US9846059B2 · kind B2 · utility
0Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 6, 2015 |
| Grant date | Dec 19, 2017 |
| Priority date | — |
| Expiry date | Dec 8, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D2205/26
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A nonvolatile, absolute multi-turn rotation sensor employs a magnetic particle that is indexed around a serpentine channel with successive passes of a magnet caused by rotation of the rotation sensor shaft. Sensors at regular locations around the track allow determination of the position of the magnetic particle and thus the total number of revolutions of the shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.