Device for rotation angle detection
US10578420B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 25, 2018 |
| Grant date | Mar 3, 2020 |
| Priority date | — |
| Expiry date | Jun 25, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B7/28
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A rotation angle detection system comprises a magnet arranged to rotate around a rotation axis. A first magnetic detection circuit defines a first surface provided with a first and second pairs of magnetic detection elements. A signal processing unit is configured to output a signal representative of a rotation angle of the magnet based on outputs of the first and second pair of magnetic detection elements. A second magnetic detection circuit is provided with another first and second pairs of magnetic detection elements. The signal processing unit is configured to output a redundant signal corresponding to a rotation angle of the magnet based on outputs of the other first pair of magnetic detection elements and the other second pair of magnetic detection elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.