Position encoder arrangement and method for determining a failure status of such arrangement
US11473932B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 16, 2019 |
| Grant date | Oct 18, 2022 |
| Priority date | — |
| Expiry date | Jun 24, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/24457
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A position encoder arrangement is configured to detect the position of a movable source based on a source field, which is a magnetic field or an electric field, emitted by the source. The position encoder arrangement includes a number of sensor elements that are evenly distributed and each is configured to provide a sensor value based on the source field at the sensor element's location. The arrangement further includes an evaluation unit that is configured to determine a fine position value for the position of the movable source, and to determine from the sensor values a trustworthiness of the fine position value and/or an error flag indicating whether a failure status of the position encoder arrangement is present.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.