Rotary position sensor
US7391208B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Mar 20, 2006 |
| Grant date | Jun 24, 2008 |
| Priority date | — |
| Expiry date | May 19, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/147
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A position sensor for sensing an angular position including at least two magnetic conductive structures, at least two magnets, a magnetic flux responsive device, and an arcuate magnet. The at least two magnetic conductive structures include a first magnetic conductive structure and a second magnetic conductive structure. The first magnetic conductive structure is substantially arcuately parallel with the second magnetic conductive structure. The at least two magnets include a first magnet and a second magnet. The first magnet being magnetically coupled with the first magnetic conductive structure and with the second magnetic conductive structure. The second magnet being magnetically coupled with both the first magnetic conductive structure and the second magnetic conductive structure. The magnetic flux responsive device is constrained to travel a path that is partially located between the first magnetic conductive structure and the second magnetic conductive structure. The path extends beyond at least one of the at least two magnets. The arcuate magnet is positioned concentrically with the path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.