Position sensor and assembly
US7474090B2 · kind B2 · utility
57Cited by
13References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 23, 2007 |
| Grant date | Jan 6, 2009 |
| Priority date | — |
| Expiry date | Oct 23, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D2205/77
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A position sensor assembly including a circular-shaped or rhombus-shaped magnet and at least one magnetic flux density sensor, such as a Hall effect sensor, wherein rotation of the magnet is detected by the at least one sensor. The magnet may be positioned coaxially with the longitudinal axis of a rotor shaft of a motor and provided within a support. A position extraction algorithm may be employed using the output from the sensors to detect the position of the rotor shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.