Sensor assembly combining signals with enhanced asymmetry for detecting direction of rotation of an object
US7009384B2 · kind B2 · utility
16Cited by
24References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 3, 2003 |
| Grant date | Mar 7, 2006 |
| Priority date | — |
| Expiry date | Mar 18, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P13/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A target wheel sensor assembly includes a target wheel, a magnet, and two or more sensing elements placed therebetween. The magnet and the sensing elements are configured so that as the target wheel rotates each of the sensing elements outputs a respective asymmetric signal relative to the direction of rotation of the target wheel or an object mechanically connected to the wheel. Each of these asymmetric signals is differentially combined with one another to determine the direction of motion of the target wheel, and, if optionally desired, the position of the target wheel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.