Magnetic sensor with high and low resolution tracks
US7999537B2 · kind B2 · utility
2Cited by
4References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 12, 2007 |
| Grant date | Aug 16, 2011 |
| Priority date | — |
| Expiry date | Sep 8, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/145
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sensing apparatus that includes first and second magnet assemblies. The first magnet assembly includes first and second magnets that have respective first and second opposite magnetic fields, and respective first and second dimensions. The first dimension is relatively smaller than the second dimension. The second magnet assembly is positioned at a distance from the first magnet assembly. The second magnet assembly includes a third magnet that has a third magnetic field which is opposite to the first magnetic field.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.