Orientation independent magnetic field sensor
US11385075B2 · kind B2 · utility
1Cited by
27References
37Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 21, 2020 |
| Grant date | Jul 12, 2022 |
| Priority date | — |
| Expiry date | Nov 26, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P3/489
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Methods and apparatus for an orientation insensitive speed sensor. Magnetic field sensing elements can be located on a circle, for example, to generate first and second channel signals which can be combined to generate an output signal. The location of the magnetic field sensing elements reduces the effects of stray fields. Embodiments can include true power own state processing to determine target position during start up.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.