Magnetic field sensor with reduced influence of external stray magnetic fields
US11327127B2 · kind B2 · utility
2Cited by
8References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 10, 2019 |
| Grant date | May 10, 2022 |
| Priority date | — |
| Expiry date | Aug 1, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/091
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A magnetic field sensor responsive to a movement of a target object can include a plurality of magnetoresistance elements arranged in a line and having a span according to y(1−1/x), where y is equal a full spatial period of the target object and where x is equal to a total quantity of magnetoresistance elements in the plurality of magnetoresistance elements. The plurality of magnetic field sensing elements is operable to generate a signal that is substantially not responsive to the movement of the target object but is responsive to stray external magnetic fields.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.