Magnetic field sensor having primary and secondary magnetic field transducers with different magnetic field saturation characteristics
US10006972B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 10, 2016 |
| Grant date | Jun 26, 2018 |
| Priority date | — |
| Expiry date | Nov 10, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/096
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A magnetic field sensor is disclosed for providing an output signal in response to an external magnetic field. The sensor comprises a primary magnetic field transducer for producing a primary signal in response to the external magnetic field and having a first magnetic field saturation characteristic; a secondary magnetic field transducer for producing a secondary signal in response to the external magnetic field and having a second magnetic field saturation characteristic. The first magnetic field saturation characteristic is different from the second magnetic field saturation characteristic. The sensor is configured to use the secondary signal to correct for errors in the output signal arising from saturation of the primary transducer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.