Harmonic compensation with magnitude feedback for magnetic field sensors
US11555716B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 20, 2021 |
| Grant date | Jan 17, 2023 |
| Priority date | — |
| Expiry date | Oct 20, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/204
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A magnetic field sensor configured to sense a parameter associated with a rotatable target that affects a magnetic field includes at least one magnetic field sensing element that is arranged to generate a signal that is indicative of the magnetic field, a magnitude calculator responsive to the signal and configured to generate a magnitude signal indicative of a magnitude of the magnetic field, and a harmonic compensator responsive to the magnitude signal and configured to generate an estimate of a harmonic error of the signal and apply the estimate of the harmonic error of the signal to the signal to generate a corrected signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.