Method for calibrating a magnetometer
US10996288B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 26, 2018 |
| Grant date | May 4, 2021 |
| Priority date | — |
| Expiry date | Jul 26, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention relates to a method for calibrating a magnetometer (3) in which the magnetometer (3) is arranged inside the windings (21) of a generator (2), a magnetic field being generated by the generator (2), a series of measurements of the magnetic field with the magnetometer (3) being carried out by varying the position of the magnetometer (3) and/or the electric currents in the windings (21) between each measurement, the electric currents applied in the windings (21) also being measured, a parametric transfer model being generated from a parametric measurement model of the magnetometer including parameters for calibrating the magnetometer and a parametric model of the magnetic field, the parameters for calibrating the magnetometer (3) being calculated by an optimisation algorithm from the parametric transfer model and measurements of the magnetic field by the magnetometer and measurements of the currents in the windings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.