Low-noise fluxgate magnetometer with increased operating temperature range
US10466309B2 · kind B2 · utility
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37References
6Claims
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Key dates
| Filing date | Sep 27, 2018 |
| Grant date | Nov 5, 2019 |
| Priority date | — |
| Expiry date | Sep 27, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V3/26
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A magnetic field measurement device includes an excitation circuit including an excitation coil that is coupled to a resonation control circuit. The excitation coil is wound around an amorphous soft magnetic core. The magnetic field measurement device includes a detection circuit including a detection coil that is wound around the amorphous soft magnetic core. The resonation control circuit is coupled to the excitation circuit and to the detection circuit to adjust a resonant frequency of the detection circuit responsive to temperature variations of the amorphous soft magnetic core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.