Magnetometric device for evaluating a physical parameter, and use
US8098066B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2008 |
| Grant date | Jan 17, 2012 |
| Priority date | — |
| Expiry date | May 4, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01G19/12
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A magnetometric device for evaluating a physical parameter (D, K), comprising a circuit (1) which is sensitive to a magnetic field, a measurement circuit (2) and a magnetic field generator (3), the sensitive circuit (1) being subjected to a magnetic field which varies with the physical parameter to be measured and having an electrical characteristic which is evaluated by the measurement circuit and which varies as a function of the magnetic field. The field generator (3) is designed to reverse the polarity of the applied magnetic field, the evaluation of the physical parameter thus being able to be corrected of the parasitic influence of the terrestrial magnetic field.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.