Device, system and method for obtaining a magnetic measurement with permanent magnets
AssigneeAspect Imaging Ltd.
InventorsUri Rapoport, Yair Goldfarb, Yoram Cohen
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Abstract
A magnetic field device, with a first magnet, a first ferromagnetic element positioned adjacent to the first magnet, a second magnet, a second ferromagnetic element positioned adjacent to the second magnet and relative to the first ferromagnetic element to create a gap between the first ferromagnetic element and the second ferromagnetic element, and a third magnet positioned between the first ferromagnetic element and the second ferromagnetic element and within the gap.
Claims20
A magnetic field device, comprising:
- a first magnet;
- a first ferromagnetic element positioned adjacent to the first magnet;
- a second magnet;
- a second ferromagnetic element positioned adjacent to the second magnet and relative to the first ferromagnetic element to create a gap between the first ferromagnetic element and the second ferromagnetic element;
- and
- a third magnet positioned between the first ferromagnetic element and the second ferromagnetic element and within the gap.
A method of directing magnetic fields into a measurement volume, the method comprising:
- generating a first magnetic field in a first direction with a first magnetic field strength;
- distributing the first magnetic field into the measurement volume to create a substantially uniform magnetic flux;
- and
- increasing a total magnetic flux into the measurement volume by directing a second magnetic field in a second direction with a second magnetic field strength, wherein the second direction is parallel to the first direction.
Dependencies are inferred from the claim text.