Re-magnetization of a multi-turn spiral
AssigneeAnalog Devices International Unlimited Company
InventorsJochen Schmitt, Jan Kubik, Gavin Patrick Cosgrave
Life of this patent
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Abstract
Aspects of this disclosure relate to systems and methods for re-magnetization of a multi-turn loop. In one aspect, a multi-turn magnetic sensing system includes a multi-turn loop through which domain walls propagate in response to rotation of a magnetic field and a magnetization component configured to provide domain walls to the multi-turn loop. The system further includes one or more wires configured to annihilate at least two of the domain walls of the multi-turn loop.
Claims20
A multi-turn magnetic sensing system comprising:
- a multi-turn loop through which domain walls propagate in response to rotation of a magnetic field;
- a magnetization component configured to provide the domain walls to the multi-turn loop;
- and
- one or more wires configured to annihilate at least two of the domain walls of the multi-turn loop.
A method of initializing a multi-turn magnetic sensing system, the method comprising:
- providing domain walls to a multi-turn loop;
- and
- applying a magnetic field to a portion of the multi-turn loop to annihilate at least two of the domain walls of the multi-turn loop,
- wherein after the applying the multi-turn loop is configured to change state in response to rotation of a magnetic field.
A multi-turn magnetic sensing system comprising:
- a multi-turn loop through which domain walls propagate in response to rotation of a magnetic field;
- means for annihilating at least two of the domain walls of the multi-turn loop;
- and
- a decoder configured to output a turn count that is based on output signals from the multi-turn loop.
Dependencies are inferred from the claim text.