Electrical reference resistors for GMR or TMR revolution counters, formed from spirally arranged magnetic domain wall conductors which have opposing straight conductor sections.
DE102025000915B3Undetermined Publication Date: 2026-08-06LEIBNIZ INST FUR PHOTONISCHE TECHN E V ENGL LEIBNIZ INST OF PHOTONIC TECH
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- LEIBNIZ INST FUR PHOTONISCHE TECHN E V ENGL LEIBNIZ INST OF PHOTONIC TECH
- Filing Date
- 2025-03-12
- Publication Date
- 2026-08-06
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Abstract
The invention relates to electrical reference resistors for GMR or TMR revolution counters formed from spirally arranged magnetic domain wall conductors, which have opposing straight conductor sections. The object of the invention, to provide a reference resistor that is as simple as possible and can be manufactured using a uniform technology, such as that used for the production of the domain-transporting spiral, with the aim that the resistance value of the reference resistors is independent of the magnetic state in the reference resistors, is achieved by the fact that the reference resistors consist of the same material layer combination as the magnetic domain wall conductors of the revolution counter and their electrical resistance is determined by long straight regions with a longitudinal direction (La) that are arranged at an angle of 90° to the reference direction (201).
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Citation Information
Patent Citations
Magnetic revolution counter for unambiguous determining revolutions of rotating element, has resistance unit providing measurement for magnetic domain corresponding to loop segments and definite condition of revolution of rotating element
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