磁传感器

• Format: Patent
• Language: Chinese
• Published: 01.08.2025
• Subjects: ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS; ELECTRICITY; MEASURING; MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR; PHYSICS; TARIFF METERING APPARATUS; TESTING

本发明涉及一种磁传感器。磁传感器具备MR元件、至少一个磁轭、以及至少一个磁场产生体。至少一个磁轭包含由软磁性材料构成的磁性层，并且与MR元件隔开间隔地相邻。至少一个磁场产生体包含由铁磁性材料构成的铁磁性部、和由反铁磁性材料构成且与铁磁性部交换耦合的反铁磁性部，并且构成为产生对至少一个磁轭施加的磁场。 A magnetic sensor includes an MR element, at least one yoke, and at least one magnetic field generator. The at least one yoke includes a magnetic layer made of a soft magnetic material, and is adjacent to the MR element and spaced at a distance apart from each other. The at least one magnetic field generator includes a ferromagnetic portion made of a ferromagnetic material and an antiferromagnetic portion made of an antiferromagnetic material and exchange-coupled with the ferromagnetic portion, and is configured to generate a magnetic field to be applied to the at least one yoke.