Magnetic sensor and magnetic detecting method of the same

摘要

The present invention relates to a magnetic sensor and a magnetic detecting method. A first arrangement pattern includes: a first magnetic detection unit (201) including a magnetic sensitivity material (201a) and a magnetic convergence material (201b) having a length different from a length of the magnetic sensitivity unit on a substrate, and being arranged to be parallel to the substrate and arranged horizontally so that a median line (Ma) passing through a midpoint of the magnetic sensitivity material in a longitudinal direction and a median line (Mb) of the magnetic convergence material in the longitudinal direction do not cross with each other; a second magnetic detection unit (202) having the structure same as the structure of the first magnetic detection unit; and a connecting unit electrically connecting the magnetic sensitivity material of the first magnetic detection unit in series with a magnetic sensitivity material of the second magnetic detection unit.

主权项

1. A magnetic sensor comprising a first structure, the first structure comprising:
a first arrangement pattern; and a second arrangement pattern, wherein each of the first arrangement pattern and the second arrangement pattern comprises:
a first magnetic detection unit;a second magnetic detection unit; anda connecting unit configured to electrically connect the first magnetic detection unit and the second magnetic detection unit, wherein each of the first magnetic detection unit and the second magnetic detection unit comprises:
a quadrangular magnetic sensitivity material having a first length in a longitudinal direction; anda quadrangular magnetic convergence material having a second length in a longitudinal direction different from the first length of the quadrangular magnetic sensitivity material, wherein the first magnetic detection unit and the second magnetic detection unit of each of the first arrangement pattern and the second arrangement pattern are arranged such that a first virtual line and a second virtual line are parallel to each other, the first virtual line passing to be parallel to a plane of a substrate and passing through a midpoint in the longitudinal direction of the quadrangular magnetic sensitivity material perpendicularly to the longitudinal direction of the quadrangular magnetic sensitivity material, the second virtual line passing to be parallel to the plane of the substrate and passing through a midpoint in the longitudinal direction of the quadrangular magnetic convergence material perpendicularly to the longitudinal direction of the quadrangular magnetic convergence material, wherein in each of the first arrangement pattern and the second arrangement pattern, the connecting unit is configured to electrically connect the quadrangular magnetic sensitivity material of the first magnetic detection unit and the quadrangular magnetic sensitivity material of the second magnetic detection unit in series with each other, wherein in each of the first arrangement pattern and the second arrangement pattern, the quadrangular magnetic sensitivity material of the first magnetic detection unit and the quadrangular magnetic sensitivity material of the second magnetic detection unit are arranged between the quadrangular magnetic convergence material of the first magnetic detection unit and the quadrangular magnetic convergence material of the second magnetic detection unit, and wherein in each of the first arrangement pattern and the second arrangement pattern, the first magnetic detection unit and the second magnetic detection unit are arranged to be line-symmetric to each other.