MAGNETIC SENSOR

摘要

Provided is a compact magnetic sensor that can detect a magnetic field in three orthogonal directions. To achieve same, the present invention is provided with: a magnetic convergence member (30) having a width in a first axis direction and a length in a second axis direction; a first magnetic detection unit (21) that is disposed at the positive side of the second axis with respect to the center in the lengthwise direction of the magnetic convergence member (30) and at the negative side of the first axis with respect to the magnetic convergence member (30) in a plan view; a second magnetic detection unit (22) that is disposed at the positive side of the second axis with respect to the center in the lengthwise direction of the magnetic convergence member (30) and at the positive side of the first axis with respect to the magnetic convergence member (30) in a plan view; a third magnetic detection unit (23) disposed at the negative side of the second axis with respect to the center in the lengthwise direction of the magnetic convergence member (30) and at the negative side of the first axis with respect to the magnetic convergence member (30) in a plan view; and a computation unit (50) that computes the magnetic field in the second axis direction and third axis direction on the basis of the output of the magnetic detection units (21-23).