3D magnetic field detection element and 3D magnetic field detection device

摘要

[Problem] In order to expand the use of the wearable computer of the orientation sensor, the tip of the wire guide of the medical catheter, and the like, improvement of the magnetic field detection force of the three-dimensional magnetic field detection element and further miniaturization and thinning are required. [Measures] A magnetic field detecting element consisting of three GSR elements and three soft magnetic bodies are formed. In the three axis directions orthogonal to each other at the origin, which is the center point of measurement, the first axis direction is two elements with the origin interposed therebetween. The magnetic field in the first axis direction is measured by measuring the first magnetic field in the first axis direction, and the second axis direction measures the magnetic field in the second axis direction by arranging one element at the origin position. The two soft magnetic bodies are combined to form two crank-shaped magnetic circuits in point symmetry, and the magnetic field in the third axis direction is measured.