Patent ID: 9645203
Date: 2017-05-09
CPC Classifications: G01D,G01R

Claim:
1. A magnetic field measuring device comprising: a first semiconductor body that has a surface formed in a first x-y plane, the first semiconductor body including two magnetic field sensors spaced a distance apart from each other on the surface, the magnetic field sensors each measuring one z component of a magnetic field, and an x direction and a y direction and a z direction each being formed orthogonally to each other; and a first magnet that has a planar main extension surface formed in a second x-y plane, a direction of magnetization changing from a north pole to a south pole along a main extension surface on a symmetry surface of the first magnet; wherein the first semiconductor body and the first magnet are mounted directly to each other, wherein the first semiconductor body is disposed in a translatory offset manner to the first magnet in the x-y plane, and an offset between the first x-y plane and the second x-y plane formed in the z direction is smaller than a thickness of the first magnet formed in the z direction, and wherein one of the two magnetic field sensors is disposed in a vicinity of the north pole and the other of the two magnetic field sensors is disposed in a vicinity of the south pole so that the magnetic field sensors form signals having opposite polarities in a presence of a z component of the magnetic field.