Patent ID: 9746346
Date: 2017-08-29
CPC Classifications: G01D

Claim:
1. A position sensor comprising: a magnetic target comprising a magnetic multipole configured to generate a magnetic field comprising, at a first region, a first component, a second component, and a third component, wherein the first, second, and third components are mutually perpendicular to one another at the first region and wherein the magnetic target is configured and arranged to co-rotate with a rotating component such that the first component oscillates in a course of a rotation with a non-constant amplitude at the first region; and a sensor die comprising: a first sensor element configured to measure the first component at the first region; and a second sensor element configured to measure at least one of the second and third components substantially at the first region; and wherein the first and second sensor elements are mounted such that an air gap distance to a permanent magnetic ring (PMR) of the magnetic multipole is substantially constant in the course of the rotation and a projection in an air gap direction of a sensor track of the first sensor element, and a projection in another air gap direction of a sensor track of the second sensor element are both fully encompassed by the magnetic multipole.