Measuring system

摘要

A measuring system is provided that includes a magnetic field sensor array, an evaluation circuit for evaluating measurement signals of the magnetic field sensor array, and a rotatable encoder that has a mass element to change a magnetic field vector in the magnetic field sensor array. The encoder has a spring element in which the mass element is attached to the spring element. The encoder has a linear guide, and the mass element is guided in a radial direction in the linear guide such that during a rotation of the encoder the mass element can be moved by centrifugal force and the centrifugal force works against the spring force of the spring element. The magnetic field sensor array is arranged toward the encoder to measure a change, caused by the movement of the mass element, in the magnetic field vector.

主权项

1. A measuring system, comprising:
a magnetic field sensor array; an evaluation circuit for evaluating measurement signals of the magnetic field sensor array; and an encoder having a linear guide and a mass element to change a magnetic field vector in the magnetic field sensor array, the encoder having a spring element, the mass element being attached to the spring element, the mass element being adapted to be guided in a radial direction in the linear guide such that during a rotation of the encoder the mass element is moved by centrifugal force and the centrifugal force works against the spring force of the spring element, and wherein the magnetic field sensor array is arranged along a rotational axis of the encoder to measure a three dimensional change, caused by the movement of the mass element, in a magnetic field vector determined by the interaction of the mass element and a magnet and/or a coil which generates the magnetic field, and wherein the magnetic field sensor array has at least one magnetic field sensor, and wherein the magnetic field sensor is arranged between the encoder and the magnet and/or coil.