SENSOR DEVICE, DRIVING SYSTEM, METHOD FOR MEASURING A TORQUE AND METHOD FOR CONTROLLING A DRIVING SYSTEM

摘要

A sensor device includes a base element extending in an axial direction and a first magneto elastic active region representing a first longitudinal section of a surface of the base element. The first longitudinal section extends in the axial direction and is magnetized in a first circumferential direction. The sensor device further comprises a first magnetic field sensor overlapping with the first longitudinal section, and a second magnetic field sensor disposed at a distance with respect to the first magnetic field sensor along the axial direction and overlapping with the first longitudinal section.

主权项

1. A sensor device, comprising:
a base element extending in an axial direction; a magneto elastic active region representing a first longitudinal section of a surface of said base element, said first longitudinal section extending in the axial direction and being magnetized in a first circumferential direction; a first magnetic field sensor overlapping with said first longitudinal section, and a second magnetic field sensor disposed at a distance with respect to said first magnetic field sensor along the axial direction and overlapping with said first longitudinal section.