Arrangement for Determining a Revolution Rate and Direction of Rotation of a Rotating Component

摘要

A sensor device for contactlessly determining a revolution rate and a direction of rotation of a component that rotates during operation of the component, the component having, on at least one peripheral region, a circumferential structure of web-shaped or tooth-shaped radial protrusions and interposed grooves or tooth gaps includes: a threaded segment configured to positionally fix an arrangement of the sensor device so that the circumferential structure of the component is movable past the sensor device; a magnetic field generating device; and a magnetic field detecting device having at least three magnetic field sensors that are not arranged in alignment along a line. A distance between the magnetic field sensors that are the farthest apart from each other is less than or equal to a width of the grooves or tooth gaps of the component.

主权项

1. A sensor device (1) for contactlessly determining a revolution rate and a direction of rotation of a component (7) that rotates during operation of the component (7), the component (7) having, on at least one peripheral region, a circumferential structure of web-shaped or tooth-shaped radial protrusions (S) and interposed grooves (N) or tooth gaps, the sensor device (1) comprising:
a threaded segment (3) configured to positionally fix an arrangement of the sensor device (1) so that the circumferential structure of the component (7) is movable past the sensor device (1); a magnetic field generating device; and a magnetic field detecting device having at least three magnetic field sensors (6_1, 6_2, 6_3) that are not arranged in alignment along a line, wherein a distance between the magnetic field sensors that are the farthest apart from each other is less than or equal to a width (d_N) of the grooves (N) or tooth gaps of the component (7).