Patent · US Active

Rotation angle sensor for a stator

US10955262B2 · kind B2 · utility

0Cited by

1References

9Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Fabian Utermoehlen · Lippstadt, DE
Stefan Leidich · Rutesheim, DE
Ralf Kieser · Bietigheim-Bissingen, DE

Key dates

Filing date	Aug 16, 2017
Grant date	Mar 23, 2021
Priority date	—
Expiry date	Sep 21, 2037

Classification

Technology area (CPC G)Physics
CPC primaryG01D5/2053
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A rotary sensor includes a stator element and a rotor element that is rotatably mounted in respect of the stator element about an axis of rotation. A rotary angle can be captured by inductive coupling between the rotor element and the stator element. The rotary sensor further includes a measuring device configured to capture the rotary angle depending on the inductive coupling between the rotor element and the stator element. The stator element has at least one transmission coil for emitting alternating electromagnetic fields and at least two reception coils for capturing alternating electromagnetic fields, when the measuring device is configured to excite the at least one transmission coil with at least two mutually different frequencies for emitting at least two alternating electromagnetic fields.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.