Patent · US Active

Rotational angle measuring system

US11460322B2 · kind B2 · utility

0Cited by

3References

7Claims

0Family size

Assignee

FRABA B.V. · NL

Inventors

FLORIAN HALLERMANN · Aachen, DE
HANNO VOLKER · Aachen, DE

Key dates

Filing date	Jul 11, 2019
Grant date	Oct 4, 2022
Priority date	—
Expiry date	Jul 11, 2039

Classification

Technology area (CPC G)Physics
CPC primaryG01D2205/26
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A rotation angle measurement system for detecting a shaft rotation. The rotational angle measurement system includes a rotor unit, a stationary stator unit, and a multi-turn sensor unit. The rotor unit is connected to the shaft to rotate therewith. The rotor unit radially surrounds the shaft and has at least one sensor magnet. The multi-turn sensor unit is arranged on the stationary stator unit spaced radially apart from the shaft. The multi-turn sensor unit interacts with the at least one sensor magnet to detect shaft revolutions. The multi-turn sensor unit includes a Wiegand sensor, at least one Hall sensor, an evaluation unit electrically connected to the Wiegand sensor and to the at least one Hall sensor, and a separate sensor unit circuit board which is fastened to the stationary stator unit and on which the Wiegand sensor, the at least one Hall sensor, and the evaluation unit are each arranged.

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