Sensor device for ascertaining at least one rotation characteristic of a rotating element

US9958297B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Dayo Oshinubi · Rutesheim, DE
• Stefan Leidich · Rutesheim, DE

Key dates

• Filing date: Jan 25, 2017
• Grant date: May 1, 2018
• Expiry date: Jan 25, 2037

Classification

• Technology area (CPC G): Physics
• CPC primary: G01D2205/771
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A sensor device for ascertaining at least one rotation characteristic of a rotating element is provided. The sensor device includes at least one trigger wheel which is able to be connected to the rotating element. The rotating element and the trigger wheel have an axis of rotation. The sensor device includes at least one coil array. The coil array encompasses at least one excitation coil and at least one receiver coil. The coil array is situated on at least one circuit carrier. The trigger wheel as a trigger wheel profile. The sensor device is designed to ascertain a change in an inductive coupling between the excitation coil and the receiver coil as a function of a position of the trigger wheel. The circuit carrier is situated coaxially with the axis of rotation of the trigger wheel. The circuit carrier surrounds the trigger wheel at least partially in a circular manner.