Rotation rate sensor and method

US10502569B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Robert Maul · Reutlingen, DE
• Mirko Hattass · Stuttgart, DE
• Christian Hoeppner · Munich, DE

Key dates

• Filing date: Mar 11, 2016
• Grant date: Dec 10, 2019
• Expiry date: Jun 4, 2036

Classification

• Technology area (CPC G): Physics
• CPC primary: G01C19/574
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A rotation rate sensor includes a first rotationally suspended mass that exhibits a first axis of rotation. The first mass includes a first rotation-rate-measuring element that captures a first rate of rotation about the first axis of rotation and that outputs the first rate of rotation in a first signal. The sensor further includes a second rotationally suspended mass that exhibits a second axis of rotation and is arranged parallel to the first axis of rotation. The second mass includes a second rotation-rate-measuring element that captures a second rate of rotation about the second axis of rotation and that outputs the second rate of rotation in a second signal. The sensor further includes a propulsion device that propels the first and second mass and an evaluating device that outputs a difference of the signals as a third rate of rotation to be measured.