Systems and methods for controlling oscillation of a gyroscope

US9645166B2 · kind B2 · utility

Assignee

• Lumedyne Technologies Incorporated · US

Inventors

• Richard L. Waters · San Diego, US
• John David Jacobs · San Diego, US
• Jeffrey Alan Brayshaw · San Diego, US
• Brad Chisum · San Diego, US
• Mark Fralick · San Diego, US
• Charles Harold Tally, IV · Carlsbad, US
• Xiaojun Huang · Sunnyvale, US

Key dates

• Filing date: Jun 26, 2015
• Grant date: May 9, 2017
• Expiry date: Aug 13, 2035

Classification

• Technology area (CPC G): Physics
• CPC primary: G01P15/0802
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Systems and methods are disclosed herein for determining rotation. A gyroscope includes a drive frame and a base, the drive frame springedly coupled to the base. The gyroscope includes a drive structure configured for causing a drive frame to oscillate along a first axis. The gyroscope includes a sense mass springedly coupled to the drive frame. The gyroscope includes a sense mass sense structure configured for measuring a displacement of the sense mass along a second axis orthogonal to the first axis. The gyroscope includes measurement circuitry configured for determining a velocity of the drive frame, extracting a Coriolis component from the measured displacement, and determining, based on the determined velocity and extracted Coriolis component, a rotation rate of the gyroscope.