Robust six degree-of-freedom micromachined gyroscope with anti-phase drive scheme and method of operation of the same
US8113050B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 25, 2006 |
| Grant date | Feb 14, 2012 |
| Priority date | — |
| Expiry date | Nov 9, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/1225
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of operating an anti-phase six degree-of-freedom tuning fork gyroscope system comprises the steps of driving a first three degree-of-freedom gyroscope subsystem, and driving a second three degree-of freedom gyroscope subsystem in an anti-phase mode with the first gyroscope subsystem at an anti-phase resonant frequency. Acceleration or an angular rate of motion is sensed by the first and second three degree-of-freedom gyroscope subsystems operating in a flat frequency response range where the anti-phase resonant frequency is designed. Response gain and phase are stable and environmental and fabrication perturbations are avoided by such operation. A anti-phase six degree-of-freedom tuning fork gyroscope system which operates as described is also characterized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.