Apparatus and method for self-calibration of coriolis vibratory gyroscope
US8011246B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 22, 2008 |
| Grant date | Sep 6, 2011 |
| Priority date | — |
| Expiry date | Dec 29, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C19/5684
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A control component of an apparatus in one example is configured to signal a plurality of electrodes arranged in at least first, second, third, and fourth radial electrode groups along first, second, third, and fourth axes at approximately 0, 45, 90, and 135 degrees, respectively, around the planar resonator. During a first time period, the control component is configured to signal: the first radial electrode group to induce a drive oscillation in the planar resonator, the third radial electrode group to sense the drive oscillation, the second radial electrode group to sense a Coriolis force induced oscillation, and the fourth radial electrode group to null the Coriolis force induced oscillation. During a second time period after the first time period, the control component is configured to signal: the second radial electrode group to induce the drive oscillation in the planar resonator, the fourth radial electrode group to sense the drive oscillation, the first radial electrode group to sense the Coriolis force induced oscillation, and the third radial electrode group to null the Coriolis force induced oscillation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.