Hemispherical resonator gyroscope
US10584967B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2016 |
| Grant date | Mar 10, 2020 |
| Priority date | — |
| Expiry date | Mar 6, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C19/5691
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
One example includes a hemispherical resonator gyroscope (HRG). The HRG includes a sensing system comprising a plurality of electrodes arranged in a symmetrical annular arrangement about a sensitive axis and configured to electrostatically force a resonator into a substantially periodic motion based on a plurality of forcer signals applied to the plurality of electrodes. The plurality of electrodes are configured to provide an indication of rotation about a sensitive axis of the HRG. The HRG also includes a controller configured to generate the plurality of forcer signals in a phase-disparate manner to provide the substantially periodic motion in a vibration pattern such that a ratio of the plurality of electrodes and the vibration pattern is a non-integer number, and to measure the rotation about the sensitive axis of the HRG in response to the plurality of forcer signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.