Angular rate sensor with in-phase motion suppression structure
US10330476B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 12, 2017 |
| Grant date | Jun 25, 2019 |
| Priority date | — |
| Expiry date | Oct 30, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C19/5769
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An angular rate sensor includes four Coriolis masses, configured such that the Coriolis masses move along perpendicular drive and sense axes, and a lever mechanism having first and second sets of levers. The first set of levers is coupled outside a boundary of the Coriolis masses, and the second set of levers is coupled within a boundary of the first set of levers and between the Coriolis masses. The second set of levers is configured to produce an anti-phase drive mode motion of the Coriolis masses along the drive axis. The first set of levers is configured to allow an anti-phase sense mode motion of the Coriolis masses along the sense axis responsive to the angular rate sensor rotating around an input axis that is perpendicular to the drive and sense axes. The first and second sets of levers are configured to constrain an in-phase motion of the Coriolis masses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.