Vibratory rotation sensor with AC forcing voltages
US5760304A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 18, 1997 |
| Grant date | Jun 2, 1998 |
| Priority date | — |
| Expiry date | Feb 18, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C19/5691
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention is a method for applying forces to the resonator of a vibratory rotation sensor (VRS) by establishing an ac voltage between conducting regions of a surface of the resonator and one or more forcer electrodes opposing the conducting regions. The method comprises the steps of generating a first ac voltage having a first frequency and a first phase, generating a second ac voltage having a second frequency, and establishing the difference of the first and second ac voltages between conducting regions of a surface of the resonator and the one or more forcer electrodes. The first and second ac voltages are synchronized to the displacement of a point on the resonator when the resonator is vibrating. The ratio of the vibrational frequency of the VRS to either the difference or the sum of the first and second frequencies is a ratio of integers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.