Method and apparatus for driving a multi-oscillator system
US10451454B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 8, 2018 |
| Grant date | Oct 22, 2019 |
| Priority date | — |
| Expiry date | Nov 8, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D18/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Various embodiments mitigate the risk of frequency-lock in systems having multiple resonators by dynamically changing the frequency at which at least one of the resonators is driven. More particularly, the drive frequency of at least one of the resonators is changed often enough that the multiple resonators do not have time to achieve frequency lock. Changes in the oscillation of the resonators may be analyzed to determine, for example, acceleration of such systems. Some embodiments implement self-test by assessing expected performance of a system with toggling drive frequencies. More particularly, some embodiments implement self-test by artificially inducing displacement of a movable member of a system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.