Method for calibrating frequency of driving voltage waveform for linear resonance device and related device
US10958203B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 14, 2019 |
| Grant date | Mar 23, 2021 |
| Priority date | — |
| Expiry date | Nov 14, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
There are provided a method, a system and a device for calibrating a frequency of a driving voltage waveform for a linear resonance device. An actual sampling frequency is continuously corrected, so that a difference between a measured natural frequency of the linear resonance device obtained during a calibration process and a frequency of a standard driving voltage waveform stored in a driving chip for the linear resonance device is in a predetermined range. The driving chip outputs a driving waveform at a finally corrected actual sampling frequency, to drive the linear resonance device. Further, only an actual sampling frequency is required to be adjusted, and it is not required to modify waveform data stored in the driving chip for the linear resonance device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.