Quadrature error compensation circuit for a MEMS gyroscope
US10330474B2 · kind B2 · utility
0Cited by
1References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 23, 2017 |
| Grant date | Jun 25, 2019 |
| Priority date | — |
| Expiry date | Sep 6, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C19/5726
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
MEMS gyroscopes are often integrated in modern electronic products for measuring orientation or rotation in those products. However, these MEMS gyroscopes are often inaccurate. The invention provides a compensation circuit to compensate for errors causing a distortion of a measured Coriolis force. The compensation circuit demodulates an input signal provided by the MEMS gyroscope to produce a quadrature signal indicative of the quadrature error and provides a compensation signal to the MEMS gyroscope for actively compensating the quadrature error.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.