Digital angular velocity detection device
US7328616B2 · kind B2 · utility
20Cited by
9References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 13, 2004 |
| Grant date | Feb 12, 2008 |
| Priority date | — |
| Expiry date | Jul 19, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P15/0888
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A digital angular velocity detection device, including a stat or formed on a substrate. A rotor operable to rotate in response to an external force is provided. The rotor has a plurality of electrodes formed at regular intervals on a curve at a predetermined radius away from a center of the rotor. A detector having detection electrodes facing the plurality of electrodes is provided. The detection electrodes are operable to detect a rotation frequency of the rotor based on a number of electrostatic capacitance variations generated between the plurality of electrodes and the detection electrodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.