Capacitive sensor
US6823747B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2003 |
| Grant date | Nov 30, 2004 |
| Priority date | — |
| Expiry date | Feb 28, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C2009/062
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A capacitive sensor includes a retaining member, an intermediate member retained by the retaining member such that the intermediate member can rotate around a first axis, a movable member retained by the intermediate member such that the movable member can rotate around a second axis which is perpendicular to the first axis, a weight provided on the movable member, a movable electrode unit consisting of one or more electrodes which is provided on the movable member, and a board on which a fixed electrode unit consisting of one or more electrodes is provided such that the fixed electrode unit faces the movable electrode unit. At least one of the movable electrode unit and the fixed electrode unit includes a plurality of electrodes, and capacitances between the one or more electrodes of the movable electrode unit and the one or more electrodes of the fixed electrode unit are detected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.