Absolute capacitive rotary encoder
US10054467B2 · kind B2 · utility
0Cited by
7References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 3, 2015 |
| Grant date | Aug 21, 2018 |
| Priority date | — |
| Expiry date | Jan 12, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/2415
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Some embodiments of the invention include an absolute capacitive rotary encoder comprising a first disk, which is rotatable relative a second disk, and a first sensor ring and a second sensor ring. The first and the second sensor ring each have a multiplicity of first coupling electrodes and second coupling electrodes capacitively coupling to one another. The first coupling electrodes of a respective sensor ring have different coupling signal phases. The first sensor ring and the second sensor ring are matched to one another in such a way that an angle is determinable absolutely.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.