Nonvolatile multitum rotation sensor with magnetic particle following a spiral track
US9851225B2 · kind B2 · utility
2Cited by
0References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 6, 2015 |
| Grant date | Dec 26, 2017 |
| Priority date | — |
| Expiry date | Jan 22, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D2205/773
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A non-volatile, absolute rotation sensor employs a radial guide and spiral guide rotating with respect to each other to move a marker element continuously along the radial guide so that a distance of the marker element along the radial guide provides an indication of shaft movement over multiple turns. A sensor system senses the distance of the marker element along the radial guide to provide an electric output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.