Device for determining a rotary angle
US6016605A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 7, 1993 |
| Grant date | Jan 25, 2000 |
| Priority date | — |
| Expiry date | Apr 7, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/2073
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device for contactless determination of a rotary angle has a coil body, sensor coils arranged on the coil body so that their inductivity and alternating current resistance values vary in dependence on a relative change of the size of regions of a sleeve-shaped measuring part composed of electrically conductive and/or ferromagnetic material which are associated with the sensor coils, at least one coil being formed as a wire coil which is arranged on a side of the coil body facing the measuring part. The at least one coil has several coil regions extending in a circumferential direction and parallel to an outer surface of the coil body, and in the regions of the coil a winding direction of the at least one coil changes on the catches.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.