Rotational angle sensor
US10866121B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 24, 2017 |
| Grant date | Dec 15, 2020 |
| Priority date | — |
| Expiry date | May 14, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F5/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A rotational angle sensor includes a stator element and a rotor element. The stator element has a stator transmitting coil, a stator circuit board with first and second planes, and at least two identically configured stator receiving coils arranged within the stator transmitting coil on the stator circuit board angularly offset from each other. The rotor element is mounted rotatably about a rotational axis relative to the stator element. The stator transmitting coil is inductively coupled to the stator receiving coils via the rotor element such that the inductive coupling is configured with reference to a rotational angle between the stator element and the rotor element so that the stator transmitting coil induces at least two angle-dependent alternating voltages in the stator receiving coils. The stator transmitting coil has coil conducting tracks positioned on the first and second planes of the stator circuit board. The coil conducting tracks on the first plane are interrupted in a passage region, and are connected to diverting tracks on the second plane by vias. The stator receiving coils have connection conductors on the first plane lead from stator receiving coil connections w…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.