Contactless angular sensor
US10605629B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 27, 2017 |
| Grant date | Mar 31, 2020 |
| Priority date | — |
| Expiry date | Oct 27, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/2415
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sensor for sensing angular movement of an object with a structure. Mounted on the structure are a stationary first portion and a second portion that is movable in rotation carrying respectively a first printed circuit and a second printed circuit centered on the axis of rotation and that face each other and that include conductive areas for forming capacitive sectors and, respectively, a primary excitation winding and a secondary excitation winding connected to the conductive areas of the second printed circuit; the first printed circuit being connected to an electronic control circuit arranged to create excitation signals that are transmitted by the first printed circuit to the second printed circuit by magnetic coupling, and to demodulate signals transmitted by the second printed circuit to the first printed circuit by capacitive coupling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.