Electromechanical apparatus comprising a capacitive device for detection of the angular position of a wheel set, and method for detection of the angular position of a wheel set
US9664534B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2015 |
| Grant date | May 30, 2017 |
| Priority date | — |
| Expiry date | Dec 22, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R27/26
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Electromechanical apparatus including a wheel set and an analogue indicator member which are integral in rotation, a stepping motor, and a capacitive device for detection of the angular position of the wheel set, including a rotor, a stator and an electronic measuring circuit, the stator including a first pair of electrodes having a first capacitance and a second pair of electrodes having a second capacitance, the rotor being adapted such that the values of the two capacitances depend on the angular position of the rotor, and an electronic measuring circuit being provided for generating an output signal representative of a difference between the respective values of the first and of the second capacitance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.