Device for counting turns of a wheel by means of a coil and counter equipped with said counting device
US10527458B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 21, 2016 |
| Grant date | Jan 7, 2020 |
| Priority date | — |
| Expiry date | Jul 21, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D4/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device for counting turns of a rotating member (8) rotating about an axis with respect to a housing (100), comprising a wheel (6) made from non-metal material rotatably connected to the rotating member and provided locally with at least one eccentric metal mass (7) leaving a part of the wheel uncovered, at least two coils (1, 2) that are separated from each other and fixedly mounted with respect to the housing facing a portion of the trajectory of the metal mass in such a way that at least all of the coils except one are always responsive to said metal mass and that each belong to an inductive circuit (10.1, 10.2) electrically connected to a counting unit (5). A counter incorporating such a device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.