Mersen France Amiens Sas

Université De Picardie Jules Verne

Radjy Ramlall

Geoffroy Berard

Jérôme Dubois

Valéry Bourny

Yacine Bouanba

Olivier Bernard

Aurélien Lorthois

Benoit White

The invention relates to a current sensor device for monitoring the current flowing through a brush, comprising: —a brush holder () extending in a longitudinal direction and defining a through-housing intended to accommodate a brush such that one end of the brush which is intended to brush against a rotating movable surface protrudes from the brush holder, a Hall effect sensor () arranged to detect a magnetic field; —a concentrator () for concentrating the magnetic fields in a concentrated magnetic field zone and for protecting the zone from external magnetic fields, in which: —the concentrator () is mounted on the brush holder () so as to surround at least part of the housing of the brush holder; —the Hall effect sensor is mounted on the brush holder () at a position located inside the concenrated magnetic field zone.

Current sensor device and method for assembling such a device

A system for transferring current between a rotating element and a fixed element, comprising&#x2014;a support in the general shape of a sheet () comprising a conductive portion () electrically connected to the fixed element, &#x2014;a brush holder () mounted on the support () and supporting a brush () that is pushed into contact against the rotating element, &#x2014;electrical connection means () for connecting the conductive portion () of the support to a cable () that is joined to the brush (), wherein a resistive element () is situated between the brush () and the conductive portion () of the support () and prevents current from flowing directly between the conductive portion and the brush.

System for transferring power between a rotating element and a fixed element

A system for transferring data between a rotating element and a fixed element by wireless optical communication, including a plurality of rotating optical transmitters distributed in a ring around the turning element and solidly attached to the rotating element, and at least one fixed optical receiver mounted on and solidly attached to the fixed element, arranged at the same height as the plurality of rotating optical transmitters in which the rotating optical transmitters simultaneously transmit a same optical signal, independently of the angular position of the rotating element and are sufficiently numerous such that regardless of the angular position of the rotating element, the fixed optical receiver receives an optical signal.

Wireless optical communication system between a rotating element and a fixed element

Growing community of inventors

Lomme, France

Radjy Ramlall