Abstract: The invention relates to a current sensor device for monitoring the current flowing through a brush, comprising: —a brush holder (12) 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 (14) arranged to detect a magnetic field; —a concentrator (16) for concentrating the magnetic fields in a concentrated magnetic field zone and for protecting the zone from external magnetic fields, in which: —the concentrator (16) is mounted on the brush holder (12) so as to surround at least part of the housing of the brush holder; —the Hall effect sensor is mounted on the brush holder (12) at a position located inside the concenrated magnetic field zone.

Abstract: A system for transferring current between a rotating element and a fixed element, comprising—a support in the general shape of a sheet (10) comprising a conductive portion (11) electrically connected to the fixed element, —a brush holder (20) mounted on the support (10) and supporting a brush (30) that is pushed into contact against the rotating element, —electrical connection means (42) for connecting the conductive portion (11) of the support to a cable (40) that is joined to the brush (30), wherein a resistive element (12) is situated between the brush (30) and the conductive portion (11) of the support (10) and prevents current from flowing directly between the conductive portion and the brush.

Abstract: The invention relates to a current sensor device for monitoring the current flowing through a brush, comprising: —a brush holder (12) extending in a longitudinal direction and defining a through-housing intended to accommodate a brush such that one end of tie brush which is intended to brush against a rotating movable surface protrudes from the brush holder, a Hall effect sensor (14) arranged to detect a magnetic field: —a concentrator (16) for concentrating the magnetic fields in a concentrated magnetic field zone and for protecting the zone from external magnetic fields, in which: —the concentrator (16) is mounted on the brush holder (12) so as to surround at least part of the housing of the brush holder: —the Hall effect sensor is mounted on the brush holder (12) at a position located inside the concenrated magnetic field zone.

Abstract: A system for transferring current between a rotating element and a fixed element, comprising—a support in the general shape of a sheet (10) comprising a conductive portion (11) electrically connected to the fixed element—a brush holder (20) mounted on the support (10) and supporting a brush (30) that is pushed into contact against the rotating element—electrical connection means (42) for connecting the conductive portion (11) of the support to a cable (40) that is joined to the brush (30), wherein a resistive element (12) is situated between the brush (30) and the conductive portion (11) of the support (10) and prevents current from flowing directly between the conductive portion and the brush.

Abstract: 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.

Abstract: A brush device includes: a first and a second flange disposed side by side, each flange extending radially between a rubbing face intended to rub against a moveable element and a flange head intended to be connected electrically to another moveable element, a first plate rigidly fixed to the first flange only and extending tangentially above the head of the second flange, in such a way as to transmit, when this first plate is loaded by pressure unit, pressure forces on the second flange, a second plate, distinct from the first plate, rigidly fixed to the second flange only and extending tangentially above the head of the first flange in such a way as to bear on the first flange in the event of relative motion of the second flange with respect to the first flange towards the first moveable element.

Abstract: A method for monitoring the quality of a communication channel supported by a sliding contact is provided. The method includes controlling application of a continuous electrical signal onto one of elements of the sliding contact, receiving measured values of electrical signals measured on other of the elements of the sliding contact, estimating from the measured values, a variance parameter value, comparing the variance parameter value with a threshold and, on the basis of a result of the comparison, generating a signal representative of a quality of the communication channel.

Abstract: A device (100) for transmitting an electrical current between two elements that are movable relative to each other, by a strip (30) containing carbon, which extends in a longitudinal direction and is designed to rub against one of the elements so as to transmit an electrical current, the transmission device including: a strip holder (6), and bearing structure (10) designed to exert force on the strip (30), which urges same against the holder (6), the force being transverse relative to the longitudinal direction, wherein the bearing structure (10) and/or the holder (6) are shaped so as to occupy only a portion of the length of the strip (30) in the longitudinal direction.

Abstract: A system for transmitting signals, including a device for transmitting data between a movable and stationary portion of a windmill, to be installed on either portion, and including: connection elements for connecting at least one wireline to a plurality of groups to receive a plurality of respective data flows, each flow coming from a corresponding apparatus installed on the mobile portion or stationary portion; elements for processing the received streams, configured to assign a priority parameter value to each received stream, and in the event of concomitant reception of multiple streams, to compare the values of the priority parameter that are associated with the received streams and transmit by priority to a module for transceiving the radiofrequency signals, with a view to a radiofrequency transmission to the other of mobile or stationary portion, the stream associated with the value of the priority parameter corresponding to the highest degree of priority.

Abstract: A brush intended for ensuring electrical contact between a fixed part and a moving part, said brush comprising a layer composed chiefly of carbon, silver, and of another metal different from silver, for example copper.

Abstract: A method for monitoring the quality of a communication channel supported by a sliding contact, the method comprising the following steps: controlling (401) the application of a continuous electrical signal onto one of the elements of the sliding contact, receiving (402) a plurality of values (V(n)) of electrical signals measured on the other of the elements of the sliding contact, estimating (408) from said plurality of measured values, a variance parameter value, comparing (409) the variance parameter value with a threshold (THR) and, on the basis of the result of the comparison, generating a signal (CHANNEL_OK, CHANNEL_NOK) representative of the quality of the communication channel.

Abstract: The invention relates to a guidance device (10) of a suction system, said suction system being designed to suck up the dust generated by a brush (1) rubbing against a rotary element (2) in a rotary electrical machine, the guidance device (10) being designed in such a way as to concentrate a stream of air (F) generated by the suction system, near the end of the brush that is in contact with the rotary element (2). The guidance device defines at least one suction chamber (12) shaped so that it opens towards the rotary element, said at least one chamber having walls extending in a longitudinal direction so that said assembly is shaped so as to surround part of a brush near said end. The invention also relates to a suction system comprising such a guidance device.

Abstract: A brush intended for ensuring electrical contact between a fixed part and a moving part, said brush comprising a layer composed chiefly of carbon, silver, and of another metal different from silver, for example copper.

Abstract: A medium for a rolling stock electric current collection strip is provided. The medium is suitable for holding said strip and transmitting the current passing through the strip to the rolling stock. The medium includes a base and at least two walls forming a space suitable for at least partially accommodating the strip. The medium includes at least one elastic means suitable for clamping the strip against the base.

Abstract: The invention relates to a guidance device (10) of a suction system, said suction system being designed to suck up the dust generated by a brush (1) rubbing against a rotary element (2) in a rotary electrical machine, the guidance device (10) being designed in such a way as to concentrate a stream of air (F) generated by the suction system, near the end of the brush that is in contact with the rotary element (2). The guidance device defines at least one suction chamber (12) shaped so that it opens towards the rotary element, said at least one chamber having walls extending in a longitudinal direction so that said assembly is shaped so as to surround part of a brush near said end. The invention also relates to a suction system comprising such a guidance device.

Abstract: The invention relates to a medium (10) for a rolling stock (1) electric current collection strip (20), said medium (10) being suitable for holding said strip (20) and transmitting the current passing through the strip to the rolling stock (1), said medium (10) including a base (11) and at least two walls (12, 13) forming a space suitable for partially accommodating the strip (20), characterised in that the medium (10) includes at least one elastic means (40, 40?) suitable for clamping said strip (20) against said base (11).