Schneider Electric Industries Sas

Schneider Electric Sa

Schneider Electric Industries Sa

Vincent Minier

Jean-Louis Lovato

Michel Raymond Barrault

Roland Moussanet

Dominique Persegol

Eric Bettega

Christian Petit

Virginie Collomb

Jean-Jacques Favre

Michel Trouillon

Alain Hermil-Boudin

Pierre Amblard

The voltage presence indication device comprises a collector electrode () designed to have at least one capacitive connection () with an electrical ground () or a capacitive connection () with an electrical conductor () to be monitored, and display means () connected to said collector electrode () to indicate the presence of an electrical voltage in said electrical conductor to be monitored. The display means comprise at least one multilayer device (). The multilayer device comprises a light-emitting layer () arranged between a first insulating layer () and a second insulating layer (), a first conducting layer () arranged on the first insulating layer () and connected to said conducting electrode (), and a second conducting layer () arranged on the second insulating layer (). An electrical apparatus comprises such a device.

Voltage presence indication device and electrical apparatus comprising such an indicator

The lighting device comprises at least one emitter () of white light () produced by an initial radiation () and a secondary radiation (), an electronic control circuit () to control the lighting, and a communication circuit (). The electronic circuit () controls power supply of the light emitter to emit a modulating light signal () of said initial radiation according to a communication signal (). Said modulating light signal is designed to be received by a light signal receiver () sensitive to the initial radiation (). A lighting installation comprises a power supply line, at least one lighting device () and at least one electrical apparatus () connected to a receiver () comprising a sensor () sensitive to the initial radiation ().

Light-emitting diode lighting device comprising a communication device and installation comprising one such device

The optic coupling device comprises optic emitting elements arranged in a coating material to emit a first light signal to an optic duct, and optic receiving elements separated from the emitting elements to receive a second light signal from the optic device. To improve the efficiency and simplify manufacturing, the optic receiving elements receive the second light signal through the coating material. An optic probe comprises the optic coupling device, an optic sensor, and an optic duct joining the coupling device and the sensor to transmit a first light signal to the sensor and to receive a second light signal to the coupling device. The communication device comprises two stations connected by an optic duct and comprising coupling devices.

Optic coupling device, optic sensor and communication device comprising such a coupling device

The device enables bi-directional optical communication between a master module and slave modules by means of an optical rod () made of transparent material. The master module is axially coupled to the rod. The modules are arranged laterally along a useful part of the rod bounded by a lateral reflector located opposite the slave modules. The lateral reflector can be formed by a plurality of adjacent notches () formed at the surface of the rod and constituting a continuous reflecting zone in the form of serrated teeth, and/or by a narrow reflecting strip (). The slave modules can be positioned anywhere along the useful part of the rod and their lateral location is not critical, a lateral coupling zone extending over at least 1 cm outside the rod. Such a device can be advantageously used in an electrical panel.

Device for optical communication between electronic modules

A light beam output from a magneto-optical current transducer using the Faraday effect is divided into two output light beams. A first output light beam is applied, via an output polarizer, to a first optical input of a processing unit. A second output light beam is applied to a second optical input of the processing unit. The processing unit converts the two beams into electrical signals U and U , then computes a first quantity R&equals;U /U , determines the AC component (R ) and the DC component (R ) of the first quantity and deduces therefrom a second quantity S&equals;R /R enabling the electric current to be measured to be determined.

Device for measuring an electric current by Faraday effect

The probe comprises at least one optic fiber and an electronic circuit comprising a securing device for securing the optic fiber in optic connection with signal conversion means. The electronic circuit comprises a removable electrical connector connected to the signal conversion means such as a light-emitting diode and/or photo-detector to supply or receive electronic signals used by a processing circuit. A measuring device comprises at least one optic fiber probe connected by means of the removable connector to a processing circuit. Application in particular to temperature measurement probes and devices which comprise optic fibers and to installations comprising electrical conductors.

Growing community of inventors

Claix, France

Vincent Minier