Iee International Electronics and Engineering S.a.

Yves Decoster

Werner Bieck

Laurent Lamesch

Pierre Orlewski

Alain Schumacher

Laurent Federspiel

Patrick Di Mario Cola

Driss Chabach

Thomas Schleeh

Roberto Orsello

Cécile Jouanique-Dubuis

Christophe Keiser

Aloyse Kirsch

Dries Chabach

Robert Ollett

A gas detector () for remote gas detection in a target region () comprises a light source () for emitting a light beam () into the target region and a light sensor () for sensing light returning therefrom. The light beam is wavelength-modulated around an absorption wavelength of the gas. A controller () is operatively connected to the light sensor for detecting a presence of the gas on a path of the light beam based on returning light sensed by the light sensor. An indicator () that is operatively connected to the controller indicates the presence of the gas. A scanning device () is arranged with respect to the light source so as to scan the light beam through the target region, and with respect to the light sensor so that the light sensor receives the returning light via the scanning device. The indicator cooperates with the scanning device to indicate a position of the gas in the target region.

Gas detector

An occupant classification system for a vehicle comprises a radio-frequency (RF) transmitter unit, which includes a transmission RF antenna and an RF generator operatively connected to the transmission RF antenna. The RF generator and the transmission RF antenna are configured for generating radio waves at a certain fixed RF frequency in the Very High Frequency (VHF) range or the Ultra High Frequency (UHF) range. During operation of the RF transmitter unit, the generated radio waves propagate from the transmission RF antenna. The occupant classification system further comprises an RF detector for detecting, at the fixed RF frequency, an influence of an occupant on the radio waves propagating from the transmission RF antenna.

Occupant classification system

A seat sensor system including at least one seat sensor associated to a seat for sensing a status related to a seat occupancy and for generating an output signal indicative of the status and a control unit for communicating with the seat sensor. At least one transmitter for transmitting a data signal indicative of the output signal is associated with the seat and coupled to the seat sensor; and at least one receiver is coupled to the control unit for wirelessly receiving the data signal from the transmitter.

Seat sensor system

A foil-type pressure sensor includes a first carrier foil and a second carrier foil arranged at a certain distance from each other by means of a spacer, the spacer comprising at least one recess defining an active area of the pressure sensor. At least two electrodes are arranged in the active area of the pressure sensor between said first and second carrier foils in such a way that, in response to a pressure acting on the active area of the pressure sensor, the first and second carrier foils are pressed together against the reaction force of the elastic carrier foils and an electrical contact is established between the at least two electrodes. According to the invention, at least one of the carrier foils includes a multi-layered configuration with at least two layers of different materials.

Foil-type switching element with multi-layered carrier foil

A seat occupancy sensor comprises a pressure detection device associated with a surface of a seat and a control unit for communicating with the pressure detection device. According to the invention the pressure detection device comprises a surface acoustic wave device including at least one surface acoustic wave resonator and an antenna and the control unit comprises an RF antenna for remotely communicating with said surface acoustic wave device. In a first embodiment, the surface acoustic wave is adapted for detecting the pressure inside a sealed chamber. In a second embodiment, a pressure sensitive switching device is connected to the surface acoustic wave device so as to activate the surface acoustic wave device when the pressure sensitive switching device is triggered.

Seat occupancy detector

A foil-type switching element comprises a first carrier foil and a second carrier foil arranged at a certain distance from each other by means of a spacer. The spacercomprises at least one recessdefining an active area of the switching element. At least two electrodes and a layer of pressure sensitive material are arranged within the active area of the switching element between the first and second carrier foils in such a way that, in response to a pressure acting on the active area of the switching element, the first and second carrier foils are pressed together against the reaction force of the elastic carrier foils and an electrical contact is established between the at least two electrodes via the pressure sensitive material. The active area comprises an inner regionand a number of outer regions, the inner region having a generally convex shape and the outer regions extending outwardly from said inner region.

Foil-type switching element with improved spacer design

A foil-type switching element comprises a first carrier foil having a first electrode arrangement applied thereon and a second carrier foil having a second electrode arrangement applied thereon, said first and second carrier foils being arranged at a certain distance by means of a spacer in such a way that said first and second electrodes face each other in an active area of said switching element. At least said second electrode arrangement comprises a resistive layer which faces said first electrode arrangement. In response to a pressure acting on said switching element said first and second electrode arrangements are pressed together, the shape and/or the size of a mechanical contact surface between said first and second electrode arrangements being given by a mechanical response function depending on the amount of pressure applied. According to the invention, said resistive layer has a shape such that an electrical response function of said sensor is decoupled from said mechanical response function.

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Ethe, Belgium

Yves Decoster