Abstract: The present invention relates to a device and methods for the analysis of volatile organic compounds and particularly, but not exclusively, a device comprising a probe for collection of volatile organic compounds coupled with a spectrometer.

Abstract: A valve including a pressurised fluid inlet and a fluid outlet, and including a fixed plate with first channels, a flap with second channels, the flap movable between: an opening position where the flap is spaced apart from the plate, the first channels and the second channels being in fluidic communication and allowing the flow of the fluid, a closing position where the flap is in contact with the plate, the first channels and the second channels not being in fluidic communication and blocking the flow of the fluid, a piezoelectric actuator acting upon the flap to move it between the closing position and opening position, the inlet is arranged in such a way that the pressurised fluid exerts a force on an active face of the flap stressing said flap to the closing position. The embodiments also relate to a system for generating electricity.

Abstract: A defrosting (or de-icing) system mountable on a surface of a mechanical part to be de-iced, comprising including a piezoelectric actuator, a fastening device to secure the actuator to the surface, and at least one control unit to activate the actuator to excite the part for defrosting. The actuator features a stacked structure of prestressed piezoelectric elements along its longitudinal axis. The fastening device secures the actuator parallel to the surface and includes fastening elements at each end, enabling excitation of the part in extension and bending modes.

Abstract: A valve including a pressurised fluid inlet and a fluid outlet, and including a fixed plate with first channels, a flap with second channels, the flap movable between: an opening position where the flap is spaced apart from the plate, the first channels and the second channels being in fluidic communication and allowing the flow of the fluid, a closing position where the flap is in contact with the plate, the first channels and the second channels not being in fluidic communication and blocking the flow of the fluid, a piezoelectric actuator acting upon the flap to move it between the closing position and opening position, the inlet is arranged in such a way that the pressurised fluid exerts a force on an active face of the flap stressing said flap to the closing position. The embodiments also relate to a system for generating electricity.