Transfert de technologie

Electro Active Actuators and Sensors

Applications

Composite frame for amplified elliptic actuator (Cedrat Technologies)
  Laminar actuator developed by LMP  

>Aeronautics & Space

• Morphing of aerodynamic profiles.
• Dampers.
• Active control of the aerodynamic boundary layer.
• Noise reduction by active helicopter rotor blades.
• Smart wings for UAVs.

>  Optics

• Adaptive optics and interferometers (Very Large Telescope, Chile ).

> Defence & Security

• Safety mechanisms and sensors.

 >  Energy

• Energy storage.

Keywords

• Amplified actuators, PZT stacks, PZT ribbons, active composites / materials, light or thin actuators.

Advantages

• Combination of piezoelectric (electrical field action) and composite material (mechanical couplings and lightness) properties.
• Large stroke and high forces – compact, light and powerful actuators with a high bandwidth.
• Laminar actuators - easily integrated in conventional composite layers.
• Possibility to conceive 3D small actuators and sensors with complex geometries from flat initial PZT layers before forming and sintering operations.

Testing

• Electro mechanical static and dynamic tests with or without external loads modelling with Atila Finite Element code available by ISEN.

Expertise

• Over 5 years of experience in collaboration with Cedrat Technologies at Meylan ( Grenoble ), LMP at Maubeuge and ISEN in Lille:
  • Technology at present mastered to produce a lot of types of actuators and even sensors.
  • The development of oriented crystals products with larger capabilities is in progress
  • Intelligent textile incorporating such material are foreseen for energy individual human production and storage.

Customers

• Cedrat technologies, Artois composites, Eurocopter, Cnes…

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