Piezo mechanisms are based on at least one piezo actuator and on additional functions:
Most of CEDRAT TECHNOLOGIES' piezoelectric mechanisms are based on standard or customised Amplified Piezoelectric Actuators (APA®) or Parallel Pre-stress Actuators (PPAs). They allow the realisation of X and XY stages, tip-tilts, hollow actuators, shutters and 5 or 6 degrees of freedom precision mechanisms.
CEDRAT TECHNOLOGIES' piezo mechanisms benefit from a large aerospace heritage, which itself results from the design choices towards a high reliability and a high energy density: CEDRAT TECHNOLOGIES' piezoelectric actuators are highly pre-stressed and do not include weak points (as hertzian pivot or flexural hinges). This provides several advantages : a very good ability to withstand external loads (as external vibrations), high dynamics (capability in a large bandwidth from Dc to above resonance) and a long life time.
CEDRAT TECHNOLOGIES' monolithic (solid state) piezo mechanisms combine one or several actuators and guidance in one single part, as in the XY stages. This provides additional benefits in terms of compactness, cost and reliability.
Fast steering mirror FSM for SiC large aperture mirror with its controller rack.
High power laser, line of sight stabilisation for atmospheric disturbance compensation.
In the context of CNES future observation satellite and DGA funding, and in collaboration with CNES and SODERN, CTEC designed a large space mechanism.
The MEFISTO mechanism is dedicated to fillet compensation for space telescopes.
Fast steering mirror FSM with 120 mm diameter SiC mirror.
Space, point-ahead mechanism for infrared telescope.
Thanks to the heritage from the PHARAO DTT, CTEC has developed the ATLID Beam Steering Mechanism (BSM).
Fast steering mirror FSM for 80 mm diameter mirror.
High power laser, atmospheric disturbance compensation.
Fast steering mirror FSM for 50 mm diameter mirror with CCBu20 controller box.
Line of sight stabilisation.
Compact fast steering mirror FSM with its controller box for embedded electro optic systems.
Image stabilisation and micro-scan combined in a single unit (5th and 6th axis of gyro stabilised platform).
For the ESA EChO mission, the use of a fine steering tip and tilt mechanism ensures the stability of the line of sight for a telescope operating in cryogenic conditions.
Fast steering mirror FSM for 50 mm diameter mirror with its controller rack.
High power Laser, atmospheric disturbance compensation.
DTT35XS-space is a very light piezoelectric tip-tilt mechanism designed according to ECSS space rules for Pharao mission and delivered to EADS.
Instrumentation, Optics etc.
In astronomical instrumentation, the trend is currently to build up large telescopes. Such structures enable to gather more light and hence, to see our universe brighter. Numerous projects like VLT, ELT,TMT … are well known cases showing the tendency.
Space mechanism, instrumentation etc.
The fast piezoelectric shutter FPS is made to shutting off X-Ray beams. It is based on compact dynamic and precise APA® piezo actuators. Smaller or larger aperture (>1mm) shutters are proposed.
Crystallography, Optical shutter, beam shutter etc.
The XY200M stage has been designed thanks to CNES complying with ECSS space rules. It is a monolythic piezo mechanism using the qualified APA® technology.
Aerospace, Scanning, High positioning accuracy etc.
OPDA is an outstanding example of accurate mechanisms for instrumentation in a harsh environment. This X stage has been delivered to Oerlikon Contraves for LISA mission.
Optical Delay Line, Space mechanism, Intrumentation etc.