Cedrat Technologies, innovation in mechatronicsCedrat Technologies, innovation in mechatronics

Cedrat Technologies, innovation in mechatronics

ELT M5 Mirror

Piezo actuators for telescope active optics

Piezo actuators are commonly used within Fast Steering Mirrors (FSM) for active stabilization, pointing and tracking functions. Such compact mechanisms are requested for Free-Space Optics and Deep Space Optical Communication since they are embedded and offer fast (up to 1kHz) and precise (µRad) tip tilt motion (up to +/-2°). The use of large amplified actuator within mirror telescope is new and become relevant since it displays enough power, reliability and do not fall apart when a failure occurs: steady state design with high stiffness 64N/µm. The purpose of this paper is to present the development and the qualification of the world largest Amplified Piezo Actuator ever integrated in a telescope tip-tilt mirror of more than 2 meters diameter.


ECS based micro switch sensor

Cost efficient space micro-switch based on Contactless Eddy Current Sensor

Micro-switches are frequently used in Space mechanisms to provide telemetry or to provide positive indication of the achievement of a desired position or function such as open, close, ready-to-latch, latched, end of travel, reference position, and for different mechanism applications. Current switches that rely on electro-mechanical technology are not very reliable and are sensitive to mounting orientation, to thermal gradients, and have a limited number of operational cycles, which is a problem for long life application, launch vibrations and shocks loads.



P-FSM150S and M-FSM45 For large scale free space optical communication

In this publication CEDRAT TECHNOLOGIES (CTEC) presents the design and test results of the P-FSM150S Pointing Ahead Mechanism (PAM) and M-FSM45 Fast Steering Mirror (FSM) Engineering Models, developed under ARTES project TELCO-B for future FSO constellations. The specific cost-efficient hardware design is presented, dedicated to very large quantities to be manufactured, together with the performance test results over a preliminary batch of EM’s production.



P-FSM150S Fast Steering Mirror for Optical Space Constellations

New space giant constellations based on Free-Space Optical Communication (FSO) are a new challenge from many perspectives. Considering the mandatory cost efficiency, with repeatability of performances, and reliability with no defect at customer integration, requires an upheaval in space production and acceptance test methods, when the quantities are beyond several thousands of units. Starting from the former PYSCHE PAM30 flight project heritage for Deep Space Optical Communication (DSOC), CEDRAT TECHNOLOGIES (CTEC) presents the new design and test results of the P-FSM150S Fast Steering Mirror (FSM) Engineering Models, developed under ARTES project TELCO-B for future FSO constellations.


Synthetic Jet Actuator

Improvement of Synthetic Jet Actuator Technology for High Efficiency

SYNJET3C is a CleansKy2 development project aiming at improving the efficiency of Synthetic Jet Actuators (SJA), with a consortium composed of major European actors to this technology which are ONERA, FRAUNHOFER, TRISITEC, and CEDRAT TECHNOLOGIES (CTEC).


PSYCHE PAM30 flight model

Fast and fine Steering Mirrors based on piezoelectric & magnetic actuator technologies for Air and Space

This review presents CEDRAT TECHNOLOGIES (CTEC) solutions developed for more than 20 years for Fast & fine Steering Mirrors (FSM) as required in air, space, defence & other embedded or demanding applications: Typical appli-cations are for example Lidar, free space optical communication (FSO) and Laser interferometry.


Contactless Position sensors for space mechanisms based on eddy current sensing

For more than 20 years, CTEC has been involved in various space missions, delivering products designed for severe environment conditions (vibrations, shocks, vacuum, humidity, wide thermal range including cryogenic). Eddy current sensor (ECS) technology, using printed circuit board (PCB) for printed coils, provides both a good resolution/accuracy and a good robustness against temperature variations.These sensors are available commercially off the shelf (COTS).