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‘Actuators for space applications: state of the art and new technologies’ - .PDF file.

Actuators in space are broadly used to operate satellites’ platform and payload devices. Despite their common utilisation, actuators still represent critical subsystems as their failure might often lead to severe effects on the spacecraft operations. Environmental conditions to which actuators are exposed in space are generally not favourable: operating temperature ranges and deep vacuum are certainly the most critical ones. On the other end, performance requirements are becoming more and more challenging. In this context, consolidated technologies, such as electric motors, are undergoing further design optimisations and progressing in terms of performance and reliability. Furthermore, new material and smart devices are progressively considered to best fulfil the wide range of applications and requirements of future spacecraft. This paper from Cedrat Technologies provides an overview of the state of the art of actuator technologies currently used in space and highlights new trends and challenges that are characterising the next generation of actuators.

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GAIA sunshield deployment test at ESA
GAIA sunshield deployment test at ESA

Cedrat Technologies S.A

CEDRAT TECHNOLOGIES offers off the shelf mechatronics products including piezoelectric and magnetic actuators, motors, mechanisms, transducers and sensors with corresponding drivers and controllers. These mechatronics products are used for scientific and industrial applications requiring features such as: micro & nano positioning, generation of vibrations, micro-scanning, fast & precise motion control, active control of vibration, energy harvesting…

CEDRAT TECHNOLOGIES offers off the shelf mechatronics products including piezoelectric and magnetic actuators, motors, mechanisms, transducers and sensors with corresponding drivers and controllers. These mechatronics products are used for scientific and industrial applications requiring features such as: micro & nano positioning, generation of vibrations, micro-scanning, fast & precise motion control, active control of vibration, energy harvesting…

CEDRAT TECHNOLOGIES is recognised as a highly innovative company and has received several awards. The products, projects and training courses offered by the company focus on:
•Smart Actuators: Actuators & motors based on piezoelectric ceramics, electroactive polymers, ultrasonic effects, magnetostrictive alloys, magnetorheological fluids (MRF) & magnetic effects (moving coils, moving iron …) ; Applications : micro nano positioning, damping, vibration generation, acoustic transducers, micro actuators…

•Smart Sensors: Magnetic, magnetoresistive, magnetostrictive, piezoelectric sensors, transformers or generators; Force, Torque, Position, Speed, Acceleration sensors, including contactless sensors & resonant sensors.

•Mechatronic systems: Multi-degree-of-freedom mechanisms (XY stages, tilts); motion control; Active damping of Vibrations; Vibration (Ultrasonic or sonic) assistance to process; Proportional valves; Fast injectors.

•Detection systems: Health monitoring; NDT using magnetic or acoustic effects; Remote detection systems for position, force, torque remote measurements.

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