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‘MICA actuator: highly dynamic controllable magnetic actuator’ - .PDF file.

This white paper from Cedrat Technologies deals with design, prototyping and evaluation of a moving iron linear actuator (MICA). First, the actuator concept originality is presented. Then, the importance of dynamic and controllability aspects is discussed for actuators. Achieving such characteristics leads to several issues — these are explained. Then the principle of MICA is presented and main characteristics of the newly built prototype of MICA V1 are discussed. This prototype is the first one of a full MICA product range that can be customised according to the application. The main option for MICA design is the degree of controllability, which is affected by magnetic design and force characteristic. The latter can be optimised to get very constant force versus position characteristic. Finally, a test of controllability is presented on MICA V1 using a PID position control loop. The paper ends with identification of targeted applications for this kind of magnetic linear actuator.

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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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