Cedrat Technologies, innovation in mechatronicsCedrat Technologies, innovation in mechatronics

Cedrat Technologies, innovation in mechatronics

Device & Systems

PPA Bar

Mechatronic piezo mechanisms for active vibration control

The current trend in the market to solve long boring bar related chatter problems are passive dampers integrated in the boring bar, which has derived in patents and commercial products; This solution, however, is not feasible in very slender bars or trepanning operations, due to small space available in the tool. Active damping has been tested and indus-trialised in different applications, including machine tool structures, but never in internal turning tools. The application of active damping on boring bars has been proposed in several researches...

09.08.2022

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).

08.08.2022

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.

08.08.2022

Piezo motor for ITER

New piezo motor for thermal vacuum environments

CTEC and F4E have improved and pre-qualified a MSPA piezo motor, based on a secret material and able to operate in vacuum,, non-magnetic or high temperature and sustain radiations. Its high reliability, precision and operating lifetime makes this new piezo motor perfectly suitable for space, healthcare and nuclear applications.

25.04.2021

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).

17.03.2021

MFSM

Magnetically actuated fast steering mirrors

Free-Space Optics (FSO) for optical communication request new compact low-power high-stroke high-bandwidth Fast Steering Mirrors (FSM). To address this need, CEDRAT TECHNOLOGIES has developed a Magnetically-actuated Fast Steering Mirror called M-FSM, taking heritage of its MICA™ actuators. This FSM offers Rx Ry strokes larger than +/- 2° with a 250Hz bandwidth when tilting a 31mm diam mirror. Requested power is minimized leading to low heating. Vibration tests have been performed to define first limits and conditions for the M-FSM to bear external vibrations. Large bandwidth closed loop control is achieved using integrated eddy current sensor and a state feedback-based controller.

25.02.2021

FSPA35XS and Driving electronic

FSPA and BSMA Nanometric positioning actuators for ground and space applications

Many applications and more specifically space projects show need for a stable sub-micrometre positioning actuator. In order to meet this need, Cedrat Technologies has designed the new FSPA brand. This linear stepping actuator offers sub-micrometric positioning resolution along 5mm stroke combined with high actuation force (>100N) and the ability to hold its position without power. The IASI-NG instrument is one of the key payload on-board METOP-SG which is a new meteorological satellite for Europe. The instrument is based on a Mertz interferometer and requires a very precise positioning of an optical blade used to separate the interferometer’s branches. A dedicated version of the FSPA, the Beam Splitter Mechanisms Actuator (BSMA) is then developed to achieve this nanometric positioning which is a key parameter for the overall instrument performance. This paper firsts present the internals of both FSPA and BSMA actuators. Major design differences and their respective impact on the resulting performances are detailed. Results from the acceptance and qualification test campaigns are also presented.

25.02.2021