Linear actuators
Categories
Mechanically amplified piezo tunable3D microwave superconducting
6 January 2016
In the context of hybrid quantum systems, there is a demand for superconducting tunable devices able to operate in the single-photon regime. In this work, we developed a 3D microwave reentrant cavity with such characteristics ready to provide a very fine-tuning of a high-Q resonant mode over a large dynamic range. This system has an electronic tuning mechanism based on a mechanically amplified piezoelectric actuator, which can set the cavity resonance with a large dynamic range of order 1 GHz at 10 mK. At elevated microwave power, nonlinear thermal effects were observed to destroy the superconductivity of the cavity due to the large electric fields generated in the small gap of the reentrant cavity.
Mechatronic piezo mechanisms for active vibration control
8 September 2022
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…
MICA actuator: highly dynamic controllable magnetic actuators
19 June 2023
Moving Iron Controllable Actuator is a concept of linear magnetic actuator that is especially designed to respond to the need of highly dynamic controllable actuators. The article presents the specificity of the actuator compared to more classical magnetic actuator concepts. It points out the interest of its properties and describes technological issues it implies. A MICA prototype has been built and its main performances are given: 800N, 20A, with a size 160*200*150. The controllability of the actuator has been demonstrated by simulation using force characteristic of MICA. Finally, the prototype will be declined in a full range of magnetic actuators as products of Cedrat Technologies.
MICA20CS Proof Mass Actuator
8 September 2022
The MICA linear actuator technology (Moving Iron Controllable Actuator) is being continuously improved at CEDRAT TECHNOLOGIES (CTEC) for applications needing high controllable stroke, force, and power. The MICA20CS Proof Mas Actuator is a new actuator model, which is now completing the CTEC Proof Mass Actuator family together with the MICA300CM.
Micro piezo actuators
7 January 2008
Obtaining an integratable, compatible, low-cost mechanical energy source delivering a sufficient quantity of easilyaccessible energy within a miniaturised system has been the challenge of recent decades. Urgent demand for and interest in such systems will continue to increase with the development of portable microsystems.
Microcontrollers for piezo-electric actuator
7 January 2008
CEDRAT TECHNOLOGIES is now promoting microcontrollerbased solutions for controlling piezo-actuators. Microcontrollers provide powerful digital signal processing capability with reduced size and cost, allowing embedded applications to be targeted. The new UC45 board uses a microcontroller to provide fully-digital control of piezo-actuators at 10KHz. It features ADC and DAC with 16-bit resolution, for applications where high resolution is required, such as ultraprecise positioning.
