Piezo actuators
Categories
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.
Micromoteur et micro-actionneurs piezoélectriques de puissances
1 January 2002
The applications of piezoelectric actuators are spreading in various fields such as precise micro-positioning, shape control or vibration generation, control or damping.
Miniature piezo mechanisms for optical and space applications
19 June 2023
Piezoelectric actuators find their first applications in active space optics. The purpose of this paper is to describe the state of the art and some applications. Piezo actuators display attractive features for space applications, such as precise positioning, unlubricated, non magnetic and compact features, and low power consumption. However, piezo mechanisms cannot be considered separately from their driving and control electronic.
Modular Test bed for Performance Assessment of Piezoelectric Stick-Slip Actuators
19 June 2023
Stepping piezoelectric actuators based on the stick-slip effect inherently make use of a friction contact between stator and rotor. This contact defines not only the actuator’s performance but also is prone to wear and tear. For broad use, the actuator has to be able to perform around 1 million strokes. To assess the actuator’s performance in terms of force, speed, mechanical output, electrical input, and long-term stability under different load- and environmental conditions, as well as different friction partners, a dedicated test-bed for a LSPA30µXS motor by Cedrat Technologies has been set up.
Module Stepping Piezoelectric Actuator: A versatil way of micro-positioning actuation
10 January 2016
Stepping Piezoelectric Actuators (SPA’s) – based on the Piezoelectric Friction-Inertial Actuation (PFIA) principle – are made from Cedrat Technologies Amplified Piezoelectric Actuators (APA). They use the stickslip principle to couple high resolution positioning (cm) and low volume (10cm), allowing easier multi-DoF mechanism developments and miniaturization possibilities – is presented. Results obtained on three innovative engineering models – linear long stroke, rotary and three-DoF actuators – are presented, giving the reader actual benefits of this concept and allow addressing new applications such as consumer goods and medical devices.