Space
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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.
Micro stage XY25XS
19 June 2023
The XY25XS stage is an original micro positioning mechanism developed, built and marketed by CEDRAT TECHNOLOGIES. This mechanism relieds on the Amplified Piezo Actuators (APA) technology patented by CTEC
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.
Nanometric linear piezo-actuator with integrated Strain Gages for high stability positioning
19 June 2023
Many applications require a mechanism capable of nanometric resolution position tuning, and with the ability to maintain perfectly this position for a long time (more than several days). For those applications, piezo-actuators are a perfect fit since they easily provide nanometric resolution. However, they require the use of a position sensor to be able to maintain stable position over time. Until now, the long-term stability of strain gages (SG) for position measurement was questionable. Using its extensive know-how of strain gages integration and new instrumentation equipment, Cedrat Technologies has managed to demonstrate the ability of a piezo-mechanism with integrated strain gages sensors to achieve nanometric position stability. This technology opens new possibilities for industrial, aeronautical, and space applications.
Nanometric positioning with IASI-NG Beam Splitter Mechanism Actuator
19 June 2023
This paper presents a piezoelectric motor which provides linear motion and very high resolution (40 nm steps). First, the space application (IASI-NG instrument onboard METOP-SG satellite) and associated performance requirements are presented. The internal architecture of the motor and its main components are then explained. A first focus is done on the experimental verification of the threaded interface lifetime which is a key element of the mechanism. A second focus is on the nanometric position test bench. Achieved results are provided for resolution, motion quality and position stability. Finally, results from the
vibration test campaign are presented
Nanometric positioning with piezo actuator and high stability strain gauges
19 June 2023
Many applications require long-term position stability, which relates to the notion of absolute precision over time. Until now, the long-term stability of strain gages (SG) for position measurement was questionable. Using its extensive know-how of strain gages integration and new instrumentation equipment, Cedrat Technologies has managed to demonstrate nanometric position stability of a closed-loop piezo-mechanism with integrated strain gages sensors. This technology opens a wide range of new possibilities for industrial, aeronautical, and space applications.
