Piezo actuators
Categories
Moving Iron Controllable Actuator : Performances in close loop control
19 June 2023
Moving iron controllable actuator (MICA) is a highly controllable Actuator. It has a robust mobile part with elastic guiding for a long life. The article presents the performances of the MICA when it is driven in a closed loop and shows impressive results achieved by IDEKO on a SOLARUCE milling machine.
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.
NASA ARC Novel sample handling for XRD analysis
19 June 2023
Sample preparation and sample handling are among the most critical operations associated with X-ray diffraction (XRD) analysis. These operations require attention in a laboratory environment, but they become a major constraint in the deployment of XRD instruments for robotic planetary exploration. We are developing a novel sample handling system that dramatically relaxes the constraints on sample preparation by allowing characterization of coarsegrained material that would normally be impossible to analyze with conventional powder-XRD techniques.
New actuators for aircraft and space applications
7 January 2008
Actuators are key elements of air- and spacecrafts. In the recent years the concept of the more-electric aircraft pushed the development of electrical actuation systems to substitute hitherto used hydraulic actuators in a broad range of applications such as flight control, landing gear and brake actuation.
New actuators for aircraft, space and military applications
19 June 2023
Actuation is used in all vehicles (aircraft, spacecraft, ground vehicles, etc) to control the position and/or attitude of the vehicle, and also to deploy or retract equipment, particularly for embedded optic instruments (cameras, telescopes). As such, the actuation is a safety critical system, particularly when humans could be catastrophically affected by failures within the system. Applications for actuation are flight controls, landing gear, rotors, suspension, antennae steering, valves, scanning, positioning using hydraulic, electromechanical, magnetic and piezo actuators. In aircraft there is a common goal to reduce the number of hydraulic actuators in vehicles and eventually to replace them completely by electric actuators.
New actuators for space and aircraft applications
19 June 2023
Novel actuation systems are driver of product innovation in aerospace industry. In aircraft industry EHA technology has been recently introduced illustrating the stream of innovation directed on improving performance, reliability as well as economy. On the far side there is the radical concept of a morphing wing which offers optimizing the aerodynamics of an aircraft considerably by shape control. Rotor Active Control utilizing piezo actuation has been proofed to be very successful for vibration and noise reduction in helicopter flight test inspiring confidence in smart structure technology.