This study aims to develop a X-Y dual-axial intelligent servo pneumatic-piezoelectric hybrid actuator for position control with high response, large stroke (250 mm, 200 mm) and nanometer accuracy (20 nm). In each axis, the rodless pneumatic actuator serves to position in coarse stroke and the piezoelectric actuator compensates in fine stroke. Thus, the overall control systems of the single axis...

A high-sensitivity mechano-luminescent sensor was fabricated on the basis of piezoelectric/electroluminescent composites. The working principle of this mechano-luminescent sensor was elucidated by analyzing the relationship between the piezoelectric-induced charges and the electroluminescent effects. When a stress is applied on the piezoelectric layer, electrical charges will be induced at both...

Many forms of scanning probe microscopy require a piezoelectric actuator to vary the probe-sample distance. Examples include constant-force atomic force microscopy and constant-current scanning tunneling microscopy. In such modes, the topography of the sample is reconstructed from the voltage applied to the vertical piezoelectric actuator. However, piezoelectric actuators exhibit significant hy...

This paper compares two novel field-bus protocols for lowcost single-chip smart sensor and actuator nodes, LIN and TTP/A. Both protocols are central-master UART protocols, where the master with its precise oscillator establishes the stable time-base required by the slaves to synchronize their imprecise on-chip oscillators. While LIN provides the basic services needed for real-time communication...

Using strain devices as sensors, and using piezoelectric devices as actuators, the experimental research on the vibration control of large flexible space structures is presented in this paper. The control theory used in this experiment will be introduced. The working principles of the strain devices and the piezoelectric devices will be explained in detail in this paper. A satellite panel syste...

The proportional and derivative nonlinear potential feedback controls via piezoelectric sensor and actuator layers are used. A simple and consistent model combining the geometrical nonlinear affects and the feedback control of a piezoelectric/elastic/piezoelectric sandwich beams is derived. A mathematical methodology based on the multiple scales method for nonlinear vibration control of seconda...

In this work, we design and simulate a valve less, diaphragm-based, piezoelectric micro pump. The piezoelectric actuator is a PZT-5H piezo-disk, the diaphragm is a borosilicate glass plate. All the simulations were made using COMSOL Multiphysics software. First, the piezoelectric actuator and membrane thicknesses were chosen by means of a stationary simulation, using the piezoelectric devices m...

The customer domain of the smart grid naturally blends with smart home and smart building systems, but typical proposed approaches are “distributor-centric” rather than “customer-centric,” undermining user acceptance, and are often poorly scalable. To solve this problem, we propose a detailed architecture and an implementation of a “last-meter” smart grid—the portion of the smart grid on custom...

The Inertially Stabilized Rifle is a new stabilized rifle system that can eliminate the disturbances induced by the shooter. Recurve actuator is used in this system to provide the precise movement of the rifle barrel. In such a portable device, only low voltage electrical sources are available yet the piezoelectric actuator needs high voltage to drive the actuator. The actuators consume little ...

The influence of piezoelectric actuator design on a two-port piezoelectrically transduced micro-electro-mechanical (MEMS) ring resonator frequency tuning performance has been investigated. A cubic silicon carbide (3C-SiC) ring resonator was fabricated with a lead–zirconium–titanate (PZT) piezoelectric actuator and sensor integrated on the surface of the ring. Measurements of the transmission fr...