Results 191 to 200 of about 7,213 (259)

Supersampled Scanning Transmission X‐Ray Microscopy for High‐Resolution Vibration‐Independent Time‐Resolved Imaging

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ABSTRACT Scanning transmission x‐ray microscopy (STXM) is a nanoscale imaging technique that can utilize several powerful contrast mechanisms for the quantitative mapping of chemical and physical materials properties. Spatial resolutions down to 7 nm at the soft x‐ray energy range have been demonstrated.
Simone Finizio, Benjamin Watts, Benedikt Rösner, Tim A. Butcher, Sebastian Wintz, Markus Weigand, Jörg Raabe   +6 more
wiley   +1 more source

Material Extrusion‐Enabled Soft Multimodal Pressure Sensors With Fabrication‐Embedded Stretch‐Induced Strain Insensitivity

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Material extrusion‐based additive manufacturing integrates mechanically anisotropic electrospun piezoelectric composite microfibers with stretchable silver electrodes into a three‐dimensional serpentine architecture to realize stretch‐induced strain‐insensitive pressure sensors, maintaining a stable sensing performance under tensile strains up to 30 ...
Jinsheng Fan, Shujia Xu, Yi Yang, David Harmon, Yuelin Deng, Brittany Newell, Wenzhuo Wu, Robert A. Nawrocki   +7 more
wiley   +1 more source

Piezoelectric Thin-Film Actuator for Dynamic Tuning of Micro-Optical Cavities. [PDF]

Micromachines (Basel)
Tan D, Li P, Zhou X, Xiao Q, Wu C, Zhu Q, Lei M, Li T, Lu Q.   +8 more
europepmc   +1 more source

Low-Profile Piezoelectric Inertial Linear Actuator for High-Power Applications. [PDF]

Micromachines (Basel)
Mažeika D, Bareikis R, Čeponis A.
europepmc   +1 more source

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Analysis of Beams with Piezoelectric Actuators

Applied Mathematics and Mechanics, 2001
Based on the two-dimensional constitutive relationships of the piezoelectric material, an analytical solution for an intelligent beam excited by a pair of piezoelectric actuators is derived. With the solution the force and moment generated by two piezoelectric actuators and a pair of piezoelectric actuator/sensor are obtained.
Lin, Qirong, Liu, Zhengxing, Wang, Zongli   +2 more
openaire   +2 more sources

Piezoelectric Actuator Designs

2008
Piezoelectric actuators are getting immiscible parts of many important electromechanical and smart systems. Smart systems consist mainly of sensors, actuators, and signal processing units. Actuators are the responding units of many smart systems including those for active vibration and noise control, valve, shutter, focal lens, and many others ...
Dog?an A., Uzgur E.
openaire   +2 more sources

Piezoelectric Actuator Renaissance

Energy Harvesting and Systems, 2014
Abstract “Politico-engineering” in the twenty-first century is generating “Piezoelectric Actuator Renaissance” in the area of sustainability and crisis technologies in particular. This paper reviews the recent advances in materials, designing concepts, and new applications of piezoelectric actuators and describes the future ...
openaire   +1 more source

Load dynamics in piezoelectric actuation

2009 European Control Conference (ECC), 2009
High control performance is essential in many precision positioning applications, such as control of the vertical sample position in a atomic-force microscope (AFM). This paper investigates the impact of load flexibility on piezoelectrically actuated positioning systems in terms of control performance.
Jan Roelf van Hulzen, Georg Schitter, Paul M. J. Van den Hof, Jan van Eijk   +3 more
openaire   +1 more source

Piezoelectric Biomaterials for Sensors and Actuators

Advanced Materials, 2018
AbstractRecent advances in materials, manufacturing, biotechnology, and microelectromechanical systems (MEMS) have fostered many exciting biosensors and bioactuators that are based on biocompatible piezoelectric materials. These biodevices can be safely integrated with biological systems for applications such as sensing biological forces, stimulating ...
Meysam T. Chorsi, Eli J. Curry, Hamid T. Chorsi, Ritopa Das, Jeffrey Baroody, Prashant K. Purohit, Horea Ilies, Thanh D. Nguyen   +7 more
openaire   +2 more sources

On the Nonlinear Behavior of Piezoelectric Actuators

Journal of Vibration and Control, 2004
In this paper we present a theoretical and experimental study of the nonlinear behavior of piezoelectric actuators. The nonlinearities are introduced as quadratic terms in the piezoelectric constitutive relations. These relations are employed, together with supporting experimental results, to establish an engineering description of the nonlinearities ...
Arafa, M., Baz, A.
openaire   +1 more source