Results 61 to 70 of about 52,759 (294)
Sensors, 2019 Piezoelectric (PZT) ceramic elements are often subjected to complex loads during in- service lifetime in structural health monitoring (SHM) systems, and debonding of both excitation actuators and receiving sensors have a negative effect on the monitoring
Xuerong Liu +4 more
doaj +1 more source
Continuous time controller based on SMC and disturbance observer for piezoelectric actuators [PDF]
, 2007 – In this work, analog application for the Sliding Mode Control (SMC) to piezoelectric actuators (PEA) is presented. DSP application of the algorithm suffers from ADC and DAC conversions and mainly faces limitations in sampling time interval.
Sabanovic, Asif +2 more
core
Multiparameter actuation of a neutrally-stable shell: a flexible gear-less motor
, 2017 We have designed and tested experimentally a morphing structure consisting of a neutrally stable thin cylindrical shell driven by a multiparameter piezoelectric actuation.
Hamouche, Walid +3 more
core +3 more sources
Advanced Materials, EarlyView.This study demonstrates a self‐assembly process to generate free‐standing piezoelectric nanomembranes, forming ultracompact microtubular acoustic wave sensors and actuators. The miniaturized 3D piezoelectric platform reported in this work can be applied in telecommunication, energy harvesting, and acoustofluidics. Moreover, the 3D self‐assembly can add
Raphaël C. L‐M. Doineau +9 more
wiley +1 more source
Applications of piezoelectric-based sensors, actuators, and energy harvesters
Sensors and Actuators ReportsFrom the last few decades, piezoelectric materials have played an important role in the field of sensing and actuating. They have voltage-dependent actuation, which allows them to serve as energy harvesters and structural health monitoring of the system.
Mohammad Ali Mangi +9 more
doaj +1 more source
Intelligent Acousto‐Electrical Metamaterials (IAM) for Sound Source Detection
Advanced Materials, EarlyView.Our proposed metamaterial concept enables sound source detection using a single material, in contrast to conventional arrays that require dozens or even hundreds of transducers. We show that the coupled acoustic–vibrational–electrical responses in piezoelectric metamaterials give rise to topology‐governed charge transport, producing distinct voltage ...
Victor Couëdel +7 more
wiley +1 more source
Theoretical analysis of dynamic property for piezoelectric cantilever triple-layer benders with large piezoelectric and electromechanical coupling coefficients [PDF]
Journal of Advanced Dielectrics, 2016 Ferroelectric single crystals, such as PZN-PT, provide novel prospects in piezoelectric bending devices such as actuators, sensors or energy harvesters because of their extraordinarily large piezoelectric coefficients.
Li Jiao Gong +3 more
doaj +1 more source
Design and Experiment of a Clamping-Drive Alternating Operation Piezoelectric Actuator
Micromachines, 2023 In recent years, piezoelectric actuators, represented by inertial and inchworm actuators, have been widely applied because of their high accuracy and excellent responsiveness.
Mengxin Sun, Zhenwei Cao, Lukai Zheng
doaj +1 more source
Flexible Dielectric Acoustic Resonator Patch for Tissue Regeneration
Advanced Materials, EarlyView.A flexible dielectric acoustic resonator patch enables MHz‐range ultrasound generation through resonance amplification without using piezoelectric materials. Conformal integration on a curved substrate allows efficient acoustic delivery to tissue‐mimicking environments.
Donyoung Kang +7 more
wiley +1 more source
High frequency pressure oscillator for microcryocoolers [PDF]
, 2008 Microminiature pulse tube cryocoolers should operate at a frequency of an order higher than the conventional macro ones because the pulse tube cryocooler operating frequency scales inversely with the square of the pulse tube diameter.
H. J. Holland +11 more
core +2 more sources