Sliding-mode control of a flexure based mechanism using piezoelectric actuators [PDF]
, 2012 The position control of designed 3 PRR flexure based mechanism is examined in this paper. The aims of the work are to eliminate the parasitic motions of the stage, misalignments of the actuators, errors of manufacturing and hysteresis of the system by ...
Acer, Merve +2 more
core +3 more sources
An Umbrella-Shaped Linear Piezoelectric Actuator Based on Stick-Slip Motion Principle
IEEE Access, 2019 Piezoelectric actuators are widely utilized in many research and industrial fields, since they could achieve high positioning accuracy based on inverse piezoelectric effect.
Jiafeng Yao +6 more
doaj +1 more source
A piezoelectric multilayer-stacked hybrid actuation/transduction system [PDF]
Applied Physics Letters, 2011 A piezoelectric multilayer-stacked hybrid actuation/transduction system (stacked-HYBATS) is reported in this letter. It uses synergetic contributions from positive-strain and negative-strain piezoelectric multilayer-stacks to give displacements of about 3.5 times those of the same-sized piezoelectric flextensional actuator/transducer.
Tian-Bing Xu, Xiaoning Jiang, Ji Su
openaire +1 more source
A Novel Hybrid Actuator Driven Magnetically in the Bi-Cell PEM Fuel Cell Stack
Metals, 2017 This study develops an air breathing pump driven by a piezoelectric actuator for a proton exchange membrane fuel cell (PEMFC) stack. Permanent magnets are combined with a piezoelectric actuator to drive three air breathing pumps using magnetic force ...
Hsiaokang Ma, Yuanlung Hsu, Poching Hsu
doaj +1 more source
Active shape correction of a thin glass/plastic X-ray mirror [PDF]
, 2014 Optics for future X-ray telescopes will be characterized by very large aperture and focal length, and will be made of lightweight materials like glass or plastic in order to keep the total mass within acceptable limits. Optics based on thin slumped glass
Barbera, M. +11 more
core +2 more sources
A computationally efficient model to capture the inertia of the piezoelectric stack in impact drive mechanism in the case of the in-pipe inspection application [PDF]
Mechanical Sciences, 2016 This paper presents a new model for the piezoelectric actuator (PA) in the context of in the impact drive mechanism (IDM) for the in-pipe inspection application.
J. Li +4 more
doaj +1 more source
Pathway to the PiezoElectronic Transduction Logic Device
, 2015 The information age challenges computer technology to process an exponentially increasing computational load on a limited energy budget - a requirement that demands an exponential reduction in energy per operation.
Armstrong, C. +20 more
core +2 more sources
Fuzzy-enhanced Dual-loop Control Strategy for Precise Nanopositioning [PDF]
, 2017 Postprin
Altaher, Mohammed Talib +1 more
core +1 more source
Simple piezoelectric-actuated mirror with 180 kHz servo bandwidth
, 2010 We present a high bandwidth piezoelectric-actuated mirror for length stabilization of an optical cavity. The actuator displays a transfer function with a flat amplitude response and greater than 135$^\circ$ phase margin up to 200 kHz, allowing a 180 kHz ...
Abramovici +26 more
core +1 more source
Spin Defects in Hexagonal Boron Nitride as 2D Strain Sensors
Advanced Functional Materials, EarlyView.We demonstrate that boron‐vacancy (VB${\rm V}_{\rm B}$) centers in hexagonal boron nitride (hBN) enable quantitative strain sensing with sub‐micrometer resolution. Using this approach under continuously tunable in‐plane stress, we precisely quantify strain‐induced shifts of the E2g${\rm E}_{2{\rm g}}$ Raman mode in multilayer hBN, establishing VB${\rm ...
Zhao Mu +7 more
wiley +1 more source