Results 21 to 30 of about 22,792 (197)
Active multilayer mirrors for reflectance tuning at extreme ultraviolet (EUV) wavelengths [PDF]
, 2012 We propose an active multilayer mirror structure for EUV wavelengths which can be adjusted to compensate for reflectance changes. The multilayer structure tunes the reflectance via an integrated piezoelectric layer that can change its dimension due to an
Bayraktar, M. +6 more
core +2 more sources
A novel stable nanopositioner based on a single piezoelectric stack: PistolDrive
AIP Advances, 2018 We describe a novel stable piezoelectric nanopositioner which just use one piezoelectric stack and one simple driving signal, in which the central shaft is clamped by one BeCu spring and four SiN balls that bonded to the inner wall of the cylindrical ...
Zongqiang Pang +3 more
doaj +1 more source
Advanced Composites Letters, 2019 Piezoelectric stack actuators are a type of excellent smart devices that can activate large power and displacement outputs due to their unique stack configuration and have been widely used in linear vibrators for various engineering applications. For the
Jianjun Wang +4 more
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Bidirectional Active Piezoelectric Actuator Based on Optimized Bridge-Type Amplifier
Micromachines, 2021 Piezoelectric actuators based on bridge displacement amplifying mechanisms are widely used in precision driving and positioning fields. The classical bridge mechanism relies on structural flexibility to realize the return stroke, which leads to the low ...
Weiqing Huang +3 more
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Sensors, 2021 Road power generation technology is of significance for constructing smart roads. With a high electromechanical conversion rate and high bearing capacity, the stack piezoelectric transducer is one of the most used structures in road energy harvesting to ...
Hailu Yang +5 more
doaj +1 more source
Multi-layered piezoelectric composite transducers [PDF]
, 2003 Multilayered piezoelectric materials present themselves as a suitable technology for the development of sub 100kHz transducers. A variety of different configurations have been proposed, including stacked 2-2, 1-3 and 3-1 connectivity configurations ...
Hayward, G., O'Leary, R.L., Parr, A.C.S.
core +1 more source
Development and Piezoelectric Properties of a Stack Units-Based Piezoelectric Device for Roadway Application [PDF]
Sensors, 2021 To improve the energy harvesting efficiency of the piezoelectric device, a stack units-based structure was developed and verified. Factors such as stress distribution, load resistance, loads, and loading times influencing the piezoelectric properties were investigated using theoretical analysis and experimental tests.
Chenchen Li +6 more
openaire +6 more sources
Temperature characterisation of an optically-interrogated Rogowski coil [PDF]
, 2014 An investigation into the performance of an optically-interrogated Rogowski coil over temperatures up to 80 °C is presented. Preliminary thermal tests reveal that the sensor response is temperature-dependent and the measurement errors are increased at ...
Fusiek, Grzegorz +2 more
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Performance Analysis of a Hybrid One-Sided Magnetic Exciter Mounted on a Piezoelectric Stack
Shock and Vibration, 2010 The present work proposes a non-contact hybrid exciter especially useful for harmonic excitation of lightly damped structures/rotors. In the proposed exciter an electromagnet is placed on a piezoelectric stack and the extension of the piezoelectric stack
A. Nandi, S. Neogy
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Electromechanical Modelling of a Piezoelectric Stack Energy Harvester
Proceedings, 2018 In this paper, the behavior of a piezoelectric stack generator subject to a direct mechanical force, such as that experienced by pedestrian loads, is characterized and modelled.
Matthew Evans +5 more
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