Results 71 to 80 of about 7,662 (250)

High Quality Factor Silicon Cantilever Driven by PZT Actuator for Resonant Based Mass Detection [PDF]

open access: yes, 2008
A high quality factor (Q-factor) piezoelectric lead zirconat titanate (PZT) actuated single crystal silicon cantilever was proposed in this paper for resonant based ultra-sensitive mass detection.
Ikehara, T.   +5 more
core   +1 more source

Magnetic Textiles: A Review of Materials, Fabrication, Properties, and Applications

open access: yesAdvanced Materials Technologies, EarlyView.
Magnetic textiles (M‐textiles) are emerging as a programmable materials platform that merges magnetic matter with hierarchical textile structures. This article consolidates magnetic material classes, textile architectures, and fabrication and magnetization strategies, revealing structure–property–function relationships that govern magneto‐mechanical ...
Li Ke   +3 more
wiley   +1 more source

Improvement in Durability of Piezoelectric Stack Actuator.

open access: yesJournal of the Ceramic Society of Japan, 1999
A study of durability test was piezoelectric stack actuator having various values of Qm, Tc, Ec and bending strength. The high bending strength but low Ec stack showed a decrease of displacement and appeared cracks which occurred at the edge of positive side of PZT pellet and grown to the center of diameter and negative side.
openaire   +2 more sources

Active Vibration Control of Structures using an Impedance Matching Control Technique [PDF]

open access: yes, 2005
Active vibration control of structures has gained a lot of interest in recent years. This paper presents an active vibration control methodology of a structure using piezoelectric actuators.
Kamath, GM   +4 more
core   +1 more source

Un estudio comparativo de actuadores Piezoeléctricos y Magnetoestrictivos para estructuras inteligentes [PDF]

open access: yes, 2005
[EN] This paper introduces a comparative analysis of Piezoelectric (PZ) and Magnetostrictive (MS) actuators as components in smart structures. There is an increasing interest in functional structures which are able to adapt to external or internal ...
Büll, Udalrich   +5 more
core   +1 more source

Shaping Carbon Nitrides for Advanced Macrostructures

open access: yesAdvanced Materials Technologies, EarlyView.
This review examines how carbon nitride can be shaped through a range of printing and interfacial assembly methods. By bringing together additive manufacturing and liquid–liquid structuring concepts, carbon nitride is moving beyond its traditional powder‐based photocatalyst form toward digitally designed robust macroscale architectures with high design
Simona Baluchová, Baris Kumru
wiley   +1 more source

Piezoelectric Layer Transfer Process for MEMS

open access: yesProceedings
Piezoelectric MEMS devices were fabricated on 200 mm Si wafers using both deposited and layer-transferred PZT films. In both cases, the PZT-based devices showed ferroelectric and piezoelectric properties at the level of current state-of-the-art devices ...
Gwenael Le Rhun   +4 more
doaj   +1 more source

Modeling and design of a pre-stressed piezoelectric stack actuator

open access: yesAIP Advances, 2017
To provide a method for designing a pre-stressed PSA with high-performance, it is very meaningful to model the dynamic characteristics of the pre-stressed PSA accurately.
Shiping Jiang, Lei Cheng
doaj   +1 more source

Evaluation of error bound for a DT sliding mode control with disturbance observer [PDF]

open access: yes, 2006
In this paper an estimate of the upper bound of control error for discrete-time implementation of a Sliding Mode Control (DTSMC) combined with disturbance observer is investigated. Having in mind application to PZT high bandwidth actuators and since high
Abidi, Khalid Seyed   +3 more
core  

Focusing Mirror with Tunable Eccentricity

open access: yes, 2013
We present a new kind of varifocal mirror with independently adjustable curvatures in the major directions. For actuation we use two stacked piezo bending actuators with crossed in-plane polarization.
Brunne, Jens   +3 more
core   +1 more source

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