Results 11 to 20 of about 1,669,789 (163)

Design and Performance Study of an Ultrasonic Synthetic Jet Piezoelectric Pump Based on Multi-Level Structural Optimization [PDF]

open access: yesMicromachines
The present work presents a new synthetic jet piezoelectric pump designed to address the airflow delivery needs arising from the increasing power density of high-performance microelectronics.
Zixin Chen   +4 more
doaj   +2 more sources

Surface Acoustic Wave Devices: New Mechanisms, Enabling Techniques, and Application Frontiers [PDF]

open access: yesMicromachines
Surface Acoustic Wave (SAW) technology, long central to analog signal processing and RF filtering, is undergoing a major renewal. Driven by advances that decouple SAWs from traditional piezoelectric materials and fixed-function devices, the field is ...
Hongsheng Xu   +5 more
doaj   +2 more sources

The Development of a PiezoelectricI Fan System for the Flapping Wing Micro-Air-Vehicle Application [PDF]

open access: yes, 2008
A micro air vehicle (MAV) is a semiautonomous airborne vehicle which measures less than 15 cm in any dimension. It can be used to access situations too dangerous for direct human intervention, e.g., explosive devices planted in buildings and video ...
Chung, Hsien-Chun
core   +7 more sources

Wetting and Spreading Behaviors of Impacting Metal Droplet Regulated by 2D Ultrasonic Field [PDF]

open access: yesAdvanced Science
The wetting and spreading behaviors of metal droplets on solid substrates are critical aspects of additive manufacturing. However, the inherent characteristics of metal droplets, including high surface tension, elevated viscosity, and extreme ...
Yuzhu Zhao   +4 more
doaj   +2 more sources

PZT Composite Film Preparation and Characterization Using a Method of Sol-Gel and Electrohydrodynamic Jet Printing

open access: yesMicromachines, 2023
Lead zircon titanate (PZT) composite films were advantageously prepared by a novel hybrid method of sol-gel and electrohydrodynamic jet (E-jet) printing.
Yan Cui   +5 more
doaj   +1 more source

Piezoelectric Energy Harvesting: Enhancing Power Output by Device Optimisation and Circuit Techniques [PDF]

open access: yes, 2010
Energy harvesting; that is, harvesting small amounts of energy from environmental sources such as solar, air flow or vibrations using small-scale (≈1cm 3 ) devices, offers the prospect of powering portable electronic devices such as GPS receivers and
Worthington, Emma
core   +7 more sources

Coupled piezoelectric fans with two degree of freedom motion for the application of flapping wing micro aerial vehicles [PDF]

open access: yes, 2008
Piezoelectric fans consisting of a piezoelectric layer and an elastic metal layer were prepared by epoxy bonding and a coupled flexible wing was formed by a pair of carbon fibre reinforced plastic wing spars and polymer skin attached to two ...
Lal Kummari, K.   +5 more
core   +1 more source

A micro ultrasonic motor using a micro-machined cylindrical bulk PZT transducer [PDF]

open access: yes, 2006
In this paper, a micro ultrasonic motor using a micro-machined bulk piezoelectric transducer is introduced. The cylindrical shaped bulk piezoelectric transducer, a diameter of 0.8 mm and a height of 2.2 mm, was developed as stator transducer for ...
Morita, Takeshi   +5 more
core   +1 more source

Characterisation of PZT thin film micro-actuators using a silicon micro-force sensor [PDF]

open access: yes, 2007
This paper reports on the measurements of displacement and blocking force of piezoelectric micro-cantilevers. The free displacement was studied using a surface profiler and a laser vibrometer.
Ensell, Graham   +10 more
core   +1 more source

Failure mechanism analysis and experimental study of lead zirconate titanate actuators in piezoelectric micro jetting valve [PDF]

open access: yesAIP Advances, 2020
Piezoelectric ceramics have recently become one of the most common materials in electromechanical industries, especially in the microelectronic packaging industry. In a jetting dispenser, the presence of imbalanced stress-induced defects in such materials prevents them from providing high stability during the jetting dispensing process.
Zhiwei Luo   +3 more
openaire   +2 more sources

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