Results 81 to 90 of about 82,374 (198)

Piezoelectric coupling coefficient of Bleustein-Gulyaev waves

open access: yesElectronics Letters, 1970
Five different theoretical methods of assessing the piezoelectric coupling coefficient of Bleustein-Gulyaev waves are described and compared. The dependence of the coupling of an interdigital transducer on the electrode-width/gap-between-electrodes ratio is described.
R.F. Milsom, M. Redwood
openaire   +1 more source

Crystal Structure Evolution of Piezoelectric Fe-Doped ZnO Film by Magnetron Co-Sputtering Technique

open access: yesCondensed Matter
Zinc oxide (ZnO) exhibits piezoelectric properties due to its asymmetric structure, making it suitable for piezoelectric devices. This experiment deposited Fe-doped ZnO films on silicon substrates using a dual-target magnetron co-sputtering system.
Ya-Chih Cheng   +4 more
doaj   +1 more source

Fabrication and characterization of free-standing thick-film piezoelectric cantilevers for energy harvesting

open access: yes, 2009
Research into energy harvesting from ambient vibration sources has attracted great interest over the last few years, largely as a result of advances in the areas of wireless technology and low power electronics.
Harris, Nick   +2 more
core   +1 more source

Analysis of a Cascaded Piezoelectric Ultrasonic Transducer with Three Sets of Piezoelectric Ceramic Stacks

open access: yesSensors, 2019
To increase the ultrasonic intensity and power of a piezoelectric transducer, a cascaded piezoelectric ultrasonic transducer with the three sets of piezoelectric ceramic stacks is analyzed.
Xiangdi Meng, Shuyu Lin
doaj   +1 more source

research Paper: Investigation of the Effect of Sm3+ Doping on the Piezoelectric Properties of PIN-PMN-PT Ceramics [PDF]

open access: yesفیزیک کاربردی ایران
Piezoelectric materials, such as sensors and electromechanical transducers, are widely used in applications related to electromechanical energy conversion. Among piezoelectric materials, the ferroelectric compounds of the Relaxor-PT family have attracted
Hadi Papi   +2 more
doaj   +1 more source

Effects of electrostatic force on piezoelectric materials under high electric field: Impact on GaN-based nanoscale structures

open access: yes, 2011
The determination of the electromechanical properties of materials for a parallel-plate capacitor structure is affected by the electrostatic force between their electrodes. The corrections induced by this electric-field-induced stress are usually assumed
Rivera, Carlos
core   +1 more source

Correlation between structure and Rayleigh parameters in the lead-free piezoceramic (1-x)Ba(Ti0.88 Sn0.12)O3-x(Ba0.7Ca0.3)TiO3

open access: yes, 2017
Composition dependent Rayleigh and structural analysis was carried out on the lead-free piezoceramics (1-x)(BaTi0.88Sn0.12)-x(Ba0.7Ca0.3)TiO3 at room temperature.
Abebe, Mulualem   +2 more
core   +1 more source

New High Efficiency and Strength Bending Strain Sensor Based on Piezoelectric Stacks

open access: yesBuildings
This article is devoted to a mathematical model of a new piezoelectric sensor used for measuring bending strains. The first simple model of a piezoelectric sensor of bending deformations (we will call it a classical sensor) was presented in our previous ...
Vladimir Sidorov   +2 more
doaj   +1 more source

Fabrication of Surface Micromachined AlN Piezoelectric Microstructures and its Potential Apllication to RF Resonators [PDF]

open access: yes, 2005
We report on a novel microfabrication method to fabricate aluminum nitride (AlN) piezoelectric microstructures down to 2 microns size by a surface micromachining process.
Berenschot, E.   +3 more
core   +1 more source

Effect of Filling Material Properties on 1-3 Piezoelectric Composite Performance

open access: yesMicromachines
The 1-3 piezoelectric composite is the key component of the acoustic transducer, which is widely used in detection, due to the high energy conversion efficiency, cheap raw material, and low aging. To reveal the influence of epoxy mixture, used to connect
Yao Liu   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy