Results 31 to 40 of about 150,460 (295)

Directivity Modeling and Simulation Analysis of a Novel Structure MEMS Piezoelectric Vector Hydrophone

Micromachines, 2023
In this paper, a novel dual-mass MEMS piezoelectric vector hydrophone is proposed to eliminate the transverse effect and solve the problem of directivity offset in traditional single-mass MEMS piezoelectric vector hydrophones.
Wei Deng, Qingqing Fan, Junhong Li, Chenghao Wang   +3 more
doaj   +1 more source

Research on Vibration Characteristics of Piezoelectric Ceramic Atomizer Based on ANSYS [PDF]

E3S Web of Conferences, 2019
In the design and application of ultrasonic atomizer, the resonant frequency and vibration mode of piezoelectric transducer have an effect on the working state and atomization effect of the atomizer.
Chen Yan, Ma Chunyan, Shen Zaihe, Chen Rui   +3 more
doaj   +1 more source

Importance of second-order piezoelectric effects in zincblende semiconductors

, 2006
We show that the piezoelectric effect that describes the emergence of an electric field in response to a crystal deformation in III-V semiconductors such as GaAs and InAs has strong contributions from second-order effects that have been neglected so far.
Alex Zunger, David Vanderbilt, G. Arlt, Gabriel Bester, K. Hubner, W. G. Cady, Xifan Wu   +6 more
core   +1 more source

An extended grain boundary barrier height model including the impact of internal electric field

AIP Advances, 2018
An extended phenomenological model is proposed to rationalize the potential barriers of the varistor like boundaries of piezoelectric semiconductors.
Bai-Xiang Xu, Zi-Qi Zhou, Peter Keil, Till Frömling   +3 more
doaj   +1 more source

Energy levels in polarization superlattices: a comparison of continuum strain models [PDF]

, 2003
A theoretical model for the energy levels in polarization superlattices is presented. The model includes the effect of strain on the local polarization-induced electric fields and the subsequent effect on the energy levels.
, Auld B A, B Jogai, Bahder T B, Bernardini F, Cheng C C Kao K S Chen Y C, E Pan, Halsall M P, Hedin L, J D Albrecht, Löbl H P Klee M Wunnicke O Dekker R Pelt E V, Nye J F, Smith D L, Suzuki N, Suzuki N, Suzuki N, Suzuki N, Zelenka J   +17 more
core   +1 more source

Characteristics Research of a High Sensitivity Piezoelectric MOSFET Acceleration Sensor

Sensors, 2020
In order to improve the output sensitivity of the piezoelectric acceleration sensor, this paper proposed a high sensitivity acceleration sensor based on a piezoelectric metal oxide semiconductor field effect transistor (MOSFET).
Chunpeng Ai, Xiaofeng Zhao, Dianzhong Wen   +2 more
doaj   +1 more source

Structural Design and Physical Mechanism of Axial and Radial Sandwich Resonators with Piezoelectric Ceramics: A Review

Sensors, 2021
Piezoelectric ceramics are inexpensive functional materials which are widely used in sonar detection, home appliances, meteorological detection, telemetry and environmental protection and other applications.
Wenjie Wang, Yi Jiang, Peter J. Thomas
doaj   +1 more source

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

, 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

The effect of hydrostatic pressure on thermodynamic characteristics of NH$_3$CH$_2$COOH$\cdot$H$_2$PO$_3$ type ferroelectric materials [PDF]

, 2017
The model of NH$_3$CH$_2$COOH$\cdot$H$_2$PO$_3$, modified by taking into account the piezoelectric coupling between the ordering structure elements and the strains $\varepsilon_i$, $\varepsilon_j$, is used for investigation of the effects that appear ...
Levitskii, R. R., Vdovych, A. S., Zachek, I. R.   +2 more
core   +2 more sources

Power Generation Technology Based on Piezoelectric Nanocomposite / Pjezoelektrinio nanokompozito naudojimas elektros gavybai

Mokslas: Lietuvos Ateitis, 2017
A new system based on a piezoelectric effect for electric power generation has been developed. Material used in the new model is flexible and has piezoelectric effect.
Justas Ciganas, Giedrius Janušas
doaj   +1 more source