Results 11 to 20 of about 50,810 (296)

3D Printing and processing of miniaturized transducers with near-pristine piezoelectric ceramics for localized cavitation

Nature Communications, 2023
The performance of ultrasonic transducers is largely determined by the piezoelectric properties and geometries of their active elements. Due to the brittle nature of piezoceramics, existing processing tools for piezoelectric elements only achieve simple ...
Haotian Lu, Huachen Cui, Gengxi Lu, Laiming Jiang, Ryan Hensleigh, Yushun Zeng, Adnan Rayes, Mohanchandra K. Panduranga, Megha Acharya, Zhen Wang, Andrei Irimia, Felix Wu, Gregory P. Carman, José M. Morales, Seth Putterman, Lane W. Martin, Qifa Zhou, Xiaoyu (Rayne) Zheng   +17 more
doaj   +1 more source

Piezoelectric-Based Energy Conversion and Storage Materials

Batteries, 2023
The world’s energy crisis and environmental pollution are mainly caused by the increase in the use of fossil fuels for energy, which has led scientists to investigate specific cutting-edge devices that can capture the energy present in the immediate ...
Sihui Wang, Lei Wen, Xiaopeng Gong, Ji Liang, Xinggang Hou, Feng Hou   +5 more
doaj   +1 more source

The high frequency flexural ultrasonic transducer for transmitting and receiving ultrasound in air [PDF]

, 2020
Flexural ultrasonic transducers are robust and low cost sensors that are typically used in industry for distance ranging, proximity sensing and flow measurement.
Dixon, Steve M., Feeney, Andrew, Kang, Lei   +2 more
core   +3 more sources

Environmental Robustness and Resilience of Direct-Write Ultrasonic Transducers Made from P(VDF-TrFE) Piezoelectric Coating

Sensors, 2023
Conformability, lightweight, consistency and low cost due to batch fabrication in situ on host structures are the attractive advantages of ultrasonic transducers made of piezoelectric polymer coatings for structural health monitoring (SHM).
Jin Kyu Han, Voon-Kean Wong, David Boon Kiang Lim, Percis Teena Christopher Subhodayam, Ping Luo, Kui Yao   +5 more
doaj   +1 more source

Damage Detection Using d15 Piezoelectric Sensors in a Laminate Beam Undergoing Three-Point Bending

Actuators, 2019
A major inhibition to the widespread use of laminate structures is the inability of nondestructive testing techniques to effectively evaluate the bondline integrity.
Hussain Altammar, Anoop Dhingra, Nathan Salowitz   +2 more
doaj   +1 more source

R.F. planar magnetron sputtered ZnO films II: Electrical properties [PDF]

, 1991
The electrical properties of r.f. planar magnetron sputtered ZnO films are studied by means of current-voltage, capacitance-voltage and Van der Pauw measurements.\ud \ud These films are applied as piezoelectric transducers in micromechanical sensors and ...
Bauhuis, G., Blom, F.R., Pol, F.C.M. van de, Popma, Th.J.A.   +3 more
core   +3 more sources

Measurements of Generated Energy/Electrical Quantities from Locomotion Activities Using Piezoelectric Wearable Sensors for Body Motion Energy Harvesting

Sensors, 2016
In this paper, two different piezoelectric transducers—a ceramic piezoelectric, lead zirconate titanate (PZT), and a polymeric piezoelectric, polyvinylidene fluoride (PVDF)—were compared in terms of energy that could be harvested during locomotion ...
Antonino Proto, Marek Penhaker, Daniele Bibbo, David Vala, Silvia Conforto, Maurizio Schmid   +5 more
doaj   +1 more source

Mathematical Modelling of Disk Piezoelectric Transducers for Acoustoelectronic Devices

Vìsnik Nacìonalʹnogo Tehnìčnogo Unìversitetu Ukraïni Kììvsʹkij Polìtehnìčnij Ìnstitut: Serìâ Radìotehnìka, Radìoaparatobuduvannâ, 2023
This study has presented an algorithm for assembling, solving, and analyzing the results obtained by mathematical modeling of the disc piezoelectric transducers, which are widely used in hydroacoustics, microelectronics, microcircuit engineering (for ...
C. V. Bazilo, M. O. Bondarenko, L. M. Usyk, E. V. Faure, Yu. I. Kovalenko   +4 more
doaj   +1 more source

A theoretical and experimental investigation into multilayered piezoelectric composite transducers [PDF]

, 2002
The behaviour of a number of 3-1 connectivity piezoelectric composite plate transducers is presented. The fundamental thickness mode resonance of such devices is found to be contaminated by lateral resonant activity; this is evidenced in the measured and
Hayward, G., O'Leary, R.L.
core   +1 more source

Venting in the comparative study of flexural ultrasonic transducers to improve resilience at elevated environmental pressure levels [PDF]

, 2020
The classical form of a flexural ultrasonic transducer is a piezoelectric ceramic disc bonded to a circular metallic membrane. This ceramic induces vibration modes of the membrane for the generation and detection of ultrasound.
Dixon, Steve M., Feeney, Andrew, Kang, Lei, Somerset, William   +3 more
core   +2 more sources