Results 11 to 20 of about 81,416 (305)

PMN-PT/Epoxy 1-3 composite based ultrasonic transducer for dual-modality photoacoustic and ultrasound endoscopy

open access: yesPhotoacoustics, 2019
Endoscopic dual-modality photoacoustic (PA) and ultrasound (US) imaging has the capability of providing morphology and molecular information simultaneously.
Yan Li   +8 more
doaj   +3 more sources

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   +3 more sources

Electromechanical Dynamics Model of Ultrasonic Transducer in Ultrasonic Machining Based on Equivalent Circuit Approach

open access: yesSensors, 2019
Ultrasonic transducer is a piezoelectric actuator that converts AC electrical energy into ultrasonic mechanical vibration to accelerate the material removal rate of workpiece in rotary ultrasonic machining (RUM).
Jian-Guo Zhang   +4 more
doaj   +3 more sources

An analytical model of a longitudinal-torsional ultrasonic transducer [PDF]

open access: yes, 2012
The combination of longitudinal and torsional (LT) vibrations at high frequencies finds many applications such as ultrasonic drilling, ultrasonic welding, and ultrasonic motors.
Al-Budairi, H., Lucas, M.
core   +1 more source

Functional Assay of Cancer Cell Invasion Potential Based on Mechanotransduction of Focused Ultrasound

open access: yesFrontiers in Oncology, 2017
Cancer cells undergo a number of biophysical changes as they transform from an indolent to an aggressive state. These changes, which include altered mechanical and electrical properties, can reveal important diagnostic information about disease status ...
Andrew C. Weitz   +15 more
doaj   +1 more source

Research on correlation model between transducer temperature and acoustic performance parameters of ultrasonic machining system

open access: yesAIP Advances, 2022
In the process of ultrasonic vibration cutting (UVC), the acoustic performance parameters of ultrasonic machining system change because of systems heating up and cutting loads. The changes of acoustic performance parameters will affect resonant frequency,
Hong-xian Ye   +4 more
doaj   +1 more source

Optimisation of a cymbal transducer for its use in a high-power ultrasonic cutting device for bone surgery [PDF]

open access: yes, 2016
The class V cymbal is a flextensional transducer commonly used in low-power ultrasonic applications. The resonance frequency of the transducer can be tailored by the choice of end-cap and driver materials, and the dimensions of the end-caps.
Bejarano, Fernando   +2 more
core   +1 more source

Flexible ultrasonic transducers

open access: yesIEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2006
Flexible ultrasonic transducers (UTs) consisting of a metal foil, a piezoelectric ceramic film, and a top electrode have been developed. The flexibility is realized owing to the porosity of piezoelectric film and the thinness of metal foil. In this paper, the stainless steel (SS), lead-zirconate-titanate (PZT)/PZT composite and silver paste were chosen
Kobayashi, M., Jen, C.-K., Lévesque, D.
openaire   +4 more sources

Modal analysis and nonlinear characterization of an airborne power ultrasonic transducer with rectangular plate radiator [PDF]

open access: yes, 2018
Some industrial processes like particle agglomeration or food dehydration among others can be enhanced by the use of power ultrasonic technologies.
Acosta, V.M.   +3 more
core   +1 more source

A Matlab/Simulink 3D model of unsymmetrical ultrasonic sandwich transducers [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2018
Ultrasonic sandwich transducer is a half-wave resonant structure which oscillates in thickness direction. This paper presents a new Matlab/ Simulink model of a prestressed unsymmetrical ultrasonic sandwich transducer, which is modeled by ...
Jovanović Igor   +2 more
doaj   +1 more source

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