Results 11 to 20 of about 3,529 (283)

Design and Fabrication of a Skew-Typed Longitudinal-Torsional Composite Ultrasonic Vibrator for Titanium Wire Drawing

open access: yesIEEE Access, 2016
In this paper, a new longitudinal-torsional (L&T) hybrid vibrator driven by two longitudinal ultrasonic transducers is proposed for ultrasonic-assisted wire drawing.
Shen Liu   +3 more
doaj   +3 more sources

Measurement of the Mechanical Impedance of Ear Cartilage and Development of a Coupler for Vibrator Evaluation of Cartilage Conduction Hearing Aids

open access: yesApplied Sciences
Cartilage conduction hearing aids (CCHAs) are new devices that have attracted attention in recent years for external auditory canal atresia. In these devices, a vibrator is attached to the ear cartilage to transmit sound through vibration. In this study,
Shin-ichi Ishikawa   +2 more
doaj   +3 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

Asymmetrical dipole antenna based on a phase-correcting dielectric lens

open access: yesФизика волновых процессов и радиотехнические системы, 2021
Problem. Modern mobile robotic systems are increasingly used in various fields of human activity. More and more stringent requirements are imposed on them to ensure high throughput, broadband and reliability of data transmission and control channels at ...
Dmitry S. Aliev   +4 more
doaj   +1 more source

Design and numerical simulation of novel giant magnetostrictive ultrasonic transducer

open access: yesResults in Physics, 2017
This paper provides a design method of a novel giant magnetostrictive ultrasonic transducer utilized in incremental sheet metal forming. The frequency equations of the ultrasonic vibrator were deduced and the corresponding correctness verified by the ...
Pengyang Li   +5 more
doaj   +1 more source

Performances of a Contactless Energy Transfer System for Rotary Ultrasonic Machining Applications

open access: yesIEEE Access, 2020
In rotary ultrasonic machining (RUM), the contactless energy transfer (CET) system based on the rotary transformer can replace the well-established slip ring technology to supply power for the revolving ultrasonic vibrator.
Xueming Zhu, Liping Liu, Houjun Qi
doaj   +1 more source

A Multi-Polarized Reconfigurable Plasma Antenna Array

open access: yesInternational Journal of Antennas and Propagation, 2023
Research on antenna reconfiguration is important in antenna applications. We present design of a multi-polarized plasma antenna with 40.68 MHz radio frequency (RF) power supplies and several discharge tubes filled with argon (neon) and mercury ...
Zhen Sun   +4 more
doaj   +1 more source

Ultrawideband antenna arrays on Сlavin radiators

open access: yesВісник Харківського національногоуніверситету імені В.Н. Каразіна. Серія: Радіофізика та електроніка, 2023
Background. Slot antennas have become widespread due to their good electrodynamic parameters, ease of excitation, and convenient geometry for integration into various devices.
P.G. Fomin   +3 more
doaj   +1 more source

Method for calculating a cylindrical ultrasonic cavitation filter chamber with a regeneration effect

open access: yesVìsnik Nacìonalʹnogo Tehnìčnogo Unìversitetu Ukraïni Kììvsʹkij Polìtehnìčnij Ìnstitut: Serìâ Radìotehnìka, Radìoaparatobuduvannâ, 2020
Introduction. The creation of modern ultrasonic cavitation equipment for filtering working fluids in various technological processes is associated with the study of the interaction of a liquid load with ultrasonic emitters, taking into account the ...
O. F. Luhovskyi   +6 more
doaj   +1 more source

Radiation impedance of torsionally vibrating seismic sources [PDF]

open access: yesGEOPHYSICS, 1983
The thickness and shear‐wave velocity of a surface layer can theoretically be determined from seismic radiation impedance measurements using a torsional vibrator. These studies also provide physical insight into vibrator‐earth interaction. The radiation impedance of a circular disk vibrating torsionally on an anelastic half‐space has resonance peaks ...
openaire   +3 more sources

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