Results 1 to 10 of about 3,427 (189)

A novel PZT-based high-power piezoelectric vibrator for ultrasonic motors: properties enhanced by Yb institution [PDF]

open access: yesJournal of Intelligent Manufacturing and Special Equipment, 2023
Purpose – The electrical properties of piezoelectric vibrators have a crucial influence on the operating state of ultrasonic motors. In order to solve the problem that the current piezoelectric vibrator generates a large amount of heat during vibration ...
Jingjing Shi   +4 more
doaj   +1 more source

E-PLANE RECTANGULAR WAVEGUIDES JUNCTION WITH VIBRATOR-SLOT COUPLING BETWEEN SHOULDERS [PDF]

open access: yesРадиофизика и электроника, 2015
Rectangular waveguide junctions are widely used in antennas and waveguide devices, therefore studying of their electrodynamic characteristics is important for practical application.
S. L. Berdnik   +3 more
doaj   +1 more source

ENERGY CHARACTERISTICS OF A RECTANGULAR WAVEGUIDE T-JUNCTION INTERACTING WITH A MULTIELEMENT VIBRATOR-SLOT COUPLING STRUCTURE [PDF]

open access: yesРадиофизика и электроника, 2016
The study of peculiarity of influence of the impedance insertions on the electrodynamic characteristics of the rectangular waveguide junctions, which are widely used in the antenna-waveguide devices, is important for practical applications.
S. L. Berdnik   +4 more
doaj   +1 more source

Pressure of Electromagnetic Radiation on a Linear Vibrator

open access: yesEast European Journal of Physics, 2021
Nowadays the pressure of electromagnetic radiation in the optical range is widely used in laser traps (so called optical tweezers or single-beam gradient force trap) to control the position of microparticles, biological cells and other microscopic ...
Mykola Kokodii   +4 more
doaj   +1 more source

Suppress Vibration on Robotic Polishing with Impedance Matching

open access: yesActuators, 2021
Installing force-controlled end-effectors on the end of industrial robots has become the mainstream method for robot force control. Additionally, during the polishing process, contact force stability has an important impact on polishing quality. However, due to the difference between the robot structure and the force-controlled end-effector, in the ...
Junjie Dai   +5 more
openaire   +3 more sources

Verification of Vibration Isolation Effectiveness of the Underwater Vehicle Power Plant

open access: yesJournal of Marine Science and Engineering, 2021
In order to enhance the vibration isolation effectiveness of an underwater vehicle power plant, and alleviate the mechanical vibration of the outer housing, initially discrete vibration isolators were improved, and three new types of ring vibration ...
Yang Yang   +4 more
doaj   +1 more source

Effect of External Vibration on PZT Impedance Signature [PDF]

open access: yesSensors, 2008
Piezoelectric ceramic Lead Zirconate Titanate (PZT) transducers, working on the principle of electromechanical impedance (EMI), are increasingly applied for structural health monitoring (SHM) in aerospace, civil and mechanical engineering. The PZT transducers are usually surface bonded to or embedded in a structure and subjected to actuation so as to ...
Yang, Yaowen, Miao, Aiwei
openaire   +3 more sources

Comparison of mechanical impedance methods for vibration simulation [PDF]

open access: yes36th Structures, Structural Dynamics and Materials Conference, 1995
The work presented here explored the detrimental consequences that resulted when mechanical impedance effects were not considered in relating vibration test requirements with field measurements. The ways in which these effects can be considered were evaluated, and comparison of three impedance methods was accomplished based on a cumulative damage ...
Jeffrey A. Gatscher, Grzegorz Kawiecki
openaire   +2 more sources

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

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

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