Results 21 to 30 of about 200,741 (275)

Tapered transmission line technique based graded matching layers for thickness mode piezoelectric transducers [PDF]

open access: yes, 2009
Conventionally, in order to acoustically match thickness mode piezoelectric transducers to a low acoustic impedance load medium, multiple quarter wavelength (QW) matching layers are employed at the front face of the device.
Ramadas, Sivaram Nishal   +6 more
core   +4 more sources

Effect of the Matching Circuit on the Electromechanical Characteristics of Sandwiched Piezoelectric Transducers

open access: yesSensors, 2017
The input electrical impedance behaves as a capacitive when a piezoelectric transducer is excited near its resonance frequency. In order to increase the energy transmission efficiency, a series or parallel inductor should be used to compensate the ...
Shuyu Lin, Jie Xu
doaj   +1 more source

Mathematical Modelling of Rod-Type Piezo-Electric Transducers for Acoustoelectronic Devices

open access: yesVìsnik Nacìonalʹnogo Tehnìčnogo Unìversitetu Ukraïni Kììvsʹkij Polìtehnìčnij Ìnstitut: Serìâ Radìotehnìka, Radìoaparatobuduvannâ, 2021
The work is devoted to the peculiarities of the construction and study of mathematical models of rod-type piezoelectric transducers, which are widely used in various acoustoelectronic devices (hydroacoustic means of target detection, ultrasonic non ...
C. V. Bazilo   +4 more
doaj   +1 more source

Analysis on Coupled Vibration of a Radially Polarized Piezoelectric Cylindrical Transducer

open access: yesSensors, 2017
Coupled vibration of a radially polarized piezoelectric cylindrical transducer is analyzed with the mechanical coupling coefficient method. The method has been utilized to analyze the metal cylindrical transducer and the axially polarized piezoelectric ...
Jie Xu, Shuyu Lin, Yan Ma, Yifan Tang
doaj   +1 more source

Excitation of Mechanical Resonances in the Stationary Ring of a Mechanical Seal by a Continuously Operated Electromagnetic Acoustic Transducer

open access: yesSensors, 2023
Acoustic/ultrasonic testing is now a common method in the field of nondestructive testing for detecting material defects or monitoring ongoing mechanical changes in a structure during operation. In many applications, piezoelectric transducers are used to
Alexander Siegl   +3 more
doaj   +1 more source

Implementation of raindrops energy collector board using piezoelectric transducer

open access: yesMATEC Web of Conferences, 2018
Indonesia is a country that has a fairly high rainfall, because it is located in the tropical area. This condition could be a potential for generating electrical energy from raindrops.
Defiyani Eka   +2 more
doaj   +1 more source

Recent Advances in Transducers for Intravascular Ultrasound (IVUS) Imaging

open access: yesSensors, 2021
As a well-known medical imaging methodology, intravascular ultrasound (IVUS) imaging plays a critical role in diagnosis, treatment guidance and post-treatment assessment of coronary artery diseases.
Chang Peng   +4 more
doaj   +1 more source

Study on energy transmission through metal wall based on piezoelectric material

open access: yesMATEC Web of Conferences, 2016
The efficiency of electric energy transmission through metal wall by ultrasonic wave mainly depends on the relevant parameter of the sandwich structure system, which is consist of a transit piezoelectric transducer, a receive piezoelectric transducer and
Sun Yun-zhe   +4 more
doaj   +1 more source

MEMS-BASED WIRELESS VIBRATION TRANSDUCER FOR CONDITION MONITORING

open access: yesInformation and Telecommunication Sciences, 2022
Background. When monitoring vibration of rotating machines, especially heavy ones, problems with cables of transducers often emerge. Those cables are usually long, heavy and prone to damage. Objective. The purpose of the paper is to develop a wireless
Сергій Іванов   +1 more
doaj   +1 more source

Design parameters and modal optimization of radial vibration matching layer transducer

open access: yesJin'gangshi yu moliao moju gongcheng, 2021
The radial vibration transducer based on the matching layer shell was designed. The influences of the material of the matching layer, the diameter of the transducer and the thickness of the piezoelectric vibrator on the modal shape of the transducer were
GUO Shuaihong, LI Jun, WANG Huantao
doaj  

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