Results 21 to 30 of about 843 (169)

PHYSICAL FIELDS OF CIRCULAR CYLINDRICAL PIEZOCERAMIC RECEIVER IN PRESENCE OF A FLAT ACOUSTIC SOFT SCREEN

Приборы и методы измерений, 2017
System in the form of a circular cylindrical piezoceramic transducer near a flat acoustic screen was analyzed. The aim of the work was to solve the problem of receiving plane sound waves by «cylindrical piezoceramic transducer – flat acoustically soft ...
A. V. Derepa, A. G. Leiko, O. N. Pozdniakova   +2 more
doaj   +1 more source

Characteristics of a 2-2 Piezoelectric Composite Transducer Made by Magnetic Force Assembly

Crystals, 2022
A wider operational bandwidth, a higher electromechanical coupling factor, and lower acoustic impedance are important requirements for ultrasound transducers for use across many applications. Conventional 2-2 piezoelectric composite transducers have been
Taeyang Kim
doaj   +1 more source

Monitoring concept for structural integration of PZT-fiber arrays in metal sheets: a numerical and experimental study

International Journal of Smart and Nano Materials, 2018
The technique joining by forming allows the structural integration of piezoceramic fibers into locally microstructured metal sheets without any elastic interlayers.
Welf-Guntram Drossel, Andreas Schubert, Matthias Putz, Hans-Joachim Koriath, Volker Wittstock, Sebastian Hensel, Alexander Pierer, Benedikt Müller, Marek Schmidt   +8 more
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Structure-Integrated Loudspeaker Using Fiber-Reinforced Plastics and Piezoelectric Transducers—Design, Manufacturing and Validation

Applied Sciences, 2020
In the present study, it could be shown that by integration of a piezoceramic transducer in a fiber-reinforced door side panel, a flat loudspeaker can be realized.
Benjamin Zenker, Martin Dannemann, Sirko Geller, Klaudiusz Holeczek, Oliver Weißenborn, M. Ercan Altinsoy, Niels Modler   +6 more
doaj   +1 more source

Inspection of Piezoceramic Transducers Used for Structural Health Monitoring [PDF]

Materials, 2017
The use of piezoelectric wafer active sensors (PWAS) for structural health monitoring (SHM) purposes is state of the art for acousto-ultrasonic-based methods. For system reliability, detailed information about the PWAS itself is necessary. This paper gives an overview on frequent PWAS faults and presents the effects of these faults on the wave ...
Inka Mueller, Claus-Peter Fritzen
openaire   +2 more sources

Enhanced torsional actuation and stress coupling in Mn-modified 0.93(Na0.5Bi0.5TiO3)-0.07BaTiO3 lead-free piezoceramic system

Science and Technology of Advanced Materials, 2017
This paper is concerned with the development of a piezoelectric d15 shear-induced torsion actuator made of a lead-free piezoceramic material exhibiting giant piezoelectric shear stress coefficient (e15) and piezoelectric transverse shear actuation force ...
Pelin Berik, Deepam Maurya, Prashant Kumar, Min Gyu Kang, Shashank Priya   +4 more
doaj   +1 more source

Design of a Wideband Tonpilz Transducer Comprising Non-Uniform Piezoceramic Stacks with Equivalent Circuits

Sensors, 2021
Tonpilz transducers are desirable for their superior performance in underwater target detection and communication applications. Several design schemes to widen their bandwidth have been reported, but these schemes often involve a complex structure or ...
Seonghun Pyo, Muhammad Shakeel Afzal, Youngsub Lim, Seungjin Lee, Yongrae Roh   +4 more
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Structural Health Monitoring and Interface Damage Detection for Infill Reinforced Concrete Walls in Seismic Retrofit of Reinforced Concrete Frames Using Piezoceramic-Based Transducers Under the Cyclic Loading

Applied Sciences, 2019
In this work, the piezoceramic-based transducers are used to perform the structural health monitoring (SHM) and interface damage detecting of non-ductile reinforced concrete (RC) frames retrofitted by post-installed RC walls. In order to develop the post-
Wen-I Liao, Fu-Pei Hsiao, Chien-Kuo Chiu, Chin-En Ho   +3 more
doaj   +1 more source

Assessment of the Influence of the Geometrical Shape of the Damper on the Efficiency of an Ultrasonic Operation Piezoelectric Transducer

Sensors, 2023
The results of a study on the geometric shape of the damper on the efficiency of the ultrasonic piezoelectric transducer are presented. In particular, a damper in the form of a truncated cone is considered, the generatrix of which has an inclination ...
M. S. Vechera, S. I. Konovalov, R. S. Konovalov, B. I, V. M. Tsaplev, A. D. Soloveva, J. Lee   +6 more
doaj   +1 more source

Analysis of the conical piezoelectric acoustic emission transducer [PDF]

Applied and Computational Mechanics, 2008
Analyses of the properties of conical piezoelectric acoustic emission transducer are presented here. The conical piezoelectric transducer is used to scanning normal displacement on a surface of testing constructions in NDT methods, such as acoustic ...
Hora P., Červená O.
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