Results 31 to 40 of about 200,741 (275)
The Scientific World Journal, 2014 A new incus-body driving type transducer relying on piezoelectric stack, with broad frequency bandwidth, is proposed for use in a middle ear implant. To aid the design process of this transducer, a coupling biomechanical model of the human middle ear and
Houguang Liu +5 more
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High Temperature, High Power Piezoelectric Composite Transducers
Sensors, 2014 Piezoelectric composites are a class of functional materials consisting of piezoelectric active materials and non-piezoelectric passive polymers, mechanically attached together to form different connectivities.
Hyeong Jae Lee +3 more
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Sensors, 2019 This paper describes the fabrication of 1-3 piezoelectric composites by using PZT5-A pure piezoelectric ceramics and the preparation of a high-frequency single-directional planar underwater ultrasound transducer by using the developed composites.
Qiguo Huang +4 more
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Harmonic analysis of lossy piezoelectric composite transducers using the plane wave expansion method [PDF]
, 2008 Periodic composite ultrasonic transducers oer many advantages but the periodic pillar architecture can give rise to unwanted modes of vibration which interfere with the piston like motion of the fundamental thickness mode.
Hayward, Gordon +3 more
core +4 more sources
Advances in Mechanical Engineering, 2015 An analytical model on electromechanical coupling coefficient and the length optimization of a bending piezoelectric ultrasonic transducer are proposed. The piezoelectric transducer consists of 8 PZT elements sandwiched between four thin electrodes, and ...
Qiang Zhang, Shengjun Shi, Weishan Chen
doaj +1 more source
A Seismic Data Acquisition System Based on Wireless Network Transmission
Sensors, 2021 A seismic data acquisition system based on wireless network transmission is designed to improve the low-frequency response and low sensitivity of the existing acquisition system.
Yanxia Huang +6 more
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Micromachines, 2023 Piezoelectric energy transducers offer great potential for converting the vibrations of pedestrian footsteps or cars moving on a bridge or road into electricity.
Thanh Huyen Pham +2 more
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Research and Fabrication of High-Frequency Broadband and Omnidirectional Transmitting Transducer
Sensors, 2018 A wide-band cylindrical transducer was developed by using the wide band of the composite material and the matched matching layer for multimode coupling. Firstly, the structure size of the transducer’s sensitive component was designed by using ANSYS
Shaohua Hao +4 more
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Constant-Power versus Constant-Voltage Actuation in Frequency Sweeps for Acoustofluidic Applications
Micromachines, 2022 Supplying a piezoelectric transducer with constant voltage or constant power during a frequency sweep can lead to different results in the determination of the acoustofluidic resonance frequencies, which are observed when studying the acoustophoretic ...
Fabian Lickert +2 more
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Mathematical Modelling of Cylindrical Piezoelectric Transducers for Electroacoustic Devices
Vìsnik Nacìonalʹnogo Tehnìčnogo Unìversitetu Ukraïni Kììvsʹkij Polìtehnìčnij Ìnstitut: Serìâ Radìotehnìka, Radìoaparatobuduvannâ, 2022 This paper will review the procedure and the results of the research conducted on developing mathematical models of cylindrical piezoelectric transducers that are extensively applied in electrical acoustics and hydro acoustics (for example, in devices ...
C. V. Bazilo +4 more
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