Results 21 to 30 of about 13,312 (255)

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  

An Incus-Body Driving Type Piezoelectric Middle Ear Implant Design and Evaluation in 3D Computational Model and Temporal Bone

open access: yesThe 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
doaj   +1 more source

High Temperature, High Power Piezoelectric Composite Transducers

open access: yesSensors, 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
doaj   +1 more source

Design and Fabrication of a High-Frequency Single-Directional Planar Underwater Ultrasound Transducer

open access: yesSensors, 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
doaj   +1 more source

Research on Effective Electric-Mechanical Coupling Coefficient of Sandwich Type Piezoelectric Ultrasonic Transducer Using Bending Vibration Mode

open access: yesAdvances 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

open access: yesSensors, 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
doaj   +1 more source

A High-Reliability Piezoelectric Tile Transducer for Converting Bridge Vibration to Electrical Energy for Smart Transportation

open access: yesMicromachines, 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
doaj   +1 more source

Research and Fabrication of High-Frequency Broadband and Omnidirectional Transmitting Transducer

open access: yesSensors, 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
doaj   +1 more source

Constant-Power versus Constant-Voltage Actuation in Frequency Sweeps for Acoustofluidic Applications

open access: yesMicromachines, 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
doaj   +1 more source

Advances in Sustainable and Wearable Textile Based Soft Robotics

open access: yesAdvanced Functional Materials, EarlyView.
This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas   +6 more
wiley   +1 more source

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