Spherical-omnidirectional piezoelectric composite transducer for high frequency underwater acoustics

2020 ◽  
pp. 1-1
Author(s):  
Yanjun Zhang ◽  
Likun Wang ◽  
Lei Qin ◽  
Chao Zhong ◽  
Shaohua Hao
Keyword(s):  
High Frequency ◽  
Underwater Acoustics ◽  
Piezoelectric Composite

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

Sensors ◽  
2018 ◽  
Vol 18 (7) ◽  
pp. 2347 ◽  
Author(s):  
Shaohua Hao ◽  
Hongwei Wang ◽  
Chao Zhong ◽  
Likun Wang ◽  
Hao Zhang
Keyword(s):  
Composite Material ◽  
High Frequency ◽  
Wide Band ◽  
Simulation Software ◽  
Piezoelectric Composite ◽  
Voltage Response ◽  
Forming Process ◽  
Composite Ring ◽  
Matching Layer ◽  
Acoustic Transducer

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 simulation software. Secondly, the piezoelectric composite ring-shaped sensitive component was fabricated by the piezoelectric composite curved-surface forming process, and the matching layer was coated on the periphery of the ring-shaped piezoelectric composite material. Finally, it was encapsulated and the electrodes were drawn out to make a high-frequency broadband horizontal omnidirectional water acoustic transducer prototype. After testing, the working frequency range of the transducer was 230–380 kHz, and the maximum transmission voltage response was 168 dB in the water.

Wideband and wide beam piezoelectric composite spherical cap transducer for underwater acoustics

2021 ◽  
Vol 583 (1) ◽  
pp. 295-305
Author(s):  
Yanjun Zhang ◽  
Likun Wang ◽  
Lei Qin ◽  
Chao Zhong
Keyword(s):  
Underwater Acoustics ◽  
Piezoelectric Composite ◽  
Spherical Cap ◽  
Wide Beam

A 300 kHz High-Frequency Underwater Transducer

2009 ◽  
Vol 79-82 ◽  
pp. 259-262
Author(s):  
Gang Wang ◽  
Lei Qin ◽  
Li Kun Wang
Keyword(s):  
High Frequency ◽  
Piezoelectric Ceramic ◽  
Ultrasonic Transducer ◽  
Piezoelectric Composite ◽  
Radial Vibration ◽  
Ceramic Tube ◽  
Acoustic Transducer ◽  
Underwater Transducer ◽  
Working Frequency ◽  
Ceramic Cylinder

A new type of piezoelectric composite ultrasonic transducer with high frequency in radial vibration is studied. A high-frequency acoustic transducer has been designed and prepared with pzt-5-type piezoelectric ceramic cylinder. When the piezoelectric ceramic cylinder vibrates along the direction of its radial direction, the working frequency is high. It is composed of a piezoelectric ceramic tube and a steel bracket which is inserted in the inner of the ceramic tube. Use the finite element method by ANSYS for analyzing the radial vibration of a piezoelectric tube. On that basis, through managing ANSYS simulation the vibration mode of transducer system is obtained, and analyzed the working frequency of transducer. According to the simulation, the high-frequency cylindrical acoustic transducer has been produced. Comparing the products and the traditional cylindrical transducers, the products haven’t only a good all-round circle directional, but it also has a high working frequency (300 kHz).

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