Design and Validation of an Orthotropic Piezoelectric Composite Material Phased Array Sensor Used to Nondestructive Detection

2015 ◽  
Vol 13 (10) ◽  
pp. 852-856 ◽  
Author(s):  
Ziping Wang ◽  
Ying Luo ◽  
Tiger Sun
Keyword(s):  
Composite Material ◽  
Phased Array ◽  
Piezoelectric Composite ◽  
Nondestructive Detection ◽  
Array Sensor

scholarly journals PIN-PMN-PT Single Crystal 1-3 Composite-based 20 MHz Ultrasound Phased Array

Micromachines ◽  
2020 ◽  
Vol 11 (5) ◽  
pp. 524
Author(s):  
Wei Zhou ◽  
Tao Zhang ◽  
Jun Ou-Yang ◽  
Xiaofei Yang ◽  
Dawei Wu ◽  
...  
Keyword(s):  
Composite Material ◽  
Single Crystal ◽  
Insertion Loss ◽  
Acoustic Impedance ◽  
High Frequency ◽  
Phased Array ◽  
Phased Arrays ◽  
Piezoelectric Composite ◽  
Fractional Bandwidth ◽  
Central Frequency

Based on a modified dice-and-fill technique, a PIN-PMN-PT single crystal 1-3 composite with the kerf of 12 μm and pitch of 50 μm was prepared. The as-made piezoelectric composite material behaved with high piezoelectric constant (d33 = 1500 pC/N), high electromechanical coefficient (kt = 0.81), and low acoustic impedance (16.2 Mrayls). Using lithography and flexible circuit method, a 48-element phased array was successfully fabricated from such a piezoelectric composite. The array element was measured to have a central frequency of 20 MHz and a fractional bandwidth of approximately 77% at −6 dB. Of particular significance was that this PIN-PMN-PT single crystal 1-3 composite-based phased array exhibits a superior insertion loss compared with PMN-PT single crystal and PZT-5H-based 20 MHz phased arrays. The focusing and steering capabilities of the obtained phased array were demonstrated theoretically and experimentally. These promising results indicate that the PIN-PMN-PT single crystal 1-3 composite-based high frequency phased array is a good candidate for ultrasound imaging applications.

scholarly journals PIN-PMN-PT Single Crystal 1-3 Composite based 20 MHz Ultrasound Phased Array

2019 ◽  
Author(s):  
Tao Zhang ◽  
Dawei Wu ◽  
Jun Ou-Yang ◽  
Xiaofei Yang ◽  
Benpeng Zhu
Keyword(s):  
Composite Material ◽  
Single Crystal ◽  
Insertion Loss ◽  
Acoustic Impedance ◽  
High Frequency ◽  
Phased Array ◽  
Phased Arrays ◽  
Piezoelectric Composite ◽  
Fractional Bandwidth ◽  
Central Frequency

Based on a modified dice-and-fill technique, a PIN-PMN-PT single crystal 1-3 composite with the kerf of 12μm and pitch of 50μm was prepared. The as-made piezoelectric composite material behaved high piezoelectric constant (d33=1500 pC/N), high electromechanical coefficient (kt=0.81) and low acoustic impedance (16.2 Mrayls). Using lithography and flexible circuit method, a 48-element phased array was successfully fabricated from such piezoelectric composite. The array element was measured to have a central frequency of 20MHz and a fractional bandwidth of approximately 77% at -6dB. Of particular significance was that this PIN-PMN-PT single crystal 1-3 composite based phased array exhibits a superior insertion loss compared with PMN-PT single crystal and PZT-5H based 20 MHz phased arrays. The focusing and steering capabilities of such phased array were validated through Field II simulations. These promising results suggest that the PIN-PMN-PT single crystal 1-3 composite based high frequency phased array is a good candidate for ultrasound imaging applications.

Ultra-low temperature curable nano-silver conductive adhesive for piezoelectric composite material

2018 ◽  
Vol 529 ◽  
pp. 9-15 ◽  
Author(s):  
Chao Yan ◽  
Qingwei Liao ◽  
Xingli Zhou ◽  
Likun Wang ◽  
Chao Zhong ◽  
...  
Keyword(s):  
Composite Material ◽  
Low Temperature ◽  
Conductive Adhesive ◽  
Piezoelectric Composite ◽  
Nano Silver

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.

A Study of Phased Array Ultrasonic Velocity Profile Monitor for Flow Rate Measurement

2013 ◽  
Author(s):  
Takuya Fukumoto ◽  
Keisuke Tsukada ◽  
Tomonori Ihara ◽  
Nobuyoshi Tsuzuki ◽  
Hiroshige Kikura
Keyword(s):  
Velocity Profile ◽  
Ultrasonic Velocity ◽  
Flow Rate ◽  
Measurement System ◽  
Phased Array ◽  
Profile Measurement ◽  
Multiple Reflections ◽  
Horizontal Pipe ◽  
Array Sensor ◽  
Velocity Profile Measurement

A new ultrasonic velocity profile measurement system with a phased array sensor was developed for accurate flow rate measurements. This measurement system employs phased array technique to reduce noise from multiple reflections which occurs in a wedge. However, phased array technique has some difficulties — one of them is about grading lobes. Thus, the array sensor was designed to reduce the grading lobes using simple calculations. Performance of the manufactured array sensor was evaluated by experimental measurements of sound pressure distribution emitted from the array sensor, and optimal parameters to control the array sensor were obtained. Hardware and software of the ultrasonic velocity profile measurement system with a phased array sensor were also developed. The software is based on ultrasonic Doppler method. Velocity profiles of horizontal pipe flow were measured using the developed system, and the availability of the system applying a phased array sensor was confirmed.

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