Fabrication and Modeling of Matching System for Air-Coupled Transducer

Micromachines - Tập 13 Số 5 - Trang 781
Jinjie Zhou1, Jia‐qi Bai1, Yao Liu1
1School of Mechanical Engineering, North University of China, Taiyuan 030051, China

Tóm tắt

The tremendous acoustic impedance difference between the piezoelectric composite and air prevents the ultrasonic transition, resulting in low amplitude for the received signal for the composite defect detection using an air-coupled transducer. The matching system, which includes the matching layers and bonding layers attached to the piezoelectric composite, can reduce the acoustic impedance difference and benefit the acoustic transition. In this paper, the fabrication method and modeling for the matching layers are proposed to optimize the transducer performance. The effects of bonding layer material on the transducer performance are also discussed. Experiments were conducted for modeling validation. The proposed model can predict the matching layer acoustic properties with an error of less than 11%. The bonding layer using the same material as the first matching layer can help to increase the sensitivity by about 33% compared to the traditional epoxy bonding. The optimized air-coupled ultrasonic transducer, based on the results of this study, has a 1283 mV amplitude in the air, which is 56% higher than commercially available transducers, and can identify the defects in two typical non-metallic composite materials easily.

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Tài liệu tham khảo

Blomme, E., Bulcaen, D., Declercq, F., and Lust, P. (2002, January 8–11). Air-coupled ultrasonic evaluation of coated textiles. Proceedings of the Ultrasonics Symposium, Munich, Germany.

Sukmana, 2006, Surface Roughness Characterization through the Use of Diffuse Component of Scattered Air-Coupled Ultrasound, Jpn. J. Appl. Phys. Part, 45, 4534, 10.1143/JJAP.45.4534

Dang, 1995, 1-3 Piezo-Composite materials, Appl. Acoust., 14, 2

Zhang, 2011, Fabrication of angle beam two-element ultrasonic transducers with PMN-PT single crystal and PMN-PT/epoxy 1-3 composite for NDE applications, Sens. Actuators Phys., 168, 223, 10.1016/j.sna.2011.04.004

Zhu, 2008, Nano-structured TiO2 film fabricated atroom temperature and its acoustic properties, J. Phys. D-Appl. Phys., 41, 162001, 10.1088/0022-3727/41/16/162001

Ye, 2015, Research on the Transducer’s Matching Layer Parameters Optimization, Yadian Yu Shengguang/Piezoelectrics Acoustooptics, 37, 368

Toda, 2002, New type of matching layer for air-coupled ultrasonic transducers, IEEE Trans. Ultrason. Ferroelectr. Freq. Control., 49, 972, 10.1109/TUFFC.2002.1020167

Kelly, 2004, Characterization and assessment of an integrated matching layer for air-coupled ultrasonic applications, IEEE Trans. Ultrason. Ferroelectr. Freq. Control., 51, 1314, 10.1109/TUFFC.2004.1350960

2004, Acoustic impedance matching of piezoelectric transducers to the air, IEEE Trans. Ultrason. Ferroelectr. Freq. Control., 51, 624, 10.1109/TUFFC.2004.1320834

2013, Air-Coupled Piezoelectric Transducers with Active Polypropylene Foam Matching Layers, Sensors, 13, 5996, 10.3390/s130505996

Saito, 2006, P2-3 Experimental Study on Intermediumte Layer for Air-Coupled Ultrasonic Transducer with (0–3) Composite Materials(Poster session 2), Proc. Symp. Ultrason. Electron., 27, 213

Bovtun, 2007, Ferroelectret non-contact ultrasonic transducers, Appl. Phys. A, 88, 737, 10.1007/s00339-007-4060-3

Rymantas, 2017, Air-Coupled Low Frequency Ultrasonic Transducers and Arrays with PMN-32%PT Piezoelectric Crystals, Sensors, 17, 95, 10.3390/s17010095

Kazys, 2015, Air-Coupled Ultrasonic Transducers Based on an Application of the PMN-32%PT Single Crystals, Ferroelectrics, 480, 85, 10.1080/00150193.2015.1012458

Guo, 2021, Design parameters and modal optimization of radial vibration matching layer transducer, Diam. Abras. Eng., 41, 68

Wang, 2018, Investigation of a multi-element focused air-coupled transducer, AIP Adv., 8, 095010, 10.1063/1.5045698

Wu, 2021, Investigation of an air-coupled transducer with a closed-cell material matching strategy and an optimization design considering the electrical input impedance, Ultrasonics, 115, 106477, 10.1016/j.ultras.2021.106477

Song, 2021, Acoustic Metasurfaces for Efficienr Matching of Non-contact Ultrasonic Transducers, Smart Mater. Struct., 30, 085011, 10.1088/1361-665X/ac085a

Feng, R. (2001). Ultrasonic Handbook, Nanjing University Press.

Bian, 2016, Air-coupled 1-3 connectivity composite piezoelectric ultrasonic transducers, Tech. Acoust., 35, 717

Rose, J.L. (2014). Ultrasonic Guided Waves in Solid Medium, Cambridge University Press.

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