Fabrication and performance of endoscopic ultrasound radial arrays based on PMN-PT single crystal/epoxy 1-3 composite

Dan Zhou; Kwok Fung Cheung; Yan Chen; Sien Ting Lau; Qifa Zhou; K. Kirk Shung; Hao Su Luo; Jiyan Dai; Helen Lai Wa Chan

doi:10.1109/TUFFC.2011.1825

Fabrication and performance of endoscopic ultrasound radial arrays based on PMN-PT single crystal/epoxy 1-3 composite

Dan Zhou, Kwok Fung Cheung, Yan Chen, Sien Ting Lau, Qifa Zhou, K. Kirk Shung, Hao Su Luo, Jiyan Dai, Helen Lai Wa Chan

Research output: Journal article publication › Journal article › Academic research › peer-review

67 Citations (Scopus)

Abstract

In this paper, 0.7Pb(Mg1/3Nb2/3)O3-0. 3PbTiO3(PMN-PT) single crystal/epoxy 1/3 composite was used as the active material of the endoscopic ultrasonic radial array transducer, because this composite exhibited ultrahigh electromechanical coupling coefficient (kt= 0.81%), very low mechanical quality factor (Qm= 11) and relatively low acoustic impedance (Zt= 12 MRayls). A 6.91 MHz PMN-PT/epoxy 1/3 composite radial array transducer with 64 elements was tested in a pulseecho response measurement. The -6-dB bandwidth of the composite array transducer was 102%, which was ∼30% larger than that of traditional lead zirconate titanate array transducer. The two-way insertion loss was found to be -32.3 dB. The obtained results show that this broadband array transducer is promising for acquiring high-resolution endoscopic ultrasonic images in many clinical applications.

Original language	English
Article number	5716465
Pages (from-to)	477-484
Number of pages	8
Journal	IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
Volume	58
Issue number	2
DOIs	https://doi.org/10.1109/TUFFC.2011.1825
Publication status	Published - 1 Feb 2011

Keywords

Acoustics
Couplings
Crystals
Frequency measurement
Impedance
Transducers

ASJC Scopus subject areas

Instrumentation
Acoustics and Ultrasonics
Electrical and Electronic Engineering

More information

10.1109/TUFFC.2011.1825

Cite this

Zhou, D., Cheung, K. F., Chen, Y., Lau, S. T., Zhou, Q., Shung, K. K., Luo, H. S., Dai, J., & Chan, H. L. W. (2011). Fabrication and performance of endoscopic ultrasound radial arrays based on PMN-PT single crystal/epoxy 1-3 composite. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 58(2), 477-484. Article 5716465. https://doi.org/10.1109/TUFFC.2011.1825

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Fabrication and performance of endoscopic ultrasound radial arrays based on PMN-PT single crystal/epoxy 1-3 composite. / Zhou, Dan; Cheung, Kwok Fung; Chen, Yan et al.
In: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, Vol. 58, No. 2, 5716465, 01.02.2011, p. 477-484.

Research output: Journal article publication › Journal article › Academic research › peer-review

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Fabrication and performance of endoscopic ultrasound radial arrays based on PMN-PT single crystal/epoxy 1-3 composite

Abstract

Keywords

ASJC Scopus subject areas

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