High frequency PMN-PT single crystal focusing transducer fabricated by a mechanical dimpling technique

被引：21

作者：

Chen, Y. ^{[1
,2
]}

Lam, K. H. ^{[1
,2
]}

Zhou, D. ^{[1
,2
]}

Cheng, W. F. ^{[1
,2
]}

Dai, J. Y. ^{[1
,2
]}

Luo, H. S. ^{[3
]}

Chan, H. L. W. ^{[1
,2
]}

机构：

[1] Hong Kong Polytech Univ, Dept Appl Phys, Hong Kong, Hong Kong, Peoples R China

[2] Hong Kong Polytech Univ, Mat Res Ctr, Hong Kong, Hong Kong, Peoples R China

[3] Chinese Acad Sci, Shanghai Inst Ceram, Informat Mat & Devices Res Ctr, Shanghai 201800, Peoples R China

来源：

ULTRASONICS | 2013年 / 53卷 / 02期

关键词：

PMN-PT single crystal; High frequency; Focusing ultrasound transducer; DESIGN;

D O I：

10.1016/j.ultras.2012.06.017

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

High frequency (similar to 30 MHz and similar to 80 MHz) focusing ultrasound transducers were fabricated using a PMN-0.28PT single crystal by a mechanical dimpling technique. The dimpled single crystal was used as an active element for the focusing transducer. Compared with a plane transducer, the focusing transducer fabricated with a dimpled active element exhibits much broader bandwidth and higher sensitivity. Besides, a high quality image can be obtained by the 30 MHz focusing transducer, in which the -6 dB axial and lateral resolution is 27 mu m and 139 mu m, respectively. These results prove that the dimpling technique is capable to fabricate the high frequency focusing transducers with excellent performance for imaging applications. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：345 / 349

页数：5

共 24 条

[1]

Cannata JM, 2000, ULTRASON, P1129, DOI 10.1109/ULTSYM.2000.921524

[2] Demonstration of Second-Harmonic IVUS Feasibility with Focused Broadband Miniature Transducers [J].

Chandrana, Chaitanya ;

Kharin, Nikolay ;

Vince, Geoffrey D. ;

Roy, Shuvo ;

Fleischman, Aaron J. .

IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 2010, 57 (05) :1077-1085

[3]

Chen H, 2005, ULTRASON, P235

[4] High-Frequency Ultrasonic Transducer Fabricated With Lead-Free Piezoelectric Single Crystal [J].

Chen, Yan ;

Jiang, Xiang Ping ;

Luo, Hao Su ;

Dai, Ji Yan ;

Chan, Helen L. W. .

IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 2010, 57 (11) :2601-2604

[5] Broadband Poly(vinylidene fluoride-trifluoroethylene) Ultrasound Focusing Transducers for Determining Elastic Constants of Coating Materials [J].

Chung, Cheng-Hsien ;

Lee, Yung-Chun .

JOURNAL OF NONDESTRUCTIVE EVALUATION, 2009, 28 (3-4) :101-110

[6] PMN-PT single-crystal transducer for non-destructive evaluation [J].

Edwards, G. ;

Chan, H. L. W. ;

Batten, A. ;

Lam, K. H. ;

Luo, H. S. ;

Scott, D. A. .

SENSORS AND ACTUATORS A-PHYSICAL, 2006, 132 (02) :434-440

[7]

Erikson K. R., 1981, J. Ultrasound Med., V1, P1

[8] Advances in ultrasound biomicroscopy [J].

Foster, FS ;

Pavlin, CJ ;

Harasiewicz, KA ;

Christopher, DA ;

Turnbull, DH .

ULTRASOUND IN MEDICINE AND BIOLOGY, 2000, 26 (01) :1-27

[9] PRINCIPLES AND APPLICATIONS OF ULTRASOUND BACKSCATTER MICROSCOPY [J].

FOSTER, FS ;

PAVLIN, CJ ;

LOCKWOOD, GR ;

RYAN, LK ;

HARASIEWICZ, KA ;

BERUBE, L ;

RAUTH, AM .

IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 1993, 40 (05) :608-617

[10] Energy-based adaptive focusing of waves: Application to ultrasonic imaging and therapy [J].

Herbert, Eric ;

Pernot, Mathieu ;

Larrat, Benoit ;

Montaldo, Gabriel ;

Tanter, Mickael ;

Fink, Mathias .

2008 IEEE ULTRASONICS SYMPOSIUM, VOLS 1-4 AND APPENDIX, 2008, :875-878

← 1 2 3 →