All Issue

2013 Vol.32, Issue 3 Preview Page
1.75D 초음파 트랜스듀서의 설계 및 제작
Wonseok Lee1
,
Yongrae Roh1*
이 원석1
,
노 용래1*
1경북대학교 기계공학과
*Corresponding Author
31 May 2013. pp. 199-207
PDF XML Citation
Abstract

In this paper, a 64×8 channel 1.75D ultrasonic transducer made of piezoelectric single crystals was designed, fabricated, and evaluated. First, a structure of the transducer was selected to be suitable for wiring on a planar array, and components were fabricated to correspond to the structure. Detailed structure of the transducer was designed through finite element analyses. As main performance factors, the crosstalk between neighboring elements was reduced through the control of kerf width and material, and desired frequency bandwidth of the transducer was achieved by designing the optimal thicknesses of the piezoelectric single crystal and matching layers. An experimental prototype of the transducer was fabricated following the design, and its performance was measured. Then the experimental results were compared with those of the finite element analysis, which led to the evaluation of the transducer developed in this work.

Keywords
Ultrasonic transducer
Multi-dimensional array transducer
Piezoelectric single crystal

본 논문에서는 압전단결정으로 구성된 64×8 채널 1.75D 초음파 트랜스듀서의 설계, 제작 및 평가를 하였다. 우선, 평면 배열된 독립소자에 전기적 연결이 가능한 트랜스듀서의 구조를 선정하고 구조에 맞게 구성소자를 제작하였다. 그리고 유한요소 해석을 통해 트랜스듀서의 세부 구조를 설계하였다. 트랜스듀서의 주요 성능요소로서, 치폭의 너비와 재료를 조절하여 소자간 상호간섭의 영향을 줄이고, 압전단결정 및 정합층의 최적 두께를 설계함으로써 트랜스듀서의 원하는 대역폭을 구현하였다. 설계에 맞게 트랜스듀서 시편을 제작하고 실험적으로 그 특성을 측정한 후, 그 결과를 유한요소 해석 결과와 비교함으로써 개발된 트랜스듀서의 성능을 평가하였다.

키워드
초음파 트랜스듀서
다차원 배열형 트랜스듀서
압전단결정
References
1
S. W. Smith, G. E. Trahey, and O. T. von Ramm, "Two- dimensional arrays for medical ultrasound," in Proc. IEEE Ultrason. Symp., 628-628 (1991).
2
C. M. W. Daft, D. G. Wildes, L. J. Thomas, L. S. Smith, R. S. Lewandowski, W. M. Leue, K. W. Rigby C. L. Chalek, and W. T. Hatfield, "A 1.5D transducer for medical ultrasound," in Proc. IEEE Ultrason. Symp., 1491-1495 (1994).
10.1109/ULTSYM.1994.401873
3
J. Zhang, Q. Xue, and S. Ogawa, "1.5 diemensional arrays for effective dynamic focusing and receiving," in Proc. IEEE Ultrason. Symp., 1531-1534 (1996).
4
P. Tournois, S. Calisti, Y. Doisy, J. M. Bureau, and F. Bernard, "A 128×4 channels 1.5D curved linear array for medical imaging," in Proc. IEEE Ultrason. Symp., 1331- 1335 (1996).
5
D. G. Wildes, R. Y. Chiao, C. M. W. Daft, K. W. Rigby, L. S. Smith, and K. E. Thomenius, "Elevation performance of 1.25D and 1.5D transducer arrays," IEEE Trans. Ultrason,, Ferroelect., Freq. Contr. 44, 1027-1037 (1997).
10.1109/58.655628
6
R. L. Goldberg and S. W. Smith, "Multilayer piezoelectric ceramics for two-dimensional array transducers," IEEE Trans. Ultrason,, Ferroelect., Freq. Contr. 41, 761-771 (1994).
10.1109/58.30851218263264
7
S. S. Brunke and G. R. Lockwood, "Braod-bandwidth radiation pattern of sparse two-dimensional vernier arrays," IEEE Trans. Ultrason,, Ferroelect., Freq. Contr. 44, 1101- 1109 (1997).
10.1109/58.655635
8
P. K. Weber, R. M. Schmitt, B. D. Tylkowksi, and J. Steck, "Optimization of random sparse 2-D transducer arrays for 3-D electronic beam steering and focusing," in Proc. IEEE Ultrason. Symp., 1503-1506 (1994).
10.1109/ULTSYM.1994.401875
9
R. McKeighen, "Finite element simulation and modeling of 2-D arrays for 3-D ultrasonic imaging," IEEE Trans. Ultrason,, Ferroelect., Freq. Contr. 44, 1395-1495 (1997).
10.1109/58.94974911570765
10
W. Lee and Y. Roh, "New design of the kerfs of an ultrasonic two-dimensional array transducer to minimize cross-talk," Jpn. J. Appl. Phys., 49, 07HD06, 2010.
10.1143/JJAP.49.07HD06
11
S. H. Lee and Y. R. Roh, "Characterization of all the elastic, piezoelectric and dielectric constants of tetragonal PMN-PT single crystals," Jpn. J. Appl. Phys. 46, 4462-4465 (2007).
10.1143/JJAP.46.4462
12
C. S. Desilets, J. D. Fraser, and G. S. Kino, "The design of efficient broad-band piezoelectric transducers," IEEE Trans. on Sonics and Ultrasonics 25, 115-125 (1978).
10.1109/T-SU.1978.31001
13
R. E. Davidsen and S. W. Smith, "Two-dimensional arrays for medical ultrasound using multilayer flexible circuit interconnection," IEEE Trans. Ultrason,, Ferroelect., Freq. Contr. 45, 338-.348 (1998).
10.1109/58.66014418244185
14
L. Daane and M. Greenstein, "A demountable interconnect system for a 50 X 50 ultrasonic imaging transducer array," IEEE Trans. Ultrason,, Ferroelect., Freq. Contr. 44, 978-982 (1997).
10.1109/58.655622
15
R. E. McKeighen, "Design guidelines for medical ultrasonic arrays," Proc. SPIE Int'l Symposium on Medical Imaging 3341, 2-18 (1998).
10.1117/12.307992
16
R. E. McKeighen, "Optimization of broadband transducer designs by use of statistical design of experiments," IEEE Trans. Ultrason,, Ferroelect., Freq. Contr. 43, 63-70 (1996).
10.1109/58.484464
Information
  • Publisher :The Acoustical Society of Korea
  • Publisher(Ko) :한국음향학회
  • Journal Title :The Journal of the Acoustical Society of Korea
  • Journal Title(Ko) :한국음향학회지
  • Volume : 32
  • No :3
  • Pages :199-207
  • Received Date : 2013-01-03
  • Revised Date : 2013-02-25
  • Accepted Date : 2013-03-21
  • DOI :https://doi.org/10.7776/ASK.2013.32.3.199
Journal Informaiton The Journal of the Acoustical Society of Korea The Journal of the Acoustical Society of Korea
E-Book
  • scopus_JASK
  • ESCI_JASK
  • Google scholar_JASK
  • NRF
  • KOFST
  • KISTI Current Status
  • KISTI Cited-by
  • crosscheck
  • orcid
  • ccl
Journal Informaiton Journal Informaiton - close