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http://dx.doi.org/10.7776/ASK.2013.32.5.393

Design and Fabrication of a 2D Array Ultrasonic Transducer  

Lee, Wonseok (경북대학교 기계공학과)
Woo, Jeongdong (경북대학교 기계공학과)
Roh, Yongrae (경북대학교 기계공학과)
Publication Information
The Journal of the Acoustical Society of Korea / v.32, no.5, 2013 , pp. 393-401 More about this Journal
Abstract
In this paper, a $48{\times}64$ channel 2D array ultrasonic transducer with piezoelectric single crystals was designed, fabricated, and evaluated. Structure of the transducer was chosen to facilitate the electric connection on the planar array, and then components were fabricated in accordance with the structure. Detailed structure of the transducer was designed through finite element analyses. In order to improve the performance of the transducer, the crosstalk between adjacent elements was reduced through the control of kerf width and material, and the target frequency bandwidth was achieved through optimal design of the thickness of the single crystal and matching layers. After fabricating a prototype of the transducer according to the design and measuring its characteristics, the results were compared with those of finite element analyses to evaluate the performance of the developed transducer.
Keywords
Ultrasonic transducer; 2D array transducer; Piezoelectric single crystal;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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