Micromachined High-Frequency Ultrasound 2-Dimensional Array Transducer

被引:0
|
作者
Liu, C. G. [1 ]
Zheng, F. [2 ]
Chen, R. M. [2 ]
Ma, T. [2 ]
Djuth, F. T. [1 ]
Zhou, Q. F. [2 ]
Shung, K. K. [2 ]
机构
[1] Geospace Res Inc, El Segundo, CA 90245 USA
[2] Univ Southern Calif, Dept Biomed Engn, Los Angeles, CA USA
关键词
D O I
10.1109/ULTSYM.2013.0203
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
Micromachining techniques have been developed and applied in fabricating high frequency piezoelectric composite 2-dimensional ultrasound array transducers. The array has 256 elements with the size of 105 mu m by 105 mu m. The kerf between elements is 5 mu m. The center frequency is 52 MHz with the -6 dB bandwidth of 58%. As many as 98% elements are working. The pulse-echo responses have been measured with the testing system.
引用
收藏
页码:781 / 784
页数:4
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