Title :
Theoretical and experimental evaluation of a two-dimensional composite matrix array
Author :
Hall, David D N ; Hayward, Gordon ; Gorfu, Yonael
Author_Institution :
Dept. of Electron. & Electr. Eng., Strathclyde Univ., Glasgow, UK
Abstract :
A theoretical and experimental performance appraisal of a two-dimensional, ceramic-epoxy composite matrix array employing 1-3 connectivity is presented. The linear systems approach is used for temporal and spatial simulation of array performance, with specific regard to three-dimensional synthetic aperture imaging in a fluid load medium. Manufacture and experimental evaluation of a prototype array structure, operating at 1.2 MHz and comprising 100 elements arranged as a 10 by 10 matrix, is described. Close agreement between theory and experiment is obtained, providing a clear indication that the low crosstalk, uniformity, and wideband characteristics of composite array elements offer excellent prospects for such imaging applications.<>
Keywords :
acoustic arrays; acoustic imaging; biomedical ultrasonics; filled polymers; ultrasonic transducers; 1-3 connectivity; 1.2 MHz; ceramic-epoxy composite matrix array; crosstalk; fluid load medium; linear systems approach; spatial simulation; three-dimensional synthetic aperture imaging; two-dimensional composite matrix array; wideband characteristics; Acoustic imaging; Acoustic transducers; Bandwidth; Biomedical imaging; Crosstalk; Frequency; Linear systems; Manufacturing; Prototypes; Wideband;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
