Title :
Precision mechanically scanned HF ultrasound arrays
Author :
Tutwiler, R.L. ; Stitt, J.P. ; Ritter, T.A. ; Shung, K.K. ; Hackenberger, Wesley S. ; Jiang, X.N. ; Rehrig, P.W.
Author_Institution :
Appl. Res. Lab., Pennsylvania State Univ., University Park, PA, USA
Abstract :
An actuated synthetic-aperture array (ASA) system is described that is capable of overcoming the technical difficulties in manufacturing an ultrasonic phased array in the 30 to 70 MHz frequency range. The system is capable of generating images using a linear array of transducers which are of equal quality compared to a 64-element phased array while. The array was rapidly and precisely positioned with a piezoelectric actuator. The image was formed utilizing a synthetic aperture (SA) approach rather than electronic beamforming. The SA image was further refined by application of a deconvolution algorithm.
Keywords :
biomedical ultrasonics; deconvolution; piezoelectric actuators; ultrasonic transducer arrays; 30 to 70 MHz; deconvolution algorithm; electronic beamforming; high frequency ultrasound arrays; images; piezoelectric actuator; synthetic aperture array; transducer linear array; ultrasonic phased array; Frequency; Hafnium; Image generation; Manufacturing; Phased arrays; Piezoelectric actuators; Piezoelectric transducers; Ultrasonic imaging; Ultrasonic transducer arrays; Ultrasonic transducers;
Conference_Titel :
Ultrasonics, 2003 IEEE Symposium on
Print_ISBN :
0-7803-7922-5
DOI :
10.1109/ULTSYM.2003.1293538
