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

Volume

1

fYear

2003

Firstpage

873

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics, 2003 IEEE Symposium on

Print_ISBN

0-7803-7922-5

Type

conf

DOI

10.1109/ULTSYM.2003.1293538

Filename

1293538