Title :
A new miniaturized ultrasonic circular array for 360° scanning in endosonography
Author :
Schwarz, H.-P. ; Welsch, H.J. ; Becker, P. ; Biebinger, M. ; Schmitt, R.M.
Author_Institution :
Fraunhofer-Inst. for NDT, Saarland Univ., St. Ingbert, West Germany
Abstract :
An ultrasonic array for endoscopic application in medicine and nondestructive testing is described. The device is a circular array consisting of more than 80 strip elements. The diameter of the array is 10 mm. The frequency is about 5-7.5 MHz. Principles of the circular array and calculation of the broadband sound field are discussed. The construction of the probe, which is made of a piezoceramic tube mounted on a ceramic cylinder and diced into small elements, is described
Keywords :
acoustic imaging; biomedical ultrasonics; nondestructive testing; probes; ultrasonic equipment; 10 mm; 360° scanning; 5 to 7.5 MHz; NDT; broadband sound field; ceramic cylinder; endosonography; miniaturized ultrasonic circular array; nondestructive testing; piezoceramic tube; strip elements; Acoustic beams; Biomedical imaging; Engine cylinders; Engineering in medicine and biology; Focusing; Frequency; Medical diagnostic imaging; Phased arrays; Probes; Structural beams;
Conference_Titel :
Engineering in Medicine and Biology Society, 1989. Images of the Twenty-First Century., Proceedings of the Annual International Conference of the IEEE Engineering in
Conference_Location :
Seattle, WA
DOI :
10.1109/IEMBS.1989.95806
