Translator Disclaimer
28 April 2004 Development of a high frequency (35-MHz) linear ultrasonic array
Author Affiliations +
Abstract
Methods for fabricating and modeling of a high frequency linear ultrasonic array are presented. This array was designed primarily for human eye imaging, and features elements mechanically diced out of a fine grain high density PZT-5H ceramic. Array elements were spaced with a 50 micron pitch, interconnected via a flexible circuit and matched to the 50 Ohm system electronics via a 85 Ohm transmission line coaxial cable. The current array design was based upon tradeoffs between the time domain response bandwidth sensitivity, as well as, the level of array encapsulation and suppression acoustic crosstalk. A prototype four element array was constructed with promising results. An average center frequency of 34 MHz with a -6 dB bandwidth of at least 45% per element was achieved with a 20 dB pulse length of 105 ns. The array performance was compared to a time domain finite element analysis program and excellent agreement between theory and experiment was achieved.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jonathan M. Cannata and K. Kirk Shung "Development of a high frequency (35-MHz) linear ultrasonic array", Proc. SPIE 5373, Medical Imaging 2004: Ultrasonic Imaging and Signal Processing, (28 April 2004); https://doi.org/10.1117/12.537062
PROCEEDINGS
6 PAGES


SHARE
Advertisement
Advertisement
RELATED CONTENT

Angioplasty under ultrasound?
Proceedings of SPIE (June 30 1990)
35-MHz linear array for medical imaging
Proceedings of SPIE (April 10 2002)
Design guidelines for medical ultrasonic arrays
Proceedings of SPIE (April 30 1998)
High-frequency transducer arrays for medical imaging
Proceedings of SPIE (April 11 2000)

Back to Top