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Proceedings Paper

Higher order diffracting-grating transducers
Author(s): David H. R. Vilkomerson; Thomas Chilipka; David Lyons
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Paper Abstract

A new method of blood-flow measurement requires construction of transducers that act like diffraction gratings, producing beams at variable angles as a function of the signals driving them. A new transducer structure that eases fabrication and operation of such transducers is presented and its operation experimentally verified. This transducer is called a higher-order diffracting-grating transducer because, like a higher-order optical diffraction grating, the periodicity of its elements is based on a multiple number of wavelengths. The theory and experimental results for this new transducer structure are shown to agree.

Paper Details

Date Published: 10 April 1997
PDF: 7 pages
Proc. SPIE 3037, Medical Imaging 1997: Ultrasonic Transducer Engineering, (10 April 1997); doi: 10.1117/12.271332
Show Author Affiliations
David H. R. Vilkomerson, EchoCath, Inc. (United States)
Thomas Chilipka, EchoCath, Inc. (United States)
David Lyons, EchoCath, Inc. (United States)

Published in SPIE Proceedings Vol. 3037:
Medical Imaging 1997: Ultrasonic Transducer Engineering
K. Kirk Shung, Editor(s)

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