Journal article
Experimental proof of Doppler bandwidth invariance
IEEE transactions on ultrasonics, ferroelectrics, and frequency control, v 39(2)
1992
PMID: 18263137
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
A line flow of scatterers crossing the sound field produced by a focused circular transducer at uniform velocity originates a quasi-triangular Doppler spectrum. It is known that the spectrum shape and width depend on the line flow to beam axis angle, as well as on the transducer geometry. It has recently been theoretically predicted that this spectrum width is independent of the flow line location in the sound field. Experimental verification of the new theorem, based on the use of a thread phantom operated at various orientations, ranges, and offsets, with respect to the ultrasound transducer, is presented. The tests were made with a computerized pulsed Doppler system designed to perform optimal real-time spectral analysis of data obtained in this application. The prototype system and the experimental procedure adopted for demonstrating in vitro the invariance of the Doppler spectral bandwidth are described.
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Details
- Title
- Experimental proof of Doppler bandwidth invariance
- Creators
- P Tortoli - University of FlorenceG Guidi - University of FlorenceV Mariotti - University of FlorenceV L Newhouse - Drexel University
- Publication Details
- IEEE transactions on ultrasonics, ferroelectrics, and frequency control, v 39(2)
- Publisher
- The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- [Retired Faculty]
- Web of Science ID
- WOS:A1992HV42300006
- Scopus ID
- 2-s2.0-0026835955
- Other Identifier
- 991019173892104721
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Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Acoustics
- Engineering, Electrical & Electronic