Journal article
PVDF transducers-a performance comparison of single-layer and multilayer structures
IEEE transactions on ultrasonics, ferroelectrics, and frequency control, v 44(5), pp 1148-1156
Sep 1997
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
To improve the pulse-echo sensitivity of a piezopolymer transducer while preserving its broad bandwidth property, several multilayer transducer design approaches have been suggested. This paper presents formulae derived to describe three types of multilayer transducers: a folded multilayer-, Barker-coded, multilayer-, and switchable Barker-coded multilayer transducer. The pulse-echo responses of the multilayer transducers under various excitation signals were calculated and compared with those achievable with an equivalent PZT transducer. Also, the influence of a tissue layer on the transducer responses was examined. The simulation results indicated that the switchable Barker coded transducer design outperforms all other transducer designs analyzed with respect to the axial resolution and overall sensitivity in the medical imaging frequency range. To verify the simulation results, several prototypes of multilayer Barker coded transducers were fabricated and tested in water. A good agreement between the experimental results and the corresponding computer predictions was achieved.
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Details
- Title
- PVDF transducers-a performance comparison of single-layer and multilayer structures
- Creators
- Qian Zhang - Drexel UniversityP.A Lewin - Drexel UniversityP.E Bloomfield - Drexel University
- Publication Details
- IEEE transactions on ultrasonics, ferroelectrics, and frequency control, v 44(5), pp 1148-1156
- Publisher
- IEEE
- Number of pages
- 9
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- School of Biomedical Engineering, Science, and Health Systems
- Web of Science ID
- WOS:A1997XV18900022
- Scopus ID
- 2-s2.0-0031237352
- Other Identifier
- 991014877798404721
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InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Acoustics
- Engineering, Electrical & Electronic