Journal article
Wide-band piezoelectric polymer acoustic sources
IEEE transactions on ultrasonics, ferroelectrics, and frequency control, v 35(2), pp 175-185
Mar 1988
PMID: 18290144
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
The design of a wideband acoustic source made of the piezoelectric polymer polyvinylidine fluoride (PVDF) is described. The source was developed for the characterization and absolute calibration of ultrasonic hydrophone probes. Construction details are described and performance characteristics of the wideband PVDF transmitter, including its transmitting voltage response and directivity patterns, are compared with theoretical predictions in the frequency range up to 40 MHz. The Krimholtz-Leedom-Mattaei (KLM) model was used to examine the influence of the PVDF polymer film thickness, the backing acoustic impedance, the cable length, and the electrical source resistance on overall transmit transfer characteristics. A comparison is made with traditional piezoelectric ceramic acoustic sources, and it is shown that piezopolymer transmitters exhibit some improved properties and are well suited for certain ultrasound dosimetry applications. In particular, the polymer sources have been found useful in measurements based on swept-frequency excitation. Those measurements allow characterization of transmitters and receivers to be performed as a virtually continuous function of frequency.
Metrics
Details
- Title
- Wide-band piezoelectric polymer acoustic sources
- Creators
- P.A Lewin - Drexel UniversityM.E Schafer - Sonic Technologies (United States, Horsham)
- Publication Details
- IEEE transactions on ultrasonics, ferroelectrics, and frequency control, v 35(2), pp 175-185
- Publisher
- IEEE
- Number of pages
- 11
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- School of Biomedical Engineering, Science, and Health Systems
- Web of Science ID
- WOS:A1988M908600011
- Scopus ID
- 2-s2.0-0023982186
- Other Identifier
- 991019173860304721
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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