Conference proceeding
The effect of polarization gradient on the frequency response of PVDF polymer transducers
IEEE 1992 Ultrasonics Symposium Proceedings, v 1992-, pp 599-602 vol.1
1992
Abstract
The performance of spot-poled polyvinylidene fluoride (PVDF) membrane hydrophones is examined. It is found that the sensitivity of the hydrophone is markedly dependent on the spatial polarization distribution. Experimental data show there can be a significant difference between the voltage sensitivities measured in the same hydrophone probe depending on which electrode is actually facing the acoustic source. The measurements carried out in the frequency range of 1-20 MHz indicate that this difference, while negligible below 2 MHz, may exceed 1.6 dB at higher frequencies. The theoretical model allowing characteristics of the membrane hydrophone probe to be predicted is developed and experimentally verified. The results indicate that, in critical applications such as the quantitative field measurements or ultrasonic dosimetry, the electrode exposed to the ultrasound source should be carefully identified.< >
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Details
- Title
- The effect of polarization gradient on the frequency response of PVDF polymer transducers
- Creators
- B Fay - Physikalisch-Technische BundesanstaltP.A LewinG LudwigG.M SesslerG Yang
- Publication Details
- IEEE 1992 Ultrasonics Symposium Proceedings, v 1992-, pp 599-602 vol.1
- Publisher
- IEEE
- Resource Type
- Conference proceeding
- Language
- English
- Academic Unit
- School of Biomedical Engineering, Science, and Health Systems; Mathematics
- Web of Science ID
- WOS:A1992BY55S00118
- Scopus ID
- 2-s2.0-85067029861
- Other Identifier
- 991019173753104721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Acoustics
- Engineering, Electrical & Electronic