PVDF ultrasonic probes for microsonography

G. Lypacewicz , Andrzej Nowicki , Tadeusz Pałko

Abstract

The purpose of the work was to design a high frequency ultrasonic probe with PVDF foil. The constructed probe was analysed by modified Mason's computer model and validated experimentally. The coaxial cable, the compensating circuit, the transmitter and receiver impedances as well as the acoustical loading of the back transducer surface were taken into account. The result of study show that the overall sensitivity increases when the inductance in series compensating the clamped capacitance C-0 is applied and that the frequency of the transfer function maximum becomes twice lower than the transducer resonance frequency if the back transducer surface is loaded with a material of a high acoustical impedance.
Author G. Lypacewicz
G. Lypacewicz,,
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, Andrzej Nowicki
Andrzej Nowicki,,
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, Tadeusz Pałko (FM / IMBE)
Tadeusz Pałko,,
- The Institute of Metrology and Biomedical Engineering
Pages206-212
Publication size in sheets0.5
Book Jankiewicz Zdzisław, Madura H. (eds.): Optoelectronic and Electronic Sensors II, 1997, SPIE, PO Box 10, Bellingham WA 98227-0010, SPIE, ISBN 0-8194-2469-2
Keywords in Englishultrasonic; transducers; ultrasonography; PVDF foil
DOIDOI:10.1117/12.266711
URL http://proceedings.spiedigitallibrary.org/volume.aspx?conferenceid=1847&volumeid=4957
Languageen angielski
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