HYDROACOUSTICS
ANNUAL JOURNAL |
START | NEW VOL 20 | SEARCH | STATISTICS | PAS - GDANSK DIVISION |
pp. 165-170, vol. 14, 2011 Marek Moszynski Gdansk University of Technology, Gdansk, Poland Waldemar Lis Gdansk University of Technology, Gdansk, Poland Key words: piezoceramic circular disc transducer; Bessel functions; TVR; source level Abstract: The paper presents novel network equivalent circuit of piezoceramic circular disc transducer that takes into account thickness and radial mode of vibrations. The starting point
of the analysis is 4-port description of circular disc element representing the solution of wave
equation set in radial and thickness directions. The approximate solution for harmonic case is
represented in the form of 4x4 matrix, which is synthesized and implemented in circuit
analysis software. The network is extended with acoustical port that allows for pressure
calculations in the similar manner as when measuring echo-sounder transmitting and
receiving parameters. The model is especially useful for simulating complete electronic
circuit of dual frequency echo-sounders based on single circular disc transducer.
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