Ultrasonic transducers using radial vibrations of a piezoelectric disk

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Authors

  • Jerzy GOLANOWSKI Institute of Telecommunication and Acoustics of Wroclaw Technical University, Poland
  • Tadeusz GUDRA Institute of Telecommunication and Acoustics of Wroclaw Technical University, Poland

Abstract

Suggestions concerning the use of radial vibrations of a piezoelectric disk in ultrasonic transducers working in the frequency range below 100 kHz are presented. Experimental data from investigations of two types of transducers are given, one using axial coupling of a piezoelectric disk with a metal rod vibrating in the longitudinal mode, the other using circumferential coupling of a piezoelectric disk and a metal plate. The amplitude and phase characteristics of admittance, the resonance curves, the temperature characteristics of impedance and the resonance displacement amplitudes are presented.

References

[1] G. BŁAŻEJEWSKA, Z. FILIPOWSKI, T. GUDRA, T. WINNICKI, The method for the permeable separation of mixtures, Polish Patent Application No. P-185881.

[2] J. GOLANOWSKI, An electroacoustic transducer with directional R-L conversion, Polish Patent No. 98858.

[3] J. GOLANOWSKI, An electroacoustic transducer with directional R-L conversion, Polish Patent No. 98529,

[4] J. GOLANOWSKI, T. GUDRA, An electroacoustic transducer, Polish Patent Application No. P-201984.

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