Abstract
The electro-mechanical behaviour of PVDF can be described by the modified Mason equivalent circuit. It is possible to extract all necessary parameters and their frequency dependence from electrical input-impedance measurements and subsequent fitting-procedure with the computer-model. A chain-parameter matrix can readily be obtained for the equivalent circuit and matrix-multiplication enables the computation of any transfer function.References
[1] R. G. SWARTZ and J. D. PLUMMER, On the generation of high-frequency acoustic energy with polyvinylidene fuoride, IEEE Trans. on Sonics and Ultrasonics, SU-27, 6. pp. 295-303 (1980).
[2] H. R. GALLANTREE, Ultrasonic applications of PVDF transducers, The Marconi Rev., 45, 224, pp. 49-64 (1982).
[3] P. LANGEVIN, Procédé et dispositions améliorant l'efficacité des projecteurs ultrasonores piëzo-électrique, French Patent nr 622035. (1926).
[4] E. HIEDEMANN, Grundlagen und Ergebnisse der Ultraschallforschung, Walter de Gruyter and Co., p. 19, Berlin 1939.
[2] H. R. GALLANTREE, Ultrasonic applications of PVDF transducers, The Marconi Rev., 45, 224, pp. 49-64 (1982).
[3] P. LANGEVIN, Procédé et dispositions améliorant l'efficacité des projecteurs ultrasonores piëzo-électrique, French Patent nr 622035. (1926).
[4] E. HIEDEMANN, Grundlagen und Ergebnisse der Ultraschallforschung, Walter de Gruyter and Co., p. 19, Berlin 1939.
