论文信息 - PVDF ultrasonic transducers

PVDF ultrasonic transducers

Designers of ultrasonic transducers should consider piezoelectric polyvinylidene fluoride (PVDF) films as transducer material, if broad bandwidths or focusing action are required for transducers operating in liquid couplants. By using simple bonding techniques, transducers operating in the range 1-100 MHz with plane and curved surfaces can easily be constructed. Higher sensitivity compared to a transducer consisting of a single piezoelectric film is obtained by using correlation techniques with Barker-coded multilayer versions of PVDF transducers. Moreover PVDF is opening new dimensions in the design of miniature piezoelectric hydrophones, as shown in the case of the recently developed needle hydrophone.

M. Platte

[1] M. Redwood. Transient Performance of a Piezoelectric Transducer , 1961 .

[2] Roy W. Martin,et al. Force and electrical Thevenin equivalent circuits and simulations for thickness mode piezoelectric transducers , 1975 .

[3] H. Shaw,et al. Experimental broadband ultrasonic transducers using PVF2 piezoelectric film , 1976 .

[4] N. Chubachi,et al. Confocal Pair of Concave Transducers Made of PVF2 Piezoelectric Films , 1977 .

[5] F. Foster,et al. Cylindrical transducer scatter scanner , 1980 .

[6] J. Plummer,et al. On the Generation of High-Frequency Acoustic Energy with Polyvinylidene Fluoride , 1980, IEEE Transactions on Sonics and Ultrasonics.

[7] P. A. Lewin,et al. Miniature piezoelectric polymer ultrasonic hydrophone probes , 1981 .

[8] Seymour Edelman,et al. Piezoelectric polymer probe for ultrasonic applications , 1981 .

[9] G. R. Harris,et al. Sensitivity Considerations for PVDF Hydrophones Using the Spot-Poled Membrane Design , 1982, IEEE Transactions on Sonics and Ultrasonics.

[10] G.R. Harris,et al. An Analysis of Pulsed Ultrasonic Fields as Measured by PVDF Spot-Poled Membrane Hydrophones , 1983, IEEE Transactions on Sonics and Ultrasonics.

[11] K. Sung,et al. Piezoelectric multilayer transducers for ultrasonic pulse compression , 1984 .

[12] M. Platte,et al. A polyvinylidene fluoride needle hydrophone for ultrasonic applications , 1985 .