声纳用PVDF聚合物性能研究

R. Tancrell, D. Wilson, D. Ricketts
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引用次数: 21

摘要

对聚偏氟乙烯(PVDF)聚合物在大型声纳阵列中的应用进行了评价。对Raytheon公司生产的厚(550缸)PVDF的压电系数和弹性常数进行了测量,并介绍了测量装置。理论和实验都表明,电极沉积在聚合物表面可以使聚合物变硬,并显著改变所观察到的性能。实验水听器的自由场频率响应显示在一个很宽的频率范围内,没有假共振。实验数据表明,在相对高温(90°C)和高静压(6.9 MPa = 1000 ps 1)下具有稳定性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Properties of PVDF Polymer for Sonar
Polyvinylidene fluoride (PVDF) polymer is evaluated for application in large sonar arrays. The piezoelectric coefficients and elastic constants of thick (550 urn) PVDF produced at Raytheon are measured, and the apparatus for making the measurements is described. It is shown, both theoretically and experimentally, that electrodes deposited on the surface can stiffen the polymer and significantly alter the observed properties. The free-f ield frequency response for an experimental hydrophone is shown over a broad frequency range, f ee of spurious resonances. Stability to relatively high temperature (90°C) and to high static pressure (6.9 MPa = 1000 ps 1 are shown from experimental data.
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