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Investigation on piezoelectric helix for use as a hydrophone

机译:用于水听器的压电螺旋的研究

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The piezoelectric helical spring is analyzed for use as anhydrophone. Because the polarity in the helix is arranged parallel tonthe electrode planes, the shear mode, g15 can perform thenelastoelectric conversion without any undesired couplings undernhydrostatic condition. In this paper, the structural effects are modelednusing the concept of stress amplifier. The gain factor, G, is defined asnthe ratio of the average stress in the piezoceramic to the detectednpressure and, therefore, provides a G-fold increase in voltagenresponsivity. In addition, a solution for increasing the capacitancenwhile maintaining the sensitivity is proposed. Numerical results showingnhigh hydrostatic responsivities are given
机译:分析了压电螺旋弹簧以用作水听器。因为螺旋中的极性与电极平面平行排列,所以剪切模式g15可以在静水压条件下进行弹性转换,而不会发生任何不希望的耦合。本文利用应力放大器的概念对结构效应进行建模。增益因子G定义为压电陶瓷中平均应力与检测到的n压力之比,因此,电压响应度增加了G倍。另外,提出了一种在保持灵敏度的同时增加电容的解决方案。数值结果表明了高静液压响应性

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