Ramesh R, Prasad C Durga, Kumar T K Vinod, Gavane L A, Vishnubhatla R M R
Naval Physical and Oceanographic Laboratory, Cochin 682 021, India.
Ultrasonics. 2006 Nov;44(4):341-9. doi: 10.1016/j.ultras.2006.02.001. Epub 2006 Feb 28.
Finite element modelling (FEM) using ATILA code and experimental studies have been carried out on 1-3 piezocomposite transducers. FEM study was initially carried out on a piezocomposite infinite plate and then extended to transducers of finite size. The infinite-plate model results agree well with that of a simple analytical model and experiments. The acoustic performance of multi-layer finite-size piezocomposite transducers was also studied. Transducer stacks were fabricated with different number of layers. The transducer characteristics such as the electrical impedance, the transmitting voltage response (TVR) and the receiving sensitivity (RS) of the 1-3 piezocomposite transducers were evaluated as functions of frequency, ceramic volume fractions and the number of layers. TVR increases and RS decreases with increase in ceramic volume fractions. The model results are found to agree with the experimental data, especially when the number of layers is less.
已使用ATILA代码对1-3型压电复合换能器进行了有限元建模（FEM）和实验研究。有限元建模研究最初是在压电复合无限板上进行的，然后扩展到有限尺寸的换能器。无限板模型结果与简单解析模型和实验结果吻合良好。还研究了多层有限尺寸压电复合换能器的声学性能。制作了具有不同层数的换能器叠层。评估了1-3型压电复合换能器的电阻抗、发射电压响应（TVR）和接收灵敏度（RS）等换能器特性随频率、陶瓷体积分数和层数的变化情况。随着陶瓷体积分数的增加，发射电压响应增大而接收灵敏度降低。发现模型结果与实验数据相符，尤其是在层数较少时。
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