用1-3压电复合材料设计低旁瓣水声换能器

Design of Low Minor Lobe Underwater Sound Transducer with 1-3 Piezocomposite Ma terials

报道采用 1 - 3压电复合材料设计低旁瓣换能器的方法 ,可使单个换能器获得低于 -2 5d B的旁瓣级从而显著优化波束。该方法以 1 - 3压电复合材料为换能材料 ,在设计过程中通过控制换能器的辐射面的形状来对换能器实现窗函数加权 ,达到控制波束的目的。本文举例阐述设计方法 ,所提供的实验数据证明了本方法的工程可行性 。

The design of low minor lobe transducers with 1 3 piezocomp os ite materials is described in this paper. The beam pattern of the transducer can be optimized, the minor lobe level being under -25dB. The design is based on th e use of 1 3 piezocomposite materials, and the beam pattern of the transducer c an be controlled by controlling the shape of the transducer's radiation are thro ugh weighting. The method is expatiated with a practical example, and the meas ured data provided proves the feasibility of the method in engineering. And the performance of the transducer is compared with that of transducers of the same t ype made abroad.