宽带宽波束高频换能器的设计与制备

IF 1.3 4区物理与天体物理 Q4 PHYSICS, CONDENSED MATTER

Ferroelectrics Letters Section Pub Date : 2020-01-24 DOI:10.1080/07315171.2020.1799630

Chao Zhong, L. Qin, Likun Wang

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引用次数: 2

摘要

为了提高高频换能器的带宽和波束宽度，研制了一种压电复合材料换能器。为了扩大波束宽度，将压电复合材料设计成弧形，并采用匹配层技术增加波束宽度。利用声场理论得到了声场的指向性函数。采用四分之一波长模型计算了匹配层的参数。然后详细介绍了一种新型电弧1-3压电复合材料的制备工艺。最后，对电弧1-3压电复合材料和换能器进行了制备和测试。换能器的带宽和波束宽度分别达到100 kHz和123°。实验结果表明，所设计的换能器实现了宽带和宽波束的目标。

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Design and preparation of high-frequency transducer with broadband and wide-beam properties

Abstract A piezoelectric composite transducer was developed in this study to improve the bandwidth and beamwidth of the high-frequency transducer. The piezocomposite was designed as arc-shaped to expand the beamwidth, and the matching layer technique was adopted to increase the bandwidth. The directivity function was obtained by the acoustic field theory. The parameters of the matching layer were also calculated using the quarter-wavelength model. Then, a novel preparation process of arc 1–3 piezoelectric composite was given in detail. Finally, the arc 1–3 piezocomposite and transducer were prepared and tested. The bandwidth and beamwidth of the transducer reach 100 kHz and 123°, respectively. Experimental results show that the designed transducer realizes the aims of broadband and wide-beam.

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来源期刊

Ferroelectrics Letters Section 物理-物理：凝聚态物理

CiteScore

1.10

自引率

0.00%

发文量

审稿时长

4.8 months

期刊介绍： Ferroelectrics Letters is a separately published section of the international journal Ferroelectrics. Both sections publish theoretical, experimental and applied papers on ferroelectrics and related materials, including ferroelastics, ferroelectric ferromagnetics, electrooptics, piezoelectrics, pyroelectrics, nonlinear dielectrics, polymers and liquid crystals. Ferroelectrics Letters permits the rapid publication of important, quality, short original papers on the theory, synthesis, properties and applications of ferroelectrics and related materials.