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Design and analysis of a broadband class VII flextensional transducer with the third-generation crystal, Mn:PIN-PMN-PT
Sensors and Actuators A: Physical ( IF 4.6 ) Pub Date : 2022-07-30 , DOI: 10.1016/j.sna.2022.113777
Jia Zheng , Shiyang Li , Bin Wang

For designing flextensional transducers (FTs), driving material is an important innovation direction to improve performance. The third-generation single crystal: manganese-modified Pb(In1/2Nb1/2)O3-Pb(Mg1/3Nb2/3)O3-PbTiO3 (Mn:PIN-PMN-PT) has superior piezoelectric and electromechanical properties. However, up to date, Mn:PIN-PMN-PT single crystals applied to practical FTs haven’t been reported in the literature. In this paper, a broadband class VII FT based on [001]C poled Mn:PIN-PMN-PT is proposed. To fully utilize the excellent properties of Mn:PIN-PMN-PT, the structural parameters of the transducer were designed and optimized using the finite element method (FEM). Prototypes were fabricated and measured. Compared with the PZT-4 class VII FT, the bandwidth of the Mn:PIN-PMN-PT FT increased by 27.8%, and the transmitting voltage response (TVR) was 6.3 dB higher. This work verifies that Mn:PIN-PMN-PT single crystals have great potential as the driving material for broadband high-power FTs.



中文翻译:

采用第三代晶体Mn:PIN-PMN-PT的宽带VII类弯张换能器的设计与分析

对于设计弯张换能器 (FT),驱动材料是提高性能的重要创新方向。第三代单晶:锰改性Pb(In 1/2 Nb 1/2 )O 3 -Pb(Mg 1/3 Nb 2/3 )O 3 -PbTiO 3 (Mn:PIN-PMN-PT)有优越的压电和机电性能。然而,迄今为止,文献中尚未报道应用于实际 FT 的 Mn:PIN-PMN-PT 单晶。本文提出了一种基于[001] C的宽带VII类FT提出了极化 Mn:PIN-PMN-PT。为充分利用Mn:PIN-PMN-PT的优良特性,采用有限元法(FEM)对换能器的结构参数进行了设计和优化。原型被制造和测量。与 PZT-4 class VII FT 相比,Mn:PIN-PMN-PT FT 的带宽提高了 27.8%,发射电压响应 (TVR) 提高了 6.3 dB。这项工作验证了 Mn:PIN-PMN-PT 单晶作为宽带高功率 FT 的驱动材料具有巨大的潜力。

更新日期:2022-07-30
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