Method for Enhancing Electromechanical Coupling Efficiency of Multistage Piezoelectric Ceramic Transducers

Yingxuan He

doi:10.47297/taposatWSP2633-456911.20260704

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Method for Enhancing Electromechanical Coupling Efficiency of Multistage Piezoelectric Ceramic Transducers

7卷第4期

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Method for Enhancing Electromechanical Coupling Efficiency of Multistage Piezoelectric Ceramic Transducers
Method for Enhancing Electromechanical Coupling Efficiency of Multistage Piezoelectric Ceramic Transducers
College of Science, China Jiliang University, Hangzhou, Zhejiang, 310018, China
2026年7卷第4期页码：67-70
纸质出版：2026-04-30
DOI：10.47297/taposatWSP2633-456911.20260704
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Yingxuan He. (2026). Method for Enhancing Electromechanical Coupling Efficiency of Multistage Piezoelectric Ceramic Transducers. 科技理论与实践（英文版）, 7(4), 67-70.

He Yingxuan.Method for Enhancing Electromechanical Coupling Efficiency of Multistage Piezoelectric Ceramic Transducers[J].Theory and Practice of Science and Technology,2026,07(04):67-70.
Yingxuan He. (2026). Method for Enhancing Electromechanical Coupling Efficiency of Multistage Piezoelectric Ceramic Transducers. 科技理论与实践（英文版）, 7(4), 67-70. DOI： 10.47297/taposatWSP2633-456911.20260704.

He Yingxuan.Method for Enhancing Electromechanical Coupling Efficiency of Multistage Piezoelectric Ceramic Transducers[J].Theory and Practice of Science and Technology,2026,07(04):67-70. DOI： 10.47297/taposatWSP2633-456911.20260704.

摘要

Abstract

To address the issues of modal mismatch between different levels of multi-stage piezoelectric ceramic transducers

parasitic capacitance shunting

interface mechanical losses

and electro-mechanical fatigue that lead to low electromechanical coupling efficiency

three improvement methods are proposed: structural optimization

energy recovery type drive and material process collaboration. By using asymmetric electrodes and gradient polarization to reduce parasitic capacitance

and multi-stage series matching to achieve wide-band impedance self-adaptation; using strain energy feedback phase synchronization and duty cycle perturbation to suppress modal coupling

combined with bidirectional energy recovery circuits to reduce dielectric loss; developing gradient transition layer bonding

doping pre-polarization stress regulation

and active temperature control collaborative preload force technology. Experiments show that the electromechanical coupling efficiency has been increased to over 86%

interface losses have been reduced by approximately 65%

and fatigue life has been extended by 2.5 times.

关键词

Keywords

references

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