带损耗的多对压电陶瓷夹层换能器分析

IEEE 1992 Ultrasonics Symposium Proceedings Pub Date : 1992-10-20 DOI:10.1109/ULTSYM.1992.275986

Z. Yan, Z. Lin

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引用次数: 0

摘要

用压电陶瓷的复系数来考虑换能器的损耗。给出了含损耗压电陶瓷和多对压电陶瓷夹层换能器的等效电路。提出了一种在实际条件下测量压电材料复系数的方法，编制了一维含损耗复合振动系统的通用程序。比较了一种换能器的理论解和结果。

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Analysis of sandwich transducer consisting of multi-pair of piezoelectric ceramics with losses

Transducer losses are considered with complex coefficients of piezoelectric ceramics. Equivalent circuits for piezoelectric ceramics with losses and for sandwich transducers with multi-pairs of piezoelectric ceramics are given. A method for measuring the complex coefficients of piezoelectric materials under practical conditions is proposed, and a general program for a one-dimensional composite vibration system with losses is compiled. The theoretical solutions and results of one transducer are compared.<>

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IEEE 1992 Ultrasonics Symposium Proceedings

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