电子元件与材料2025，Vol.44Issue(7)：797-802,6.DOI:10.14106/j.cnki.1001-2028.2025.1563
一种小体积宽带高灵敏接收换能器
A receiver transducer with small volume,broad bandwidth and high sensitivity
摘要
Abstract
A small-volume receiving transducer has been developed to meet the requirements of wide bandwidth and high sensitivity for receiving transducer arrays needed for underwater frogmen and sonar systems in submarines.This transducer effectively expands the transducer bandwidth and improves the receiving sensitivity by multimode coupling,and by applying a metal plate and a matching layer.Firstly,the relationship between the height and resonant frequency of the piezoelectric sensitive element was analyzed by theoretical analysis.Secondly,the height difference between the two sides was analyzed to understand their effect on the bandwidth and receiving sensitivity by finite element analysis,and the size of the sensitive element was optimized according to the simulation results.Through processes such as piezoelectric ceramic cutting,matching layer application and potting fabrication,several transducers were fabricated with small volume,broad bandwidth,and high sensitivity.The tested transducers have a receiver sensitivity of about-172 dB and a bandwidth of about 12 kHz at-3 dB,and their superior performance and small size have a very promising application in receiver sensor arrays.关键词
接收传感器阵列/有限元分析/宽带/高灵敏Key words
receiving sensor array/finite element analysis/broadband/high sensitivity分类
通用工业技术引用本文复制引用
蒋万里,王宏伟,王小妮..一种小体积宽带高灵敏接收换能器[J].电子元件与材料,2025,44(7):797-802,6.基金项目
国家自然科学基金(61771060) （61771060）
