摘要
匹配层材料及结构对于提高阵列式换能器的带宽、灵敏度及轴向分辨率有重要作用。为了探究不同匹配层材料对阵列式换能器性能的影响,该文通过有限元法模拟了包括高分子材料、0-3复合材料及镁合金等多种匹配层材料的阵列式换能器,综合比较了各自的频域特性及时域特性。仿真结果表明,使用AZ31B镁合金作为第一匹配层、Epo-Tek 301环氧树脂作为第二匹配层的阵列式换能器模型具有最佳的综合性能,从而为高性能阵列式压电超声换能器的开发、研究提供了新的匹配层设计参考方案。
The matching layer material and structure play an important role in improving the bandwidth,sensitivity and axial resolution of the array transducer.To investigate the effects of different matching layer materials on the performance of array transducers,this paper simulated array transducers with different matching layer materials including polymer,0-3 composite materials and magnesium alloy through finite element method.The frequency domain and time domain characteristics of each transducer models were compared.The simulation results show that the array transducer model using AZ31B magnesium alloy as the first matching layer and Epo-Tek 301 epoxy as the second matching layer has the best performance,providing a new matching layer design scheme for developing high-performance array piezoelectric ultrasonic transducers.
作者
孙裕后
王甫霖
董杰
靳丽
王锋华
董帅
SUN Yuhou;WANG Fulin;DONG Jie;JIN Li;WANG Fenghua;DONG Shuai(National Engineering Research Center of Light Alloy Net Forming,Shanghai Jiaotong University,Shanghai 200240,China)
出处
《压电与声光》
CAS
北大核心
2022年第2期273-277,共5页
Piezoelectrics & Acoustooptics
基金
国家自然科学基金资助项目(52071208)
山西省重点研发计划基金资助项目(201903D421036)。
关键词
阵列式换能器
有限元法(FEM)
频域分析
时域分析
声阻抗匹配层
镁合金
array transducer
finite element method(FEM)
frequency domain analysis
time domain analysis
acoustic impedance matching layer
magnesium alloy
