| 一种压电单晶矢量水听器的性能建模与分析 |
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| 引用本文： | 王佳荣,许欣然,夏铁坚,解广亚.一种压电单晶矢量水听器的性能建模与分析[J].压电与声光,2019,41(4):552-556. |
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| 作者姓名： | 王佳荣 许欣然 夏铁坚 解广亚 |
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| 作者单位： | (杭州应用声学研究所 声纳技术重点实验室，浙江 杭州 310023) |
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| 基金项目： | 重点实验室基金资助项目(9140C240101160C24001) |
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| 摘 要： | 针对加速度型矢量水听器在低频段灵敏度偏低问题,根据铌锌酸铅-钛酸铅(PZN-PT)压电单晶的性能特点,设计了一种双悬臂梁结构压电单晶矢量水听器。建立了有限元模型,对矢量水听器的振动模态和接收性能进行了仿真计算,重点分析了几个主要材料和尺寸参数对水听器自由场灵敏度的影响。理论计算表明,采用压电单晶PZN-PT的矢量水听器经优化后其灵敏度可达-190 dB@250 Hz,与压电陶瓷PZT-5A的水听器相比,灵敏度提升了15 dB以上。
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| 关 键 词： | 铌锌酸铅-钛酸铅(PZN-PT) 双悬臂梁 矢量水听器 |
Performance Modeling and Analysis of a Piezoelectric Single Crystal Vector Hydrophone |
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| WANG Jiarong,XU Xinran,XIA Tiejian,XIE Guangya.Performance Modeling and Analysis of a Piezoelectric Single Crystal Vector Hydrophone[J].Piezoelectrics & Acoustooptics,2019,41(4):552-556. |
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| Authors: | WANG Jiarong XU Xinran XIA Tiejian XIE Guangya |
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| Abstract: | Aiming at the low sensitivity of acceleration vector hydrophone in low frequency band, a piezoelectric single crystal hydrophone with double cantilever beam structure is designed according to the performance characteristics of lead zinc niobate lead titanate (PZN PT) piezoelectric single crystal. The finite element model is established to simulate and calculate the vibration mode and receiving performance of the vector hydrophone. The effects of several main material parameters and size parameters on the sensitivity of hydrophones to free field are analyzed emphatically. The theoretical calculation shows that the sensitivity of the vector hydrophone using piezoelectric single crystal PZN PT can reach -190 dB@250 Hz after optimization, which is more than 15 dB higher than that of the hydrophone based on piezoelectric ceramic PZT 5A. |
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| Keywords: | PZN PT double cantilever beam vector hydrophone |
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