| 复合连通型压电水声换能器基阵的研究 |
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| 引用本文： | 李邓化,田红霞.复合连通型压电水声换能器基阵的研究[J].北京机械工业学院学报,2009,24(4). |
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| 作者姓名： | 李邓化 田红霞 |
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| 作者单位： | 北京信息科技大学,自动化学院,北京,100192 |
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| 基金项目： | 北京市属市管高等学校人才强教计划 |
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| 摘 要： | 针对压电水声换能器自由场电压接收灵敏度问题,以Cymbal换能器为压电相,聚氨酯为聚合物相,构成了具有1-3复合连通型特征的压电复合水声换能器平面均匀并联基阵.建立了基阵数学模型;制作并测试了该基阵的自由场电压接收灵敏度.结果表明,该种结构的压电复合水声换能器的自由场电压接收灵敏度与阵元的体积分数有关;与阵元的间距有关,阵元间距在对应于辐射因子为零处时,可得到该基阵的自由场电压接收灵敏度的最大值;其自由场电压接收灵敏度的实测值与理论值有很好的吻合程度,基阵的基波谐振频率比单个换能器阵元的基波谐振频率明显降低.
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| 关 键 词： | 1-3复合连通型 水声换能器 并联基阵 接收灵敏度 阵元间距 辐射因子 |
Homogeneous plane parallel array of composite connectivity underwater acoustic receiving piezoelectric transducer |
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| LI Deng-hua,TIAN Hong-xia.Homogeneous plane parallel array of composite connectivity underwater acoustic receiving piezoelectric transducer[J].Journal of Beijing Institute of Machinery,2009,24(4). |
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| Authors: | LI Deng-hua TIAN Hong-xia |
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| Affiliation: | LI Deng-hua,TIAN Hong-xia(School of Automation,Beijing Information Science , Technology University,Beijing 100192,China) |
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| Abstract: | For the problem of free field voltage receiving sensitivity of underwater acoustic receiving piezoelectric transducer,the cymbal transducer is used as piezoelectric phase and polyurethane as polymer phase to constitute homogeneous plane parallel array of piezocomposite underwater acoustic receiving transducer with a characteristic of 1-3 piezoelectric composite connectivity.The mathematics model of this piezocomposite underwater acoustic transducer array is established.Using cymbal transducers as array elem... |
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| Keywords: | Cymbal |
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