| Circular PVDF Airborne Transducer |
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| 作者姓名： | JIAO Li-hua XU Li-mei HONG Hu |
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| 作者单位： | [1]School of Mechantronics Engineering. University of Electronic Science and Technology of China Chengdu 610054 China [2]Department of Professional and Continuing Education Shenzhen Academy, Harbin Institute of Technology Shenzhen 518057 China |
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| 摘 要： | With the required increased audio pressure of the parametric ultrasonic transducer array and the difficulty to theoretically analyse the complex ultrasonic structure in audio beam application, an computationally efficient model is desired to describe the characteristic of the parametric ultrasonic transducer array for the system design and optimization. By applying the symmetry boundary conditions at the mid-plane in the thickness direction, a finite element model based on the haft thickness simplification is presented to analyze the parametric circular transducer which is designed by gluing the poly Vinylidene fluoride film （PVDF）. The validity of the proposed model is confn＇med by a comparison of finite element analysis results with the theoretical value and experimental data, which show that they are making a good agreement with each other.
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| 关 键 词： | 聚偏二氟乙烯薄膜 圆形PVDF机载传感器 参量超声换能器 谐振频率 有限元 |
| 收稿时间： | 2006-03-09 |
Circular PVDF Airborne Transducer |
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| JIAO Li-hua XU Li-mei HONG Hu.Circular PVDF Airborne Transducer[J].Journal of Electronic Science Technology of China,2007,5(1):53-57. |
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| Authors: | JIAO Li-hua XU Li-mei HONG Hu |
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| Abstract: | With the required increased audio pressure of the parametric ultrasonic transducer array and the difficulty to theoretically analyse the complex ultrasonic structure in audio beam application,an computationally efficient model is desired to describe the characteristic of the parametric ultrasonic transducer array for the system design and optimization. By applying the symmetry boundary conditions at the mid-plane in the thickness direction,a finite element model based on the half thickness simplification is presented to analyze the parametric circular transducer which is designed by gluing the poly Vinylidene fluoride film(PVDF). The validity of the proposed model is confirmed by a comparison of finite element analysis results with the theoretical value and experimental data,which show that they are making a good agreement with each other. |
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| Keywords: | parametric ultrasonic transducer resonance frequency anti-resonance frequency finite element |
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