| 智能结构中压电元件双向换能效率的仿真研究 |
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| 引用本文： | 周文委,顾伟驷.智能结构中压电元件双向换能效率的仿真研究[J].传感技术学报,2005,18(2):241-243. |
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| 作者姓名： | 周文委 顾伟驷 |
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| 作者单位： | 浙江工业大学信息工程学院,杭州,310014;浙江工业大学信息工程学院,杭州,310014 |
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| 摘 要： | 根据压电振子机电换能等效图,得出压电超声换能器等效二端口网络模型,由此推导了智能结构中压电换能器的双向换能函数.仿真实验表明,驱动-传感换能器对的双向换能效率随负载声阻抗的增大先升高后降低.为提高换能效率,可以采用匹配声阻抗法.
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| 关 键 词： | 智能结构系统 压电换能器 换能效率 |
| 文章编号： | 1005-9490(2005)02-0241-03 |
| 修稿时间： | 2004年10月14日 |
Piezoelectric Transducers Embedded in Smart Structure |
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| Z HOU Wenwei,GU Weisi.Piezoelectric Transducers Embedded in Smart Structure[J].Journal of Transduction Technology,2005,18(2):241-243. |
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| Authors: | Z HOU Wenwei GU Weisi |
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| Affiliation: | Col lege of I nf ormation Engineering , Zhej iang Universit y of Technology , Hangz hou 310014 , China |
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| Abstract: | According to the electromechanical transfer equivalent figure of piezoelectric vibrator, the piezoelectric transducer is equivalently expressed as a two-port device and the two-way transduce function is deduced. Simulation experiments indicate that the two-way transducing efficiency of the drive-sensor transducer rises in advance then falls with the impedance of acoustic loads increasing. It may match the impedance of acoustic loads in order to increase transducing efficiency. |
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| Keywords: | smart structure system piezoelectric transducer transducing efficiency |
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