| L型匹配网络对超声换能器振动性能的影响 |
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| 引用本文： | 方由艳,林书玉.L型匹配网络对超声换能器振动性能的影响[J].声学技术,2010,29(1):112-115. |
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| 作者姓名： | 方由艳 林书玉 |
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| 作者单位： | 陕西师范大学应用声学研究所,西安,710062 |
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| 基金项目： | 国家自然科学基金项目 |
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| 摘 要： | 探讨了L型匹配网络对超声换能器振动频率的影响,从理论和实验两个方面给出了L型匹配网络与机电偶合系数的关系。通过对串联、并联的比较,并对几种方式下的匹配电路参数对系统有效机电耦合系数的影响进行分析,结果表明：通过合理选择匹配电路参数,L型匹配网络能提高压电换能器的有效机电耦合系数。
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| 关 键 词： | 匹配网络 有效机电耦合系数 超声换能器 |
| 收稿时间： | 2008/12/24 0:00:00 |
| 修稿时间： | 2009/4/7 0:00:00 |
Effects of L-type matching network on characteristics of ultrasonic transducers |
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| FANG You-yan and LIN Shu-yu.Effects of L-type matching network on characteristics of ultrasonic transducers[J].Technical Acoustics,2010,29(1):112-115. |
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| Authors: | FANG You-yan and LIN Shu-yu |
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| Affiliation: | FANG You-yan,LIN Shu-yu (Institute of Applied Acoustics,Shaanxi Normal University,Xi\'an 710062,China) |
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| Abstract: | The effects of L-type matching network on resonant frequency and vibration characteristics of ultrasonic transducers are studied.The relationship between the L-type matching network and the electromechanical coupling coefficient is derived by theoretical analysis and experiment.The effective electromechanical coupling coefficient of the ultrasonic transducer with a series inductor,a parallel inductor or an L-type matching network is analyzed,and the result show that using L-type matching network is better,t... |
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| Keywords: | matching network effcctive electromechanical coupling coefficient ultrasonic transducer |
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