| 磁致伸缩超声换能器阻抗匹配网络的设计 |
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| 引用本文： | 冉超,黄文美,翁玲.磁致伸缩超声换能器阻抗匹配网络的设计[J].应用声学,2021,40(2):249-254. |
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| 作者姓名： | 冉超 黄文美 翁玲 |
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| 作者单位： | 河北工业大学,河北工业大学,河北工业大学 |
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| 基金项目： | 国家自然科学基金项目（面上项目，重点项目，重大项目） |
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| 摘 要： | 根据磁致伸缩超声换能器的等效电路模型和阻抗匹配理论,该文设计了一种优化的π型匹配网络.该网络具有调谐、变阻和滤波的功能,适用于工作在中低频超声频率范围内的磁致伸缩超声换能器系统的阻抗匹配.仿真和实验结果表明:接入该π型阻抗匹配网络后,驱动电源与换能器之间实现了最大功率传输,换能器两端电信号的波形质量得到优化,换能器激励...
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| 关 键 词： | 电磁超声 磁致伸缩换能器 阻抗匹配 阻抗频率特性 |
| 收稿时间： | 2020/4/17 0:00:00 |
| 修稿时间： | 2021/3/1 0:00:00 |
Design of impedance matching network for magnetostrictive ultrasonic transducer |
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| Ran Chao,Huang Wenmei and Weng Ling.Design of impedance matching network for magnetostrictive ultrasonic transducer[J].Applied Acoustics,2021,40(2):249-254. |
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| Authors: | Ran Chao Huang Wenmei and Weng Ling |
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| Institution: | Hebei University of Technology,Hebei University of Technology,Hebei University of Technology |
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| Abstract: | According to the equivalent circuit model and impedance matching theory of magnetostrictive ultrasonic transducers,an optimized-type matching network is designed in this paper.The network has the functions of tuning,variable resistance and filtering,and is suitable for impedance matching of magnetostrictive ultrasonic transducer systems operating in the mid-and low-frequency ultrasonic frequency ranges.Simulation and experimental results show that:after accessing the-type impedance matching network,the maximum power transmission between the driving power supply and the transducer is realized,the waveform quality of the electrical signal at both ends of the transducer is optimized,and the excitation current of the transducer is increased by 40%.The paper provides a technical support for the application of high-power magnetostrictive ultrasonic transducers. |
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| Keywords: | electromagnetic ultrasound magnetostrictive transducer impedance matching impedance frequency characteristics |
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