The Effect of Electrical Impedance Matching on the Electromechanical Characteristics of Sandwiched Piezoelectric Ultrasonic Transducers | |
Yuan Yang; Xiaoyuan Wei; Lei Zhang; Wenqing Yao | |
刊名 | sensors |
2017-12-06 | |
卷号 | 17期号:12页码:2832 |
关键词 | sandwiched piezoelectric ultrasonic transducers effective electro-mechanical coupling coefficient electro-acoustic power ratio electro-acoustic gain ratio electrical impedance matching |
DOI | 10.3390/s17122832 |
英文摘要 | For achieving the power maximum transmission, the electrical impedance matching (EIM) for piezoelectric ultrasonic transducers is highly required. In this paper, the effect of EIM networks on the electromechanical characteristics of sandwiched piezoelectric ultrasonic transducers is investigated in time and frequency domains, based on the PSpice model of single sandwiched piezoelectric ultrasonic transducer. The above-mentioned EIM networks include, series capacitance and parallel inductance (I type) and series inductance and parallel capacitance (II type). It is shown that when I and II type EIM networks are used, the resonance and anti-resonance frequencies and the received signal tailing are decreased; II type makes the electro-acoustic power ratio and the signal tailing smaller whereas it makes the electro-acoustic gain ratio larger at resonance frequency. In addition, I type makes the effective electromechanical coupling coefficient increase and II type makes it decrease; II type make the power spectral density at resonance frequency more dramatically increased. Specially, the electro-acoustic power ratio has maximum value near anti-resonance frequency, while the electro-acoustic gain ratio has maximum value near resonance frequency. It can be found that the theoretically analyzed results have good consistency with the measured ones. |
WOS研究方向 | Chemistry ; Engineering ; Instruments & Instrumentation |
语种 | 英语 |
WOS记录号 | WOS:000423285800132 |
内容类型 | 期刊论文 |
源URL | [http://ir.lut.edu.cn/handle/2XXMBERH/156559] |
专题 | 兰州理工大学 |
通讯作者 | Xiaoyuan Wei |
作者单位 | Xi’an University of Technology |
推荐引用方式 GB/T 7714 | Yuan Yang,Xiaoyuan Wei,Lei Zhang,et al. The Effect of Electrical Impedance Matching on the Electromechanical Characteristics of Sandwiched Piezoelectric Ultrasonic Transducers[J]. sensors,2017,17(12):2832. |
APA | Yuan Yang,Xiaoyuan Wei,Lei Zhang,&Wenqing Yao.(2017).The Effect of Electrical Impedance Matching on the Electromechanical Characteristics of Sandwiched Piezoelectric Ultrasonic Transducers.sensors,17(12),2832. |
MLA | Yuan Yang,et al."The Effect of Electrical Impedance Matching on the Electromechanical Characteristics of Sandwiched Piezoelectric Ultrasonic Transducers".sensors 17.12(2017):2832. |
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