An experimentally validated contactless acoustic energy transfer model with resistive-reactive electrical loading
An experimentally validated contactless acoustic energy transfer model with resistive-reactive electrical loading
复制标题
具有电阻-电抗负载的经过实验验证的非接触式声能传输模型
DOI：
10.1117/12.2084361
复制
发表时间：
2015
影响因子：
7.1
通讯作者：
A. Erturk
中科院分区：
文献类型：
--
作者：
S. Shahab;M. Gray;A. Erturk
本文研究了超声声学能量转移(UAET)的分析模型和实验验证，以期在从医疗植入物到水下传感器系统的无线应用中开发低功率电能转移。压电式接收器杆由来自位于离接收器特定距离处的已知强度的源的入射声波激励。接收器是一个自由自由的压电圆柱体，工作在33模式的压电性，其基频高于可听频率范围。为了提取电功率输出，将压电棒分流到广义阻抗电路中。目标是根据电源强度来量化提供给负载(连接到接收器)的电力。文中给出了实验验证和参数优化研究。报告了在接收器的水下共振频率、源到接收器的距离和源强度水平附近的激励频率对电功率输出的灵敏度。讨论了阻性和阻性-无功电负载的情况，以提高性能和频率方向的稳健性。仿真和实验表明，所提出的UAET多物理分析模型可以很好地预测耦合系统的动力学特性。
This paper investigates analytical modeling and experimental validation of Ultrasonic Acoustic Energy Transfer (UAET) for low-power electricity transfer to exploit in wireless applications ranging from medical implants to underwater sensor systems. A piezoelectric receiver bar is excited by incident acoustic waves originating from a source of known strength located at a specific distance from the receiver. The receiver is a free-free piezoelectric cylinder operating in the 33- mode of piezoelectricity with a fundamental resonance frequency above the audible frequency range. In order to extract the electrical power output, the piezoelectric receiver bar is shunted to a generalized resistive-reactive circuit. The goal is to quantify the electrical power delivered to the load (connected to the receiver) in terms of the source strength. Experimental validations are presented along with parameter optimization studies. Sensitivity of the electrical power output to the excitation frequency in the neighborhood of the receiver’s underwater resonance frequency, source-to-receiver distance, and source-strength level are reported. Resistive and resistive-reactive electrical loading cases are discussed for performance enhancement and frequency-wise robustness. Simulations and experiments reveal that the presented multiphysics analytical model for UAET can be used to predict the coupled system dynamics with very good accuracy.
影响因子：
2.4
作者：
Canney, Michael S.;Bailey, Michael R.;Sapozhnikov, Oleg A.
通讯作者：
Sapozhnikov, Oleg A.