论文标题
高强度聚焦超声传输系统中的非线性效应
Nonlinear effects in high-intensity focused ultrasound power transfer systems
论文作者
论文摘要
在无线声音传输的背景下，高强度集中的超声技术的目的是通过将声能集中在特定位置来减少扩散损失。进行实验以确定非线性波传播对聚焦超声传输系统中空间共振条件的影响。进行了深入的分析以解释实验观察。结果表明，随着非线性效应变得更加突出，能量传递的效率降低了。此外，随着源强度的提高，最大电压输出位置的位置从焦点移开并更靠近传感器。使用集中源时，结果和分析与新型有效的超声波传输设备的开发有关。
In the context of wireless acoustic power transfer, high intensity focused ultrasound technology aims at the reduction of spreading losses by concentrating the acoustic energy at a specific location. Experiments are performed to determine the impact of nonlinear wave propagation on the spatially resonant conditions in a focused ultrasonic power transfer system. An in-depth analysis is performed to explain the experimental observations. The results show that the efficiency of the energy transfer is reduced as nonlinear effects become more prominent. Furthermore, the position of the maximum voltage output position shifts away from the focal point and closer to the transducer as the source strength is increased. The results and analysis are relevant to the development of novel efficient ultrasonic power transfer devices when using focused sources.
