AI 中文总结
研究通过金属声功率传输中功率受多种因素影响的问题，通过实验研究多个原型终端电气特性，比较不同模式功率传输能力，提出品质因数用于配置筛选排名，助力模式选择和接口设计。
AI 中文摘要
通过金属声功率传输是一种新兴的无线解决方案，用于在危险和敏感环境中为电池充电，这些环境中的电子设备封闭在密封金属结构内且无电气馈通。功率传输通过声波在金属屏障中传播利用逆压电效应和正压电效应来实现。可实现的功率通常目标为数百瓦，受到多种因素强烈影响，如材料特性、几何形状、金属和压电材料的尺寸及其结合方式等，这使得最大化功率传输能力至关重要。本工作通过实验研究了多个代表实际场景的原型的终端电气特性。比较了压电金属组件在厚度和径向共振模式下的功率传输能力，以实现合适的模式选择和电力电子接口设计。还提出了一个品质因数（FOM），用于就功率传输能力而言对配置进行快速筛选和排名。
英文摘要
Through metal acoustic power transfer is an emerging wireless solution for battery charging in hazardous and sensitive environments where electronics are enclosed within sealed metal structures without electrical feed through. Power transfer is achieved utilizing reverse and direct piezoelectric effects via acoustic wave propagation through the metal barrier. The achievable power, often targeting hundreds of watts, is strongly influenced by different factors, such as, material properties, geometry, dimensions of the metal and piezo, and their bonding, making maximization of power transfer capability critical. This work experimentally investigates the terminal electrical characteristics of multiple prototypes, representing realistic scenarios. It compares power transfer capability in thickness and radial resonance modes for piezo metal assemblies, enabling appropriate mode selection and power electronics interface design. A figure of merit (FOM) is proposed for rapid screening and ranking of configurations as far as the power transfer capability is concerned.
Comments8 pages, IAS Annual Meeting 2026
