Electrodynamic wireless power transmission to a torsional receiver

13th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications

物理学;能源学

McEachern, K.M.^1 ; Arnold, D.P.^1

Interdisciplinary Microsystems Group, Department of Electrical and Computer Engineering, University of Florida, Gainesville, FL 32611, United States^1

关键词: Average power;    Conductive media;    Electrodynamic couplings;    Human hands;    Power densities;    Torsional motion;    Wireless power transmission;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/476/1/012004/pdf
DOI  :  10.1088/1742-6596/476/1/012004

来源: IOP

【 摘 要 】

This paper presents a wireless power transmission (WPT) concept that uses electrodynamic coupling and torsional motion of a permanent magnet in the receiver. The system is shown to transfer an average power of 3.09 mW (power density equal to 143 μW/cm3) over a distance of 1 cm, an average power of 1.98 mW over a distance of 2 cm, and an average power of 126 μW over a distance of 7 cm. We also demonstrate unaltered power transmission through conductive media, including a human hand and an aluminum plate, highlighting a key advantage of the electrodynamic wireless power transmission approach.