|Title||Electrodynamic Wireless Power Transmission to a Torsional Receiver|
|Publication Type||Conference Paper|
|Year of Publication||2013|
|Authors||McEachern, K. M., and D. P. Arnold|
|Conference Name||Journal of Physics: Conference Series|
|Conference Location||London, UK|
|Keywords||electrodynamic, resonant, torsional, wireless power|
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.