An energy harvesting bracelet

作者：Wu, Zhiyi^*; Tang, Jianhong; Zhang, Xin; Yu, Zhicheng

来源：Applied Physics Letters, 2017, 111(1): 013903.

DOI：10.1063/1.4991666

• GENERATING ELECTRICITY
• WEARABLE ELECTRONICS
• BIOMECHANICAL ENERGY
• HUMAN WALKING
• VIBRATION
• OPERATION
• SYSTEM

An energy harvesting bracelet (EHB) based on two mutually exclusive circular motion permanent magnetic movers is demonstrated, which is able to capture energy through the natural motions of the wearer's wrist. The EHB can transform the translational motion in any orientation except the axial into the rotational motion of the movers, which passes through four coil transducers and induces significantly large electro-motive forces across the coils. A prototype EHB is shown to produce power that can charge a capacitor with 470 mu F 25 V up to more than 0.81 V during at most 132 ms from any single excitations. Published by AIP Publishing.

• 出版日期2017-7-3
• 单位重庆理工大学; 中国工程物理研究院; 中国工程物理研究院激光聚变研究中心