用于为生物医学设备供电的身体运动。

Body motion for powering biomedical devices.

作者信息

Romero Edwar, Warrington Robert O, Neuman Michael R

机构信息

Mechanical Engineering Department, Michigan Technological University, Houghton, MI 49931, USA.

出版信息

Annu Int Conf IEEE Eng Med Biol Soc. 2009;2009:2752-5. doi: 10.1109/IEMBS.2009.5333329.

DOI:10.1109/IEMBS.2009.5333329

PMID:19964048

Abstract

Kinetic energy harvesting has been demonstrated as a useful technique for powering portable electronic devices. Body motion can be used to generate energy to power small electronic devices for biomedical applications. These scavengers can recharge batteries, extending their operation lifetime or even replace them. This paper addresses the generation of energy from human activities. An axial flux generator is presented using body motion for powering miniature biomedical devices. This generator presents a gear-shaped planar coil and a multipole NdFeB permanent magnet (PM) ring with an attached eccentric weight. The device generates energy by electromagnetic induction on the planar coil when subject to a changing magnetic flux due to the generator oscillations produced by body motion. A 1.5 cm(3) prototype has generated 3.9 microW of power while walking with the generator placed laterally on the ankle.

摘要

动能收集已被证明是为便携式电子设备供电的一项有用技术。身体运动可用于产生能量，为生物医学应用中的小型电子设备供电。这些能量收集器可为电池充电，延长其使用寿命，甚至可取代电池。本文探讨了从人类活动中获取能量的问题。提出了一种利用身体运动为微型生物医学设备供电的轴向磁通发电机。该发电机有一个齿轮形状的平面线圈和一个带有附加偏心配重的多极钕铁硼永磁体（PM）环。当由于身体运动产生的发电机振荡而使平面线圈受到变化的磁通量时，该装置通过电磁感应产生能量。一个1.5立方厘米的原型在将发电机横向放置在脚踝上行走时产生了3.9微瓦的功率。