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Comparison between piezoelectric and magnetic strategies for wearable energy harvesting

机译：可穿戴能源收割的压电和磁策略的比较

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摘要

This paper introduces the design and fabrication of energy harvesters for the power generation from human body motion. Two alternative strategies are compared: piezoelectric and magnetic inductive. The generated energy is used to supply body sensors including accelerometers and temperature sensors and RF module. Two prototypes of the magnetic based generator and of the piezoelectric generator are built and tested with shaker at resonance condition and by dedicated bench reproducing joints rotation during walking. The experimental results show that the magnetic prototype can generate 0.7mW from human body motion, while the piezo harvester generates 0.22 and 0.33μW respectively for flexion and extension at angular velocity lower than lrad/s and 45° amplitude.
机译：本文介绍了从人体运动中发电的能量收割机的设计和制造。比较两种替代策略：压电和磁感应。产生的能量用于提供体传感器，包括加速度计和温度传感器和RF模块。磁力发电机和压电发电机的两个原型用振动件以谐振条件和散步期间再现接头旋转构建和测试。实验结果表明，磁性原型可以从人体运动产生0.7mW，而Puezo Harvester分别产生0.22和0.33μW，用于屈曲和延伸，在角速度低于LRAD / S和45°振幅。

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