电磁能量收割机针对可穿戴和生物医学应用
Gabriel Digregorio1, Jean-Michel Redouté1
1Department of Electrical Engineering, ULiège University, 4000 Liège, Belgium.
Sensors (Basel, Switzerland)
|April 13, 2024
概括
本研究介绍了用于可穿戴设备的紧型电磁能收获器 (EMEH). 它有效地从应用力和随机加速度中产生电力,在10Hz时达到1696μW.
科学领域:
- 收集能源 收集能源
- 生物医学工程 生物医学工程
- 可穿戴技术可穿戴技术
背景情况:
- 微型电磁能收获器 (EMEH) 对于供电可穿戴设备和生物医学设备至关重要.
- 现有的收割机经常面临效率和适应不稳定的运动环境的限制.
- 开发强大的EMEH对于植入式和可穿戴式传感器的自主操作至关重要.
研究的目的:
- 为了展示一个新的微型电磁能收获器 (EMEH) 设计.
- 调查EMEH的双模式能源发电能力 (强力诱导和加速诱导).
- 描述EMEH在可穿戴应用中的性能,并与现有技术进行比较.
主要方法:
- 设计和制造一个小型的EMEH,其中包括一个永久磁铁塔和两个移动的线圈.
- 开发一个定制的测试台,用于在各种条件下描述收割机的行为.
- 在不同的频率下测试EMEH和与可穿戴场景相关的根平均平方 (RMS) 加速水平.
主要成果:
- EMEH在两个不同的工作模式中展示了一致的输出发电.
- 在10 Hz和1.32 g RMS加速时,该设备在22.39 cm3体积内实现了1696 μW的输出功率.
- 收割机在运动不稳定的环境中被证明是有效的,这在可穿戴和生物医学应用中是典型的.
结论:
- 本次展示的小型化EMEH为可穿戴和生物医学应用提供了高效的发电.
- 双模式操作增强了其在具有不可预测运动的环境中的多功能性.
- 该研究为未来在该领域的惯性EMEH发展建立了绩效基准.
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