摩擦电能量采集器使用频率上变频产生极低频应变输入

2017 IEEE 30th International Conference on Micro Electro Mechanical Systems (MEMS) Pub Date : 2017-02-23 DOI:10.1109/MEMSYS.2017.7863545

H. Ko, D. Kwon, Jongbaeg Kim

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引用次数: 1

摘要

我们开发了一种柔性摩擦电能量采集器，可以从极低频应变输入产生能量。该收割机由柔性衬底、悬臂、部分粘接在悬臂下方的下垂薄膜和永磁体组成。当悬臂梁变形时，悬臂梁与下垂的薄膜之间发生接触和分离运动，并通过摩擦电效应发电。采用频率上变频机构，使悬臂梁以固有频率振动，并通过快速接触和分离获得更高的输出功率。在0.5 Hz应变输入下，当电阻性负载为2 MΩ时，输出峰对峰功率为267.38 μW, RMS输出功率为0.20 μW。

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Triboelectric energy harvester using frequency up-conversion to generate from extremely low frequency strain inputs

We developed a flexible triboelectric energy harvester that can generate from extremely low frequency strain inputs. The harvester consists of flexible substrate, cantilever, sagged film which is partially bonded beneath the cantilever and permanent magnets. When the cantilever is deformed, contact and separation motion between the cantilever and sagged film occurs and it makes electricity by triboelectric effect. By adopting frequency up-conversion mechanism, the cantilever vibrates at its natural frequency and it makes higher output power by fast contact and separation. The peak-to-peak and RMS output power were 267.38 μW and 0.20 μW for a resistive load of 2 MΩ at 0.5 Hz strain input, respectively.

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2017 IEEE 30th International Conference on Micro Electro Mechanical Systems (MEMS)

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