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Tunable vibration energy harvester and energy harvesting method
Tunable vibration energy harvester and energy harvesting method
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机译:可调振动能量采集器和能量采集方法
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摘要
An energy harvester (12) is provided which includes an energy conversion device (24) configured to convert vibrational energy to electrical energy, a mass (30) coupled to the energy conversion device, and at least one selectively adjustable biasing mechanism (32) coupled to the mass. Selectively adjusting the biasing mechanism (32) adjusts a resonance frequency of the energy conversion device (24) and the mass (30). Preferably, a piezoelectric cantilever (29) is used and the compression distance of a spring (60) is adjusted by an actuator (46).
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