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arXiv · 0708.4412

Increasing the Efficiency of Energy Scavengers

Shahram M. Shahruz
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Abstract

In this paper, a methodology for designing efficient energy scavengers is proposed. The scavenger consists of a cantilever beam on which piezoelectric films and a mass are mounted. The mass at the tip of the beam is known as the proof mass and the device is called either an energy scavenger or a beam-mass system. The proof mass is a permanent magnet, where in its vicinity attracting permanent magnets are placed. It is shown that when the magnets have appropriate strengths and are placed appropriately, the vibration of the beam-mass system can be amplified, thereby the scavenged energy is increased. Examples are given throughout the paper.

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Shahram M. Shahruz. 2007-09-26. Increasing the Efficiency of Energy Scavengers. https://arxiv.org/abs/0708.4412

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