Passive, Self-Tuning Energy Harvester for Extracting Energy From Rotational Motion

摘要

Energy harvester. The harvester includes a radially extending beam having a proximal end mounted a selected distance from an axis of rotation of an object and includes a mass at its distal end. The mass, beam characteristics, and the selected distance are chosen so that the beam resonant frequency during rotation of the object substantially matches the driven rotational frequency of the object.