Design and optimization of a linear vibration-driven electromagnetic micro-power generator

Clicks: 168
ID: 271160
2007
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Abstract
We present design and optimization of a linear electromagnetic generator suitable to supply power to body-worn sensor nodes. The design is based on an air-cored tubular architecture and a flexible translator bearing. A two-stage procedure is used to optimize the generator. First, the geometric parameters of stator and translator are optimized for maximum electromagnetic force capability based on magnetostatic finite element simulations. Second, mechanical resonance frequency and load resistance are optimized regarding maximum output power using lumped-parameter simulations and measured acceleration data from human walking motion. When worn on the body during walking, the optimized generator has an output power of 2–25 μ W, depending on its position on the human body. Stator and translator occupy a volume of 0.25 cm3. We have built a working generator prototype and validated the simulations.
Reference Key
tröster2007sensorsdesign Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Thomas von Büren,Gerhard Tröster;Thomas von Büren;Gerhard Tröster;
Journal sensors and actuators a: physical
Year 2007
DOI
10.1016/j.sna.2006.08.009
URL
https://sciprofiles.com/publication/view/a3c4eaff40e8a79d86d379edc4bee5cd
Keywords
energy harvesting micro-power supply vibration-to-electric energy conversion body-worn generator air-cored tubular generator flexible bearing

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