A 2 DOF vibration harvester for broadband and multifrequency harvesting using a single electro-magnetic transducer

S. G. Burrow, L. Penrose

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

4 Citations (Scopus)

Abstract

The narrow bandwidth of resonant vibration energy harvesters has long been seen as a drawback to exploitation. The narrow bandwidth is necessitated by the requirement to sufficiently amplify small source vibrations, but results in devices vulnerable to changes in excitation frequency, de-tuning due to ageing of components, and also makes efficient harvesting from sources with multiple frequency components difficult. In this paper a harvester based on a 2 degree of freedom oscillator is presented that not only enjoys the wider bandwidth of the higher order system, but configures the electromagnetic transducer in such a way that it requires no more components than the transducer of a typical single degree of freedom harvester. Theoretical models of the harvester system predict a range of possible frequency response functions dependent on easily-adjusted electrical parameters. These predictions are validated with experimental results.

Original languageEnglish
Title of host publicationJournal of Physics: Conference Series
Volume557
Edition1
DOIs
Publication statusPublished - 1 Jan 2014
Event14th International Conference on Micro- and Nano-Technology for Power Generation and Energy Conversion Applications, PowerMEMS 2014 - Awaji Island, Hyogo, Japan
Duration: 18 Nov 201421 Nov 2014

Publication series

NameJournal of Physics: Conference Series
PublisherIOP Publishing
ISSN (Print)1742-6588

Conference

Conference14th International Conference on Micro- and Nano-Technology for Power Generation and Energy Conversion Applications, PowerMEMS 2014
CountryJapan
CityAwaji Island, Hyogo
Period18/11/1421/11/14

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