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A Planar Electromagnetic Vibration Energy Harvester with a Halbach Array

A Planar Electromagnetic Vibration Energy Harvester with a Halbach Array
A Planar Electromagnetic Vibration Energy Harvester with a Halbach Array
This paper presents a low-profile, planar electromagnetic vibration energy harvester integrated with a Halbach array. Halbach array is a special arrangement of permanent magnets that doubles the magnetic field on one side of the array while cancelling the field to near zero on the other side. Using this arrangement can improve electromagnetic coupling in a limited space. The energy harvester has a resonant frequency of 44.9Hz and generated an average power of over 120µW when excited at 0.3g (1g = 9.8m•s-2). The electromagnetic vibration energy harvester reported here is only 4mm thick, which makes it one of the thinnest electromagnetic energy harvesters among existing non-MEMS devices.
Zhu, Dibin
ec52eae1-39fa-427c-968b-e76089a464a6
Beeby, Steve
ba565001-2812-4300-89f1-fe5a437ecb0d
Tudor, John
46eea408-2246-4aa0-8b44-86169ed601ff
Harris, Nick
237cfdbd-86e4-4025-869c-c85136f14dfd
Zhu, Dibin
ec52eae1-39fa-427c-968b-e76089a464a6
Beeby, Steve
ba565001-2812-4300-89f1-fe5a437ecb0d
Tudor, John
46eea408-2246-4aa0-8b44-86169ed601ff
Harris, Nick
237cfdbd-86e4-4025-869c-c85136f14dfd

Zhu, Dibin, Beeby, Steve, Tudor, John and Harris, Nick (2011) A Planar Electromagnetic Vibration Energy Harvester with a Halbach Array. At PowerMEMS 2011 PowerMEMS 2011. 15 - 18 Nov 2011.

Record type: Conference or Workshop Item (Poster)

Abstract

This paper presents a low-profile, planar electromagnetic vibration energy harvester integrated with a Halbach array. Halbach array is a special arrangement of permanent magnets that doubles the magnetic field on one side of the array while cancelling the field to near zero on the other side. Using this arrangement can improve electromagnetic coupling in a limited space. The energy harvester has a resonant frequency of 44.9Hz and generated an average power of over 120µW when excited at 0.3g (1g = 9.8m•s-2). The electromagnetic vibration energy harvester reported here is only 4mm thick, which makes it one of the thinnest electromagnetic energy harvesters among existing non-MEMS devices.

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More information

Published date: November 2011
Additional Information: Event Dates: November 15 - 18
Venue - Dates: PowerMEMS 2011, 2011-11-15 - 2011-11-18
Organisations: EEE

Identifiers

Local EPrints ID: 273016
URI: https://eprints.soton.ac.uk/id/eprint/273016
PURE UUID: 32395049-f654-4e2c-b94f-1cf78db2f565
ORCID for Steve Beeby: ORCID iD orcid.org/0000-0002-0800-1759
ORCID for Nick Harris: ORCID iD orcid.org/0000-0003-4122-2219

Catalogue record

Date deposited: 18 Nov 2011 00:29
Last modified: 06 Jun 2018 13:08

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