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Scaling effects for electromagnetic vibrational power generators

Scaling effects for electromagnetic vibrational power generators
Scaling effects for electromagnetic vibrational power generators
This paper investigates how the power generated by electromagnetic based vibrational power generators scales with the dimension of the generator. The effects of scaling on the magnetic fields, the coil parameters and the electromagnetic damping are presented. An analysis is presented for both wire-wound coil technology and micro-fabricated coils. The power obtainable from electromagnetic generators in the dimension range of 1–10 mm is calculated. It is shown that the theoretical maximum power scales with the cube of the dimension. It is also shown that the high coil resistance associated with micro-coils severely restricts the power, which can be extracted.
0946-7076
O'Donnell, T
9122a8f1-90bf-457e-ad26-0585f36bbf90
Saha, C
e5a92d80-da7c-45a0-9725-f95794603a85
Beeby, S
ba565001-2812-4300-89f1-fe5a437ecb0d
Tudor, J
46eea408-2246-4aa0-8b44-86169ed601ff
O'Donnell, T
9122a8f1-90bf-457e-ad26-0585f36bbf90
Saha, C
e5a92d80-da7c-45a0-9725-f95794603a85
Beeby, S
ba565001-2812-4300-89f1-fe5a437ecb0d
Tudor, J
46eea408-2246-4aa0-8b44-86169ed601ff

O'Donnell, T, Saha, C, Beeby, S and Tudor, J (2007) Scaling effects for electromagnetic vibrational power generators. Microsystem Technologies. (doi:10.1007/s00542-006-0363-0).

Record type: Article

Abstract

This paper investigates how the power generated by electromagnetic based vibrational power generators scales with the dimension of the generator. The effects of scaling on the magnetic fields, the coil parameters and the electromagnetic damping are presented. An analysis is presented for both wire-wound coil technology and micro-fabricated coils. The power obtainable from electromagnetic generators in the dimension range of 1–10 mm is calculated. It is shown that the theoretical maximum power scales with the cube of the dimension. It is also shown that the high coil resistance associated with micro-coils severely restricts the power, which can be extracted.

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More information

Published date: January 2007
Organisations: EEE

Identifiers

Local EPrints ID: 263761
URI: https://eprints.soton.ac.uk/id/eprint/263761
ISSN: 0946-7076
PURE UUID: 42e45c8a-afbf-4273-91e0-0217bb70293c
ORCID for S Beeby: ORCID iD orcid.org/0000-0002-0800-1759

Catalogue record

Date deposited: 27 Mar 2007
Last modified: 06 Jun 2018 13:07

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