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Magnetic potential well tuning of resonant cantilever energy harvester

Magnetic potential well tuning of resonant cantilever energy harvester
Magnetic potential well tuning of resonant cantilever energy harvester
Cantilever energy harvesters have presently been tuned by manipulating beam dimensions or by placement of a tip mass. While these techniques lend themselves well to designing a highly tuned resonance, the design is fixed and each system is unique to a specific frequency. Here we report investigations of magnetic potential well tuning to vary the spring constant, which shifts the resonance. The significance of this work is the design of a harvesting system with variable resonance, adjusted by changing the effective spring constant by means of shaped pole-pieces on a pair of magnets. Wider tuning range with reduced tuning force is thus achieved.
480-483
Mukherjee, Anisha
a6557fca-b83e-4831-a6c8-222838ededd1
Mitcheson, Paul
d50a092b-8df6-4530-9ac4-76eeead72022
Wright, Steve
cbb57026-3007-4479-8996-1867fdbba217
Yeatman, Eric
7b21b3fc-a815-4305-a75e-c1698ff6dbda
Zhu, Dibin
ec52eae1-39fa-427c-968b-e76089a464a6
Beeby, SP
ba565001-2812-4300-89f1-fe5a437ecb0d
Mukherjee, Anisha
a6557fca-b83e-4831-a6c8-222838ededd1
Mitcheson, Paul
d50a092b-8df6-4530-9ac4-76eeead72022
Wright, Steve
cbb57026-3007-4479-8996-1867fdbba217
Yeatman, Eric
7b21b3fc-a815-4305-a75e-c1698ff6dbda
Zhu, Dibin
ec52eae1-39fa-427c-968b-e76089a464a6
Beeby, SP
ba565001-2812-4300-89f1-fe5a437ecb0d

Mukherjee, Anisha, Mitcheson, Paul, Wright, Steve, Yeatman, Eric, Zhu, Dibin and Beeby, SP (2012) Magnetic potential well tuning of resonant cantilever energy harvester. At PowerMEMS 2012 PowerMEMS 2012, United States. 4 pp, pp. 480-483.

Record type: Conference or Workshop Item (Poster)

Abstract

Cantilever energy harvesters have presently been tuned by manipulating beam dimensions or by placement of a tip mass. While these techniques lend themselves well to designing a highly tuned resonance, the design is fixed and each system is unique to a specific frequency. Here we report investigations of magnetic potential well tuning to vary the spring constant, which shifts the resonance. The significance of this work is the design of a harvesting system with variable resonance, adjusted by changing the effective spring constant by means of shaped pole-pieces on a pair of magnets. Wider tuning range with reduced tuning force is thus achieved.

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More information

Published date: December 2012
Venue - Dates: PowerMEMS 2012, United States, 2012-12-01
Organisations: EEE

Identifiers

Local EPrints ID: 345552
URI: https://eprints.soton.ac.uk/id/eprint/345552
PURE UUID: 1303d600-838c-4c5c-97d5-d7f9eab0ae40
ORCID for SP Beeby: ORCID iD orcid.org/0000-0002-0800-1759

Catalogue record

Date deposited: 26 Nov 2012 15:11
Last modified: 06 Jun 2018 13:07

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