Closed loop frequency tuning of a vibration-based micro-generator
Closed loop frequency tuning of a vibration-based micro-generator
This paper presents a tunable electromagnetic vibration-based micro-generator with closed loop frequency tuning. Frequency tuning is realized by applying an axial tensile force to the micro-generator. A closed-loop frequency tuning system has been developed to control the tuning process so that the generator always operates at the ambient vibration frequency to make the entire process automatic. Experimentally the resonant frequency has been successfully tuned from 67.6 to 98 Hz when various axial tensile forces were applied to the structure. The generator produced a power of 61.6 to 156.6 μW over the tuning range when excited at vibrations of 0.588 m/s2.
229-232
Zhu, Dibin
ec52eae1-39fa-427c-968b-e76089a464a6
Roberts, Stephen
fef5d01c-92bd-44cf-93f0-923ec24f8875
Tudor, John
46eea408-2246-4aa0-8b44-86169ed601ff
Beeby, Steve
ba565001-2812-4300-89f1-fe5a437ecb0d
November 2008
Zhu, Dibin
ec52eae1-39fa-427c-968b-e76089a464a6
Roberts, Stephen
fef5d01c-92bd-44cf-93f0-923ec24f8875
Tudor, John
46eea408-2246-4aa0-8b44-86169ed601ff
Beeby, Steve
ba565001-2812-4300-89f1-fe5a437ecb0d
Zhu, Dibin, Roberts, Stephen, Tudor, John and Beeby, Steve
(2008)
Closed loop frequency tuning of a vibration-based micro-generator.
PowerMEMS 2008+ microEMS2008, Sendai, Japan.
09 - 12 Nov 2008.
.
Record type:
Conference or Workshop Item
(Poster)
Abstract
This paper presents a tunable electromagnetic vibration-based micro-generator with closed loop frequency tuning. Frequency tuning is realized by applying an axial tensile force to the micro-generator. A closed-loop frequency tuning system has been developed to control the tuning process so that the generator always operates at the ambient vibration frequency to make the entire process automatic. Experimentally the resonant frequency has been successfully tuned from 67.6 to 98 Hz when various axial tensile forces were applied to the structure. The generator produced a power of 61.6 to 156.6 μW over the tuning range when excited at vibrations of 0.588 m/s2.
Text
CLOSED_LOOP_FREQUENCY_TUNING_OF_A_VIBRATION-BASED_MICRO-GENERATOR.pdf
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More information
Published date: November 2008
Additional Information:
Event Dates: November 9-12, 2008
Venue - Dates:
PowerMEMS 2008+ microEMS2008, Sendai, Japan, 2008-11-09 - 2008-11-12
Organisations:
EEE
Identifiers
Local EPrints ID: 266932
URI: http://eprints.soton.ac.uk/id/eprint/266932
PURE UUID: c64b9829-eaa5-43a3-b870-c8232a652fdb
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Date deposited: 20 Nov 2008 17:10
Last modified: 15 Mar 2024 02:46
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