Self-powered autonomous wireless sensor node using vibration energy harvesting
Self-powered autonomous wireless sensor node using vibration energy harvesting
This paper reports the development and implementation of an energy aware autonomous wireless condition monitoring sensor system (ACMS) powered by ambient vibrations. An electromagnetic (EM) generator has been designed to harvest sufficient energy to power a radio-frequency (RF) linked accelerometer-based sensor system. The ACMS is energy aware and will adjust the measurement/transmit duty cycle according to the available energy; this is typically every 3 s at 0.6 m s?2 rms acceleration and can be as low as 0.2 m s?2 rms with a duty cycle around 12 min. The EM generator has a volume of only 150 mm3 producing an average power of 58 ?W at 0.6m s?2 rms acceleration at a frequency of 52 Hz. In addition, a voltage multiplier circuit is shown to increase the electrical damping compared to a purely resistive load; this allows for an average power of 120 ?W to be generated at 1.7 m s?2 rms acceleration. The ACMS has been successfully demonstrated on an industrial air compressor and an office air conditioning unit, continuously monitoring vibration levels and thereby simulating a typical condition monitoring application
125202
Torah, Russel
7147b47b-db01-4124-95dc-90d6a9842688
Glynne-Jones, Peter
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Tudor, John
46eea408-2246-4aa0-8b44-86169ed601ff
O'Donnell, T.
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Roy, S.
ac99cb46-0b15-486d-bd52-8a0523d7dc39
Beeby, Steve
ba565001-2812-4300-89f1-fe5a437ecb0d
24 October 2008
Torah, Russel
7147b47b-db01-4124-95dc-90d6a9842688
Glynne-Jones, Peter
6ca3fcbc-14db-4af9-83e2-cf7c8b91ef0d
Tudor, John
46eea408-2246-4aa0-8b44-86169ed601ff
O'Donnell, T.
0e926cf1-4660-4260-bd7b-00444090e528
Roy, S.
ac99cb46-0b15-486d-bd52-8a0523d7dc39
Beeby, Steve
ba565001-2812-4300-89f1-fe5a437ecb0d
Torah, Russel, Glynne-Jones, Peter, Tudor, John, O'Donnell, T., Roy, S. and Beeby, Steve
(2008)
Self-powered autonomous wireless sensor node using vibration energy harvesting.
Measurement Science and Technology, 19 (12), .
(doi:10.1088/0957-0233/19/12/125202).
Abstract
This paper reports the development and implementation of an energy aware autonomous wireless condition monitoring sensor system (ACMS) powered by ambient vibrations. An electromagnetic (EM) generator has been designed to harvest sufficient energy to power a radio-frequency (RF) linked accelerometer-based sensor system. The ACMS is energy aware and will adjust the measurement/transmit duty cycle according to the available energy; this is typically every 3 s at 0.6 m s?2 rms acceleration and can be as low as 0.2 m s?2 rms with a duty cycle around 12 min. The EM generator has a volume of only 150 mm3 producing an average power of 58 ?W at 0.6m s?2 rms acceleration at a frequency of 52 Hz. In addition, a voltage multiplier circuit is shown to increase the electrical damping compared to a purely resistive load; this allows for an average power of 120 ?W to be generated at 1.7 m s?2 rms acceleration. The ACMS has been successfully demonstrated on an industrial air compressor and an office air conditioning unit, continuously monitoring vibration levels and thereby simulating a typical condition monitoring application
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Published date: 24 October 2008
Organisations:
EEE
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Local EPrints ID: 266983
URI: http://eprints.soton.ac.uk/id/eprint/266983
ISSN: 1361-6501
PURE UUID: e49da498-e94b-42d6-89b9-98db987ee32b
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Date deposited: 16 Dec 2008 13:14
Last modified: 15 Mar 2024 03:20
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Author:
Russel Torah
Author:
John Tudor
Author:
T. O'Donnell
Author:
S. Roy
Author:
Steve Beeby
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