Imperial College London
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ProfessorAndrewHolmes

Faculty of Engineering, Department of Electrical and Electronic Engineering

Professor of Microelectromechanical Systems
 
 
 
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Contact

 

+44 (0)20 7594 6239a.holmes Website

 
 
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Assistant

 

Ms Susan Brace +44 (0)20 7594 6215

 
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Location

 

701Electrical EngineeringSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Pillatsch:2014:10.1016/j.sna.2013.10.003,
author = {Pillatsch, P and Yeatman, EM and Holmes, AS},
doi = {10.1016/j.sna.2013.10.003},
journal = {Sensors and Actuators A: Physical},
pages = {178--185},
title = {A piezoelectric frequency up-converting energy harvester with rotating proof mass for human body applications},
url = {http://dx.doi.org/10.1016/j.sna.2013.10.003},
volume = {206},
year = {2014}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Energy harvesting from human motion faces the challenges of low frequency and random excitation. One strategy that has been successful in the past is frequency up-conversion. This paper introduces an inertial device that combines this principle, in the form of piezoelectric beam plucking through magnetic coupling with a rotating proof mass. The advantages rotational systems can have for body movements are discussed. The prototype is described and tested in a real world environment during a running race and later on in a laboratory environment on a custom built linear excitation table. Throughout these tests it is confirmed that such a device can operate over a broad range of frequencies and under varying orientations, making it suitable for this intended application. Across frequencies between 0.5 and 4 Hz and accelerations between 1 and 20 m/s2 power outputs in the range of tens of microwatts were achieved, with a peak value of 43 μW at 2 Hz and 20 m/s2 when the rotor went into a continuous rotation.
AU  - Pillatsch,P
AU  - Yeatman,EM
AU  - Holmes,AS
DO  - 10.1016/j.sna.2013.10.003
EP  - 185
PY  - 2014///
SN  - 0924-4247
SP  - 178
TI  - A piezoelectric frequency up-converting energy harvester with rotating proof mass for human body applications
T2  - Sensors and Actuators A: Physical
UR  - http://dx.doi.org/10.1016/j.sna.2013.10.003
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000331505600025&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - https://www.sciencedirect.com/science/article/abs/pii/S0924424713004871?via%3Dihub
VL  - 206
ER  -
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