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Arrayed liquid rotor electret power generator systems

Boland, J. S. and Messenger, J. D. M. and Lo, H. W. and Tai, Y. C. (2005) Arrayed liquid rotor electret power generator systems. In: International Conference on Micro Electro Mechanical Systems, 18th (MEMS 2005), Miami Beach, FL, 30 January-3 February 2005. IEEE , Piscataway, NJ, pp. 618-621. ISBN 0-7803-8732-5

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We report our work on liquid rotor electret power generators (LEPG), LEPG devices are essentially fixed-charged, Teflon-electret capacitors with air-filled gaps and liquid droplets that move by vibration. As the liquid moves into and out of the gaps, a net voltage is generated across the capacitor as image charges on the electrodes redistribute according to the position of the droplets. In this work, we also study serial and parallel arrays of LEPG power generators to increase power output. Power output from parallel arrays scales linearly with number of devices, as expected, to produce power output up to about 10 μW. Our initial results show that series arrays need to be studied more because they involve more complicated impedance matching issues.

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Additional Information:© Copyright 2005 IEEE. Reprinted with permission. Publication Date: 30 Jan.-3 Feb. 2005. Date Published in Issue: 2005-07-05. This work is supported by DARPA MPG program (DAAH01-01-1-R002) and NSF ERC Center for Neuromorphic Systems Engineering at Caltech (EEC9402726).
Funding AgencyGrant Number
Defense Advanced Research Projects AgencyDAAH01-01-1-R002
National Science FoundationEEC-9402726
Subject Keywords:electrets; electric generators; rotors; small electric machines; LEPG devices; Teflon-electret capacitors; air-filled gaps; impedance matching; liquid droplets; liquid rotor electret power generators; parallel array; serial array
Record Number:CaltechAUTHORS:BOLicmems05
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:11558
Deposited By: Kristin Buxton
Deposited On:08 Sep 2008 17:59
Last Modified:24 Apr 2015 16:15

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