NDLI: Hybrid energy harvesting from keyboard

Content Provider	IEEE Xplore Digital Library
Author	Beker, L. Zorlu, O. Kulah, H. Muhtaroglu, A.
Copyright Year	2011
Description	Author affiliation: Micro and Nanotechnology, Graduate Program, Middle East Technical, University, Ankara, Turkey (Beker, L.) \|\| METU NCC REDAR, Middle East Technical University, Northern Cyprus Campus, Guzelyurt, Mersin 10 Turkey (Muhtaroglu, A.) \|\| METU-MEMS Center, Middle East Technical University, Ankara, Turkey (Zorlu, O.; Kulah, H.)
Abstract	This paper presents a hybrid energy harvester which combines piezoelectric (PZT) and electromagnetic (EM) transduction mechanisms to scavenge vibration energy from a keyboard. The system comprises of improvements to the dome structure presented in previous studies, in which only PZT transduction mechanism was used to harvest 16.95 μW of experimentally verified power. An in-house modeling and simulation tool is first introduced in this work to evaluate the integration of EM transduction into the PZT system. The tool combines analytical mechanical equations and FEM results for magnetic fields for the optimization of the electromagnetically generated power. Two designs of different cost are then compared. It is concluded that the design utilizing the frequency-up-conversion technique at an incrementally higher cost is superior due to significantly higher contribution to the generated power compared to the alternative implementation without frequency-up-conversion. Modeling and simulations show an additional 2.81 μW power can be generated through EM integration to the previous PZT based keyboard energy harvester system.
Starting Page	1
Ending Page	4
File Size	324021
Page Count	4
File Format	PDF
ISBN	9781467304665
e-ISBN	9781467304658
e-ISBN	9781467304641
DOI	10.1109/ICEAC.2011.6136691
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-11-30
Publisher Place	Turkey
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Coils Vibrations Finite element method Piezoelectric conversion Magnetomechanical effects Magnetic resonance Keyboards Frequency-up-conversion Energy harvesting Mathematical model Electromagnetic conversion
Content Type	Text
Resource Type	Article

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2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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