eprintid: 2428
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/00/24/28
datestamp: 2023-11-09 15:50:39
lastmod: 2023-11-09 15:50:39
status_changed: 2023-11-09 15:43:30
type: article
metadata_visibility: show
creators_name: Ashraf, K.
creators_name: Khir, M.H.M.
creators_name: Dennis, J.O.
title: Analytical investigation of frequency dependence of average power of a vibration energy harvester
ispublished: pub
keywords: Analytical analysis; Analytical investigations; Energy scavenging; Frequency dependence; High-frequency harmonics; Micromachining techniques; Power MEMS; Vibration energy harvesters, Electromechanical coupling; Harmonic analysis; Wireless sensor networks, Energy harvesting
note: cited By 1
abstract: Realization of self powered wireless sensor network has become possible with the recent development in energy harvesting and micromachining techniques. The versatility of vibration energy makes it the most attractive power source for wireless sensors. In several environments, vibration energy is distributed in few harmonics. To effectively scavenge ambient energy, one has to choose the harmonic to which the harvester should be tuned. This paper analytically investigates dependence of the average power of a vibration energy harvester on the frequency of vibration. It is shown that the cubic dependence of the average power on the frequency of vibration holds only when the electromechanical coupling can be increased with the frequency. For a constant electromechanical coupling, the power increases with the fourth power of the driving frequency. When the magnitude of the base acceleration is constant, a high frequency harmonic will give more average power density than a low frequency one. © 2012 IFSA.
date: 2012
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84879772103&partnerID=40&md5=75d810e3ccb529e12465640cc28e213a
full_text_status: none
publication: Sensors and Transducers
volume: 17
number: SPL 12
pagerange: 176-185
refereed: TRUE
issn: 17265479
citation:   Ashraf, K. and Khir, M.H.M. and Dennis, J.O.  (2012) Analytical investigation of frequency dependence of average power of a vibration energy harvester.  Sensors and Transducers, 17 (SPL 12).  pp. 176-185.  ISSN 17265479