Jia, YuYan, JizeFeng, TaoDu, SijunFidler, PaulSoga, KenichiMiddleton, CampbellSeshia, Ashwin A.2016-10-032016-10-032015-12-01Y. Jia, S., et. al. (2015). A vibration powered wireless mote on the Forth Road Bridge. Journal of Physics: Conference Series, 660(1), 012094. DOI: 10.1088/1742-6596/660/1/01209410.1088/1742-6596/660/1/012094http://hdl.handle.net/10034/620186The conventional resonant-approaches to scavenge kinetic energy are typically confined to narrow and single-band frequencies. The vibration energy harvester device reported here combines both direct resonance and parametric resonance in order to enhance the power responsiveness towards more efficient harnessing of real-world ambient vibration. A packaged electromagnetic harvester designed to operate in both of these resonant regimes was tested in situ on the Forth Road Bridge. In the field-site, the harvester, with an operational volume of ~126 cm3, was capable of recovering in excess of 1 mW average raw AC power from the traffic-induced vibrations in the lateral bracing structures underneath the bridge deck. The harvester was integrated off-board with a power conditioning circuit and a wireless mote. Duty- cycled wireless transmissions from the vibration-powered mote was successfully sustained by the recovered ambient energy. This limited duration field test provides the initial validation for realising vibration-powered wireless structural health monitoring systems in real world infrastructure, where the vibration profile is both broadband and intermittent.enhttp://creativecommons.org/licenses/by/4.0/Energy harvestingParametric resonanceArticle1742-6596Journal of Physics: Conference Series