Several proposals are received under TePP to convert kinetic energy into electrical energy. Except few cases, most of such proposals were not supported, considering the engineering challenges. It is interesting to note that parallel efforts in UK has brought out commercial product called micro generators. The PMG17 microgenerators are intended for use on machinery driven by AC motors and harvest the commonly-found "twice-line-frequency" vibration. Even with as little as 25mg (RMS) vibration within a 2Hz bandwidth, they will always produce a minimum power of 0.5mW, while delivering up to 40mW when there is more vibration available. Powering wireless sensor nodes is one industrial application.
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