Abstract
In this work, screen-printed piezoelectric PZT films are printed on a meandering-shaped 301SS stainless steel substrate to harvest power from current-carrying wires by piezo-electromagnetic transduction. Process optimization lead to good adhesion of the PZT on the stainless steel substrate and minimum bending of the multilayer {electrode/PZT/electrode/stainless substrate}. A permanent magnet is integrated on the substrate tip for electromagnetic coupling. A power of 0.05 µW is harvested from 1 A of current flowing in a wire 12.5 mm from the tip mass. The normalized power is comparable to other available MEMS-based technologies in the literature. The development of a wireless sensor network for real time electricity monitoring application is also discussed.
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