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This study aims to compare all MSMA power harvester studies reported to date and identify which design(s) yield highest power and efficiency. The study considers the location of the coil as the main differentiator of the reported designs and starts by generating open circuit voltage with a coil around the MSMA and a biaxial biased magnetic field. The experimental results obtained were compared with the results reported for other power harvesting systems, by normalizing the results with respect to experimental parameters like frequency, number of turns of the pickup coil, cross-sectional area of the pickup coil and sample size. Normalized experimental parameters were then used to calculate and compare the maximum electrical power output of the various power harvesting systems. Results suggest that the side coil setup produces a higher power as compared to the surrounding coil setup. This is primarily because, under the magneto-mechanical loading conditions specific to power harvesting, the maximum change in the MSMAs’ magnetization and correspondingly the largest change in magnetic flux density occurs across its thickness not along its length.
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