Abstract
This paper reports the design, fabrication, and testing of a rotating, oscillating mass electromagnetic generator for wearable applications. This work presents a custom design architecture to evaluate the differences in generation output for swinging motion when driven at different frequencies, and load conditions. Body movement is characterized by large amplitude motion, such as the limbs when walking, whereas machine vibration displacement is relatively small and well catered with linear energy harvesters. The proposed study evaluates a rotational generator mounted on a swinging arm driven by a sinusoidal input motion to determine the parameters that lead to higher power output. Power measurement up to 0.25 μW was generated under sinusoidal input motion.
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