Compliant Parallel Beam Piezoelectric Array Energy Harvester Based on Non-contact Rotating Magnetic Excitation

Smart wearable systems have revolutionized the way humans interact with technology, providing functions ranging from fitness tracking to medical assistance. However, the sustainability of these systems relies heavily on efficient energy supply mechanisms. To address this challenge, energy harvesting technology has received attention. Among them, rotary piezoelectric energy harvesters have emerged as a promising solution for harnessing human body motion to generate electricity. In this study, we propose a non-contact rotating magnetic excitation energy harvester and test the dynamic response of the harvester. The test results show that the energy harvester has a good working bandwidth and can achieve uninterrupted energy harvesting under low-frequency excitation and high-frequency excitation.