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This chapter illustrates the design and development process along with the experimentation of a novel repulsive magnetic-type vibration energy harvester (RM-VEH) for powering wireless sensor nodes. The proposed architecture exploits magnetic repulsion between two oscillating systems to enhance energy harvesting efficiency. The first system is composed of a cantilever beam with a Neodymium (NdFeB) permanent magnet at its free end, enclosed by three microfabricated planar coils. The second system integrates a spiral spring surrounded by a copper-wound coil and a microfabricated planar coil. The prototype of RM-VEH was fabricated using various technique including microfabrication, 3D printing, and conventional machining. Upon testing it was observed that the RM-VEH generates 140 μW of power at a resonant frequency of 15 Hz under an acceleration level of 0.2 g at matching impedance. The output power clearly indicates the potential of the repulsive magnetic architecture to considerably improve the output power and power density of vibration energy harvesters, making it a favorable solution for low-power electronics.

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Repulsive Magnetic type Vibration Energy Harvester Using Electromagnetic Transduction for Wireless Sensor Nodes: Design, Development, and Experimentation

  • 会议论文

  • 发表日期：

    2026年

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  • Riaz Muhammad,
  • Isa Nader Isa Alkhabbaz,
  • Ali Sadeq Abdulla Al-Saegh,
  • Rasheed Mansoor Ali,
  • Iftikhar Ahmad,
  • Wajid Khan,
  • Murat Demiral

摘要

This chapter illustrates the design and development process along with the experimentation of a novel repulsive magnetic-type vibration energy harvester (RM-VEH) for powering wireless sensor nodes. The proposed architecture exploits magnetic repulsion between two oscillating systems to enhance energy harvesting efficiency. The first system is composed of a cantilever beam with a Neodymium (NdFeB) permanent magnet at its free end, enclosed by three microfabricated planar coils. The second system integrates a spiral spring surrounded by a copper-wound coil and a microfabricated planar coil. The prototype of RM-VEH was fabricated using various technique including microfabrication, 3D printing, and conventional machining. Upon testing it was observed that the RM-VEH generates 140 μW of power at a resonant frequency of 15 Hz under an acceleration level of 0.2 g at matching impedance. The output power clearly indicates the potential of the repulsive magnetic architecture to considerably improve the output power and power density of vibration energy harvesters, making it a favorable solution for low-power electronics.