This $400,000 Project Grant award from the National Science Foundation's (NSF) Engineering program (CFDA 47.041) will fund research at the University of Southern California (USC) to develop a non-resonant electromagnetic vibration energy harvester with a magnetic gear for use in wearable technology. The goal is to efficiently generate electrical power from human motion, such as walking, to continuously power wearable devices without the need for frequent battery recharging or replacement. The proposed research will explore innovative approaches to address the challenges of low-frequency, low-acceleration vibration associated with human motion, including the use of ferrofluid-based suspensions and diamagnetic levitation to enable frictionless relative movement between internal magnet and coil arrays. Additionally, a linear magnetic gear will be incorporated to increase the relative velocity and power generation. The research aims to produce a compact, lightweight vibration energy harvester under 1 cc and 1 gram that can generate up to 1 milliwatt of power, which could significantly aid the power requirements of wearable technologies. The award has a performance period from October 1, 2025, to September 30, 2028, and does not involve any sub-awards.
Mod # | Description | Reason For Modification | Federal Obligation (Click to sort descending) | Date (Click to sort ascending) |
|---|---|---|---|---|
| Not listed | $400.0k | 7/9/25 |