High Power Magnetic Field Energy Harvesting through Amplified Magneto‐Mechanical Vibration
Abstract
Internet of Things (IoT) is driving the development of new generation of sensors, communication components, and power sources. Ideally, IoT sensors and communication components are expected to be powered by sustainable energy source freely available in the environment. Here, a breakthrough in this direction is provided by demonstrating high output power energy harvesting from very low amplitude stray magnetic fields, which exist everywhere, through magnetoelectric (ME) coupled magneto‐mechano‐electric (MME) energy conversion. ME coupled MME harvester comprised of multiple layers of amorphous magnetostrictive material, piezoelectric macrofiber composite, and magnetic tip mass, interacts with an external magnetic field to generate electrical energy. Comprehensive experimental investigation and a theoretical model reveal that both the magnetic torque generated through magnetic loading and amplification of magneto‐mechanical vibration by ME coupling contributes toward the generation of high electrical power from the stray magnetic field around power cables of common home appliances. The generated electrical power from the harvester is sufficient for operating microsensors (gyro, temperature, and humidity sensing) and wireless data transmission systems. These results will facilitate the deployment of IoT devices in emerging intelligent infrastructures.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Mar 12, 2018
- Source ID
- 10.1002/aenm.201703313
Entities
People
- Deepam Maurya
- Geon Tae Hwang
- Hyeon Lee
- Jinsung Chun
- Jungho Ryu
- Min Gyu Kang
- Rammohan Sriramdas
- Shashank Priya
Organizations
- Air Force Office of Scientific Research
- Communications-Electronics Research, Development and Engineering Center
- Core Research for Evolutional Science and Technology
- Global Frontier Hybrid Interface Materials
- Ministry of Science, ICT and Future Planning
- National Research Council of Science and Technology
- National Science Foundation
- Office of Naval Research Global
- United States Department of Energy
- Virginia Tech
- Yeungnam University