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A Self-Powered Vibration Sensing System for High-Voltage Transmission Lines with Equipotential Connections
Xueqiong Zhu1, Jinggang Yang1, Chengbo Hu1
1State Grid Jiangsu Electric Power Company Limited Research Institute, Nanjing 211100, China.
Sensors (Basel, Switzerland)
|June 12, 2026
Summary
A self-powered vibration sensing system uses a magnetic energy harvester and graphene sensor for efficient power and data collection. This system shows promise for monitoring vibrations in transmission lines.
Area of Science:
- Energy harvesting
- Sensor technology
- Wireless communication
Background:
- Vibration sensing is crucial for infrastructure monitoring.
- Existing systems often require external power sources.
- Efficient energy harvesting and sensitive detection are needed.
Purpose of the Study:
- To develop a self-powered vibration sensing system.
- To integrate magnetic energy harvesting with graphene sensors.
- To enable wireless transmission of vibration data.
Main Methods:
- Utilized a spatial magnetic field energy harvester.
- Incorporated a duty-cycled circuit for power management and LoRa wireless transmission.
- Employed a piezoresistive graphene-based sensor for vibration detection.
Main Results:
- The energy harvester produced 729 μW at 0.11 mT and 50 Hz.
- The system demonstrated closed-loop self-powered operation.
- The graphene sensor accurately captured composite vibrations at 4 Hz and 50 Hz.
Conclusions:
- The proposed system offers a viable self-powered solution for vibration sensing.
- It shows significant potential for transmission-line monitoring applications.
- This integrated approach enhances monitoring efficiency and reliability.
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