Related Experiment Video
Updated: Feb 28, 2026
06:17
Production of a Strain-Measuring Device with an Improved 3D Printer
Published on: January 30, 2020
6.5K
Low-Power Three-Dimensional Graphene-Based Flexible Magnetic Sensor
1State Key Laboratory of Submarine Geoscience, School of Automation and Intelligent Sensing, Shanghai Jiao Tong University, Shanghai 200240, China.
Polymers
|February 27, 2026
Summary
This study introduces a flexible, low-power 3D magnetic sensor using a novel heterostructure. It enables real-time 3D magnetic field detection for applications in robotics and wearable devices.
Area of Science:
- Materials Science
- Electronics Engineering
- Sensor Technology
Background:
- Flexible magnetic sensors are crucial for human-machine interaction in robotics, VR, and IoT.
- Existing sensors often lack multi-directional detection capabilities or require complex configurations.
Purpose of the Study:
- To develop a flexible, low-power, three-dimensional (3D) magneto-impedance (MI) sensor.
- To achieve real-time decoupling of magnetic field components in X, Y, and Z directions using a single sensor.
Main Methods:
- Fabrication of a planar FeSiB/PI/graphene microcoil/PI/FeSiB heterostructure.
- Utilizing the magneto-impedance effect of soft magnetic materials and the magnetoresistance effect of graphene.
- Employing weak current excitation for synergistic modulation and signal decoupling.
Main Results:
- The proposed sensor achieves low power consumption (76 μW).
- High resolutions were demonstrated: 31 nT/Hz1/2 (X), 36 nT/Hz1/2 (Y), and 6992 nT/Hz1/2 (Z).
- The sensor exhibits excellent anti-bending performance, adapting to complex deformations.
Conclusions:
- The developed 3D MI sensor offers real-time, multi-directional magnetic field detection with low power consumption.
- Its flexibility and robustness make it suitable for intelligent wearable devices.
- This work provides novel insights for future flexible electronics and sensor technologies.
