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Ultra-Stretchable Helical Fiber Sensor Based on Electromagnetic Induction for Real-Time Human-Machine Interaction.
Jieyao Qin1,2, Junyao Gong1,3, Sijie Zhou1,4
1State Key Laboratory of New Textile Materials and Advanced Processing, Wuhan Textile University, Wuhan 430200, P. R. China.
Nano Letters
|July 16, 2025
Summary
Researchers developed a novel helical strain-sensing fiber for wearable electronics. This flexible sensor enables underwater human-machine interaction (HMI) systems, controlling devices via hand gestures.
Area of Science:
- Materials Science
- Wearable Technology
- Sensor Technology
Background:
- Fiber-based sensors offer flexibility and breathability for integration into clothing.
- Wearable electronic devices require advanced sensing materials for diverse applications.
- Electromagnetic induction presents a viable method for developing novel sensor technologies.
Purpose of the Study:
- To develop a novel helical strain-sensing fiber utilizing electromagnetic induction.
- To investigate the performance of the fiber under high strain conditions.
- To demonstrate a human-machine interaction (HMI) system using the developed fiber for underwater applications.
Main Methods:
- Fabrication of a helical fiber sensor using Ecoflex and magnetic nanoparticles.
- Characterization of the sensor's strain sensing capabilities via electromagnetic induction.
- Testing of the sensor's stability and durability over repeated cycles.
- Development and implementation of an underwater HMI system controlled by hand gestures detected by the fiber sensor.
Main Results:
- The helical strain-sensing fiber achieved an impressive maximum strain of 2485%.
- The sensor demonstrated stable voltage output (up to 90 μV) over 2000 cycles, indicating high durability.
- A functional underwater HMI system was successfully developed, enabling remote control of a submarine model.
- Real-time gesture interaction was achieved, showcasing the system's responsiveness.
Conclusions:
- The novel intelligent sensing material, a helical strain-sensing fiber, shows significant potential for advanced wearable electronic devices.
- The developed system opens new research avenues for underwater HMI and Internet of Things (IoT) applications.
- This technology facilitates seamless human-device interaction in challenging environments.
