Related Experiment Video
Updated: May 17, 2025
06:17
Production of a Strain-Measuring Device with an Improved 3D Printer
Published on: January 30, 2020
5.8K
Flexible Stretchable Strain Sensor Based on LIG/PDMS for Real-Time Health Monitoring of Test Pilots.
Shouqing Li1, Zhanghui Wu2, Hongyun Fan2
1Civil Aviation Administration of China Academy, Civil Aviation Flight University of China, Deyang 618307, China.
Sensors (Basel, Switzerland)
|May 14, 2025
Summary
We developed a highly stretchable strain sensor using laser-induced graphene (LIG) on a flexible substrate. This wearable sensor accurately monitors pilot physiological signals, enhancing flight safety.
Area of Science:
- Materials Science
- Wearable Electronics
- Sensor Technology
Background:
- Flexible strain sensors are crucial for wearable electronics.
- Laser-induced graphene (LIG) offers rapid, sustainable, and cost-effective fabrication.
- Current LIG sensors face limitations in stretchability and conformability due to substrate materials.
Purpose of the Study:
- To develop a high-performance, flexible, and stretchable strain sensor.
- To overcome the substrate limitations of traditional LIG sensors.
- To enable real-time physiological monitoring for civil aviation test pilots.
Main Methods:
- Fabricated graphene on a polyimide (PI) substrate via laser induction.
- Transferred the laser-induced graphene onto a polydimethylsiloxane (PDMS) substrate.
- Characterized sensor performance, including detection limit, response time, and durability.
Main Results:
- Achieved an ultra-low detection limit of 0.1% strain.
- Demonstrated a rapid response time of 150 ms and a wide strain range of 40%.
- Maintained stable performance over 1000 stretching cycles.
- Successfully applied the sensor for real-time monitoring of pilot physiological signals (pulse, movement, blinks).
Conclusions:
- The novel LIG-on-PDMS sensor offers superior stretchability and conformability.
- This technology provides a unique solution for real-time health monitoring of civil aviation test pilots.
- The developed sensor has significant implications for improving flight safety.
