Affiliation:
1. Institute of Engineering Thermophysics Chinese Academy of Sciences Beijing 100190 China
2. Nanjing Institute of Future Energy System Nanjing 211135 China
3. University of Chinese Academy of Sciences Beijing 100049 China
4. Key Laboratory of Bionic Engineering of Ministry of Education Jilin University Changchun 130022 China
5. Institute of Advanced Photonics Technology School of Information Engineering Guangdong University of Technology Guangzhou 51006 China
6. University of Chinese Academy of Sciences Nanjing 211135 China
7. Innovation Academy for Light‐duty Gas Turbine Chinese Academy of Sciences Beijing 100190 China
Abstract
AbstractIntelligent sensor devices are widely used in the fields of aerospace, automobile, biomedicine, and electronics. However, using traditional bulk sensors, it is challenging to meet the needs of health monitoring, human‐computer interaction, environmental monitoring, and wearable portable electronic devices because of the limitations of flexibility and wearability. Novel flexible sensors should be characterized with stretchable, bendable, breathability, and distributed sensing properties. Herein, a flexible multi‐functional fiber sensor for stress and strain monitoring is prepared using thermal drawing technology. The as‐developed sensor is used for real‐time monitoring of small stress and strain with an accuracy of 1 g (1.7 kPa), positioning spatial resolution of 2 cm, and a strain range of 30 000 µɛ with an accuracy of 86 µɛ. It can sense single‐ and multi‐points weak pressure at the same time during keyboard testing. Furthermore, pulse and breath monitoring are also demonstrated. These results reveal the high sensitivity, lightweight, and good flexibility of this multi‐functional fiber sensor, promoting its applications in fields such as biosensing, aircrafts, and intelligent robot.
Funder
National Key Research and Development Program of China
National Natural Science Foundation of China
Chinese Academy of Sciences
Subject
Industrial and Manufacturing Engineering,Mechanics of Materials,General Materials Science