Flexible Stretchable Strain Sensor Based on LIG/PDMS for Real-Time Health Monitoring of Test Pilots
In the rapidly advancing era of intelligent technology, flexible strain sensors are emerging as a key component in wearable electronics. Laser-induced graphene (LIG) stands out as a promising fabrication method due to its rapid processing, environmental sustainability, low cost, and superior physico...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-05-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/25/9/2884 |
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| author | Shouqing Li Zhanghui Wu Hongyun Fan Mian Zhong Xiaoqing Xing Yongzheng Wang Huaxiao Yang Qijian Liu Deyin Zhang |
| author_facet | Shouqing Li Zhanghui Wu Hongyun Fan Mian Zhong Xiaoqing Xing Yongzheng Wang Huaxiao Yang Qijian Liu Deyin Zhang |
| author_sort | Shouqing Li |
| collection | DOAJ |
| description | In the rapidly advancing era of intelligent technology, flexible strain sensors are emerging as a key component in wearable electronics. Laser-induced graphene (LIG) stands out as a promising fabrication method due to its rapid processing, environmental sustainability, low cost, and superior physicochemical properties. However, the stretchability and conformability of LIG are often limited by the substrate material, hindering its application in scenarios requiring high deformation. To address this issue, we propose a high-performance flexible and stretchable strain sensor fabricated by generating graphene on a polyimide (PI) substrate using laser induction and subsequently transferred onto a polydimethylsiloxane (PDMS). The resultant sensor demonstrates an ultra-low detection limit (0.1%), a rapid response time (150 ms), a wide strain range (40%), and retains stable performance after 1000 stretching cycles. Notably, this sensor has been successfully applied to the real-time monitoring of civil aviation test pilots during flight for the first time, enabling the accurate detection of physiological signals such as pulse, hand movements, and blink frequency. This study introduces a unique and innovative solution for the real-time health monitoring of civil aviation test pilots, with significant implications for enhancing flight safety. |
| format | Article |
| id | doaj-art-93d08fdeacc94cc0b3e1f5e2eb9e4cf2 |
| institution | OA Journals |
| issn | 1424-8220 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj-art-93d08fdeacc94cc0b3e1f5e2eb9e4cf22025-08-20T01:49:18ZengMDPI AGSensors1424-82202025-05-01259288410.3390/s25092884Flexible Stretchable Strain Sensor Based on LIG/PDMS for Real-Time Health Monitoring of Test PilotsShouqing Li0Zhanghui Wu1Hongyun Fan2Mian Zhong3Xiaoqing Xing4Yongzheng Wang5Huaxiao Yang6Qijian Liu7Deyin Zhang8Civil Aviation Administration of China Academy, Civil Aviation Flight University of China, Deyang 618307, ChinaCollege of Aviation and Electronics and Electrical, Civil Aviation Flight University of China, Deyang 618307, ChinaCollege of Aviation and Electronics and Electrical, Civil Aviation Flight University of China, Deyang 618307, ChinaCollege of Aviation and Electronics and Electrical, Civil Aviation Flight University of China, Deyang 618307, ChinaCollege of Aviation and Electronics and Electrical, Civil Aviation Flight University of China, Deyang 618307, ChinaCivil Aviation Flight Test Institute, Civil Aviation Flight University of China, Deyang 618307, ChinaMianyang Branch, Civil Aviation Flight University of China, Mianyang 621000, ChinaCollege of Computer Science, Civil Aviation Flight University of China, Deyang 618307, ChinaCollege of Aviation and Electronics and Electrical, Civil Aviation Flight University of China, Deyang 618307, ChinaIn the rapidly advancing era of intelligent technology, flexible strain sensors are emerging as a key component in wearable electronics. Laser-induced graphene (LIG) stands out as a promising fabrication method due to its rapid processing, environmental sustainability, low cost, and superior physicochemical properties. However, the stretchability and conformability of LIG are often limited by the substrate material, hindering its application in scenarios requiring high deformation. To address this issue, we propose a high-performance flexible and stretchable strain sensor fabricated by generating graphene on a polyimide (PI) substrate using laser induction and subsequently transferred onto a polydimethylsiloxane (PDMS). The resultant sensor demonstrates an ultra-low detection limit (0.1%), a rapid response time (150 ms), a wide strain range (40%), and retains stable performance after 1000 stretching cycles. Notably, this sensor has been successfully applied to the real-time monitoring of civil aviation test pilots during flight for the first time, enabling the accurate detection of physiological signals such as pulse, hand movements, and blink frequency. This study introduces a unique and innovative solution for the real-time health monitoring of civil aviation test pilots, with significant implications for enhancing flight safety.https://www.mdpi.com/1424-8220/25/9/2884flexible wearable sensorlaser-induced graphenePDMSreal-time monitoringstretchable strain sensor |
| spellingShingle | Shouqing Li Zhanghui Wu Hongyun Fan Mian Zhong Xiaoqing Xing Yongzheng Wang Huaxiao Yang Qijian Liu Deyin Zhang Flexible Stretchable Strain Sensor Based on LIG/PDMS for Real-Time Health Monitoring of Test Pilots Sensors flexible wearable sensor laser-induced graphene PDMS real-time monitoring stretchable strain sensor |
| title | Flexible Stretchable Strain Sensor Based on LIG/PDMS for Real-Time Health Monitoring of Test Pilots |
| title_full | Flexible Stretchable Strain Sensor Based on LIG/PDMS for Real-Time Health Monitoring of Test Pilots |
| title_fullStr | Flexible Stretchable Strain Sensor Based on LIG/PDMS for Real-Time Health Monitoring of Test Pilots |
| title_full_unstemmed | Flexible Stretchable Strain Sensor Based on LIG/PDMS for Real-Time Health Monitoring of Test Pilots |
| title_short | Flexible Stretchable Strain Sensor Based on LIG/PDMS for Real-Time Health Monitoring of Test Pilots |
| title_sort | flexible stretchable strain sensor based on lig pdms for real time health monitoring of test pilots |
| topic | flexible wearable sensor laser-induced graphene PDMS real-time monitoring stretchable strain sensor |
| url | https://www.mdpi.com/1424-8220/25/9/2884 |
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