Details

Autor(en) / Beteiligte

• Huang, Jianren
• Chen, Anbang
• Han, Songjiu
• Wu, Qirui
• Zhu, Jundong
• Zhang, Jiayu
• Chen, Yujia
• Liu, Jiantao
• Guan, Lunhui

Titel

Tough and Robust Mechanically Interlocked Gel–Elastomer Hybrid Electrode for Soft Strain Gauge

Ist Teil von

• Advanced science, 2023-07, Vol.10 (21), p.e2301116-n/a

Ort / Verlag

Germany: John Wiley & Sons, Inc

Erscheinungsjahr

2023

Link zum Volltext

Quelle

Free E-Journal (出版社公開部分のみ）

Beschreibungen/Notizen

• Soft strain gauges provide a flexible and versatile alternative to traditional rigid and inextensible gauges, overcoming issues such as impedance mismatch, the limited sensing range, and fatigue/fracture. Although several materials and structural designs are used to fabricate soft strain gauges, achieving multi‐functionality for applications remains a significant challenge. Herein, a mechanically interlocked gel–elastomer hybrid material is exploited for soft strain gauge. Such a material design provides exceptional fracture energy of 59.6 kJ m−2 and a fatigue threshold of 3300 J m−2, along with impressive strength and stretchability. The hybrid material electrode possesses excellent sensing performances under both static and dynamic loading conditions. It boasts a tiny detection limit of 0.05% strain, ultrafast time resolution of 0.495 ms, and high linearity. This hybrid material electrode can accurately detect full‐range human‐related frequency vibrations ranging from 0.5 to 1000 Hz, enabling the measurement of physiological parameters. Additionally, the patterned soft strain gauge, created through lithography, demonstrates superior signal–noise rate and electromechanical robustness against deformation. By integrating a multiple‐channel device, an intelligent motion detection system is developed, which can classify six typical human body movements with the assistance of machine learning. This innovation is expected to drive advancements in wearable device technology. A tough and robust mechanically interlocked gel–elastomer hybrid material presents excellent strain sensing performances within static and dynamic loading. Through the lithography fabrication, the material is exploited for the fabrication of soft strain gauge, and exhibits superior signal–noise‐rate and electromechanical robustness. Then, an intelligent human motion detection system is constructed by integrating multiple channel soft strain gauge.