1D Nanomaterial‐Based Highly Stretchable Strain Sensors for Human Movement Monitoring and Human–Robotic Interactive Systems,Advanced Electronic Materials

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1D Nanomaterial‐Based Highly Stretchable Strain Sensors for Human Movement Monitoring and Human–Robotic Interactive Systems
Advanced Electronic Materials ( IF 5.3 ) Pub Date : 2020-09-06 , DOI: 10.1002/aelm.202000547
Abhishek Singh Dahiya ₁ , Thierry Gil ₂ , Jerome Thireau ₃ , Nadine Azemard ₂ , Alain Lacampagne ₃ , Benoit Charlot ₄ , Aida Todri‐Sanial ₂

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This paper describes a facile strategy of micromolding‐in‐capillary process to fabricate stretchable strain sensors wherein, the sensing material is wrapped within silicone rubber (Dragon Skin [DS]) to form a sandwich‐like structure. Two different 1D sensing materials are exploited to fabricate and study strain sensing performance of such device structure, namely multi‐walled carbon nanotubes (MWCNTs) and silver nanowires (AgNWs). The fabricated strain sensors using MWCNT exhibits wide sensing range (2–180%), and moderately high sensing performance with outstanding durability (over 6000 cycles). It is found that MWCNT presents a strong strain‐dependent character in the 45–120% elongation regime. On the other hand, very high gauge factor of >10⁶ is achieved using AgNWs at 30% strain with good stability (over 100 cycles). Sensing mechanisms for both 1D conductive sensing materials are discussed. They can be applied for human motion monitoring such as finger, knee, and wrist bending movements to enable human physiological parameters to be registered and analyzed continuously. They are also employed in multichannel and interactive electronic system to be used as a control mechanism for teleoperation for robotic end‐effectors. The developed sensors have potential applications in health diagnosis and human–machine interaction.

中文翻译：

基于一维纳米材料的高度可拉伸应变传感器，用于人体运动监测和人体机器人交互系统

本文介绍了一种微细的毛细管微成型工艺来制造可拉伸应变传感器的策略，其中，传感材料包裹在硅橡胶（Dragon Skin [DS]）中以形成三明治结构。开发了两种不同的一维传感材料来制造和研究这种器件结构的应变传感性能，即多壁碳纳米管（MWCNT）和银纳米线（AgNWs）。使用MWCNT制作的应变传感器具有宽广的感测范围（2-180％），以及适度的高感测性能和出色的耐久性（超过6000个循环）。结果发现，MWCNT在45–120％的延伸率下表现出很强的应变依赖性。另一方面，> 10 ^6的极高应变系数使用AgNW在30％的应变下具有良好的稳定性（超过100个循环）可以达到此目的。讨论了两种一维导电传感材料的传感机制。它们可用于人体运动监测，例如手指，膝盖和腕部弯曲运动，以使人体生理参数得以连续记录和分析。它们还用于多通道和交互式电子系统中，用作机器人末端执行器遥操作的控制机制。研发的传感器在健康诊断和人机交互方面具有潜在的应用。

更新日期：2020-10-11

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