Flexible Tactile Electronic Skin Sensor with 3D Force Detection Based on Porous CNTs/PDMS Nanocomposites.
Flexible Tactile Electronic Skin Sensor with 3D Force Detection Based on Porous CNTs/PDMS Nanocomposites.
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基于多孔 CNT/PDMS 纳米复合材料的具有 3D 力检测功能的柔性触觉电子皮肤传感器
DOI：
10.1007/s40820-019-0288-7
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发表时间：
2019-07-16
影响因子：
26.6
通讯作者：
Xue N
中科院分区：
文献类型：
--
作者：
Sun X;Sun J;Li T;Zheng S;Wang C;Tan W;Zhang J;Liu C;Ma T;Qi Z;Liu C;Xue N
柔性触觉传感器在人体生理监测、机器人操作和人机交互等领域有着广泛的应用。然而，具有高灵敏度、宽感知范围和三维力检测能力的可穿戴柔性触觉传感器的研究仍然具有很大的挑战性。本文提出了一种基于碳纳米管（CNTs）/聚二甲基硅氧烷（PDMS）纳米复合材料的柔性触觉电子皮肤传感器，用于三维接触力检测。三维力是从传感元件中四个专门设计的单元的组合中获得的。由于纳米复合材料的双面粗糙多孔结构和特定的表面形貌，压阻式传感器具有高灵敏度，在600 Pa范围内为12.1 kPa− 1，在超过1 kPa的区域中为0.68 kPa− 1，以及在2.3 N− 1范围内为59.9 N− < 0.05 N and >1，在< 0.6 N的区域中为切向力，具有3.1 ms的超低响应时间。此外，在人体监测的多功能检测与单一的传感器单元和传感器阵列集成到一个机器人手臂的物体抓取控制，显示在智能机器人的应用能力。
Flexible tactile sensors have broad applications in human physiological monitoring, robotic operation and human–machine interaction. However, the research of wearable and flexible tactile sensors with high sensitivity, wide sensing range and ability to detect three-dimensional (3D) force is still very challenging. Herein, a flexible tactile electronic skin sensor based on carbon nanotubes (CNTs)/polydimethylsiloxane (PDMS) nanocomposites is presented for 3D contact force detection. The 3D forces were acquired from combination of four specially designed cells in a sensing element. Contributed from the double-sided rough porous structure and specific surface morphology of nanocomposites, the piezoresistive sensor possesses high sensitivity of 12.1 kPa−1within the range of 600 Pa and 0.68 kPa−1in the regime exceeding 1 kPa for normal pressure, as well as 59.9 N−1in the scope of < 0.05 N and > 2.3 N−1in the region of < 0.6 N for tangential force with ultra-low response time of 3.1 ms. In addition, multi-functional detection in human body monitoring was employed with single sensing cell and the sensor array was integrated into a robotic arm for objects grasping control, indicating the capacities in intelligent robot applications.
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