CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, CAS Center for Excellence in Complex System Mechanics, University of Science and Technology of China, Hefei, Anhui 230027, PR China.
National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230027, PR China.
ACS Appl Mater Interfaces. 2020 Apr 1;12(13):15675-15685. doi: 10.1021/acsami.9b23547. Epub 2020 Mar 17.
This work reports a novel triple-functional electronic skin (e-skin) which shows both wonderful thermal-magnetic-mechanical sensing performance and interesting magnetic actuation behavior. The flexible e-skin comprises thermo-sensitive, magnetic, and conductive tri-components, and their sensitive characteristics under 5-70 °C, 0-1200 mT, and 0.1-5.1 MΩ are studied, respectively. Owing to the unique piezoresistive characteristic and magnetorheological effect, the e-skin exhibits a rapid response time (38 ms) to the external stimuli. The assembled e-skin with the triple-layer structure can act as a functional sensor to monitor various human motions, magnetic fields, and environmental temperatures. Based on this e-skin, an intelligent magneto-active gripper is further developed, and it can be used to grasp and transport targets by the actuated force of magnetic field under various working conditions. Importantly, the multi-functional sensing capability endows the gripper with real-time deformation and ambient temperature perception characteristics. As a result, because of the ideal multi-field coupling sensing and magnetic active features, this e-skin shows a wide prospect in wearable electronics, man-machine interactions, and intelligent transport systems.
这项工作报道了一种新型的三功能电子皮肤（e-skin），它具有出色的热磁机械传感性能和有趣的磁致动行为。柔性 e-skin 由热敏、磁性和导电三种组件组成，分别研究了它们在 5-70°C、0-1200 mT 和 0.1-5.1 MΩ 下的敏感特性。由于独特的压阻特性和磁流变效应，e-skin 对外界刺激表现出快速的响应时间（38 ms）。具有三层结构的组装 e-skin 可以用作功能传感器，以监测各种人体运动、磁场和环境温度。基于这种 e-skin，进一步开发了一种智能磁动夹爪，它可以在各种工作条件下通过磁场的驱动力来抓取和运输目标。重要的是，多功能传感能力赋予了夹爪实时变形和环境温度感知特性。因此，由于理想的多场耦合传感和磁活性特性，这种 e-skin 在可穿戴电子、人机交互和智能运输系统中具有广阔的前景。
