Cowpea-structured PVDF/ZnO nanofibers based flexible self-powered piezoelectric bending motion sensor towards remote control of gestures
Cowpea-structured PVDF/ZnO nanofibers based flexible self-powered piezoelectric bending motion sensor towards remote control of gestures
复制标题
基于豇豆结构的PVDF/ZnO纳米纤维的柔性自供电压电弯曲运动传感器用于远程手势控制
DOI：
10.1016/j.nanoen.2018.10.049
复制
发表时间：
2019-01-01
期刊：
影响因子：
17.6
通讯作者：
Yang, Weiqing
中科院分区：
文献类型：
--
作者：
Deng, Weili;Yang, Tao;Yang, Weiqing
交互式人机界面（iHMI）是连接人类和机器人的桥梁，对感知压力和弯曲角度的变化有重要要求。设计了一种基于豇豆结构PVDF/ZnO纳米纤维（CPZNs）的柔性自供电压电传感器（PES），用于人机交互系统中的手势远程控制。由于杂化PVDF/ZnO的协同压电效应和聚合物的柔性，该PES表现出优异的弯曲灵敏度为4.4 mV deg（-1），范围广泛，从44度到122度，快速响应时间为76 ms，和良好的机械稳定性。此外，PES可在弯曲和压下两种模式下工作，压下灵敏度为0.33 V kPa（-1），响应时间为16 ms。集成到iHMI中后，PES可适应性地覆盖在不同的曲面上，具有准确的弯曲角度记录和快速识别功能，实现智能人机交互。在此基础上，成功地实现了机器人手以与人手同步动作的形式进行远程控制的应用。这种基于CPZNs的自供电PES在其结构和基本机制上是独特的，并且在iHMI中具有潜在的应用前景。
Interactive human-machine interface (iHMI) is a bridge connecting human beings and robots, which has an important requirement for perceiving the change of pressure and bending angle. Here, we designed a flexible self-powered piezoelectric sensor (PES) based on the cowpea-structured PVDF/ZnO nanofibers (CPZNs) for remote control of gestures in human-machine interactive system. Due to the synergistic piezoelectric effect of hybrid PVDF/ZnO and the flexibility of polymer, this PES exhibited excellent bending sensitivity of 4.4 mV deg(-1) ranging widely from 44 degrees to 122 degrees, fast response time of 76 ms, and good mechanical stability. Besides, the PES could operate under both bending and pressing mode, show ultrahigh pressing sensitivity of 0.33 V kPa(-1), with response time of 16 ms. When integrated in iHMI, the PES could be conformably covered on different curve surfaces, demonstrated accurate bending angle recording and fast recognition for realizing intelligent human-machine interaction. On this basis, the application of remote control of robotic hand was successfully realized in form of acting the same gesture as human hand synchronously. This CPZNs-based self-powered PES is distinct and unique in its structure and fundamental mechanism, and exhibits a prospective potential application in iHMI.