A Supersensitive, Multidimensional Flexible Strain Gauge Sensor Based on Ag/PDMS for Human Activities Monitoring
A Supersensitive, Multidimensional Flexible Strain Gauge Sensor Based on Ag/PDMS for Human Activities Monitoring
复制标题
基于 Ag/PDMS 的超灵敏、多维柔性应变传感器，用于人体活动监测
DOI：
10.1038/s41598-020-61658-z
复制
发表时间：
2020-03-13
影响因子：
4.6
通讯作者：
Wang, Lei
中科院分区：
文献类型：
--
作者：
Li, Hui;Zhang, Jinjie;Wang, Lei
为了更全面地监测人体运动状态，需要感知多维刺激信息。在本文中，我们报道了一种基于 Ag/PDMS 复合材料的超灵敏柔性传感器，具有应变和力的传感能力。该制备方法简单快速，只需物理研磨银颗粒并与液体PDMS混合即可。柔性传感器在多维检测方面具有优异的性能。当拉伸至36%时，应变系数高达939，力检测最小分辨率为0.02 N，从微观角度分析了不同填充率和厚度的传感器的传感特性。柔性传感器的多维传感能力极大地扩展了其应用范围。我们通过实验验证了基于Ag/PDMS的传感器在人体动态监测和声音实时检测方面的应用，该传感器在运动识别、触觉感知和软机器人领域显示出巨大的潜力。
For more comprehensive monitoring human state of motion, it is necessary to sense multidimensional stimulus information. In this paper, we reported a supersensitive flexible sensor based on Ag/PDMS composites with sensing abilities of strain and force. The fabrication method is simple and rapid, which only need physically grinding the silver particles and mixing with liquid PDMS. The flexible sensor has excellent performances in multidimensional detection. The strain gauge factor can reach as high as 939 when it was stretched to 36%, and the minimum resolution for force detection is 0.02 N. The sensing characteristic of the sensors with different filling fraction and thickness were analyzed from the microscopic point of view. Multidimensional sensing abilities of flexible sensor have greatly expands its applications. We experimentally verified the Ag/PDMS based sensor in human body dynamic monitoring and sound detecting in real-time, which has shown great potential in motion recognition, haptic perception and soft robotics.