材料科学
压力传感器
制作
灵活性(工程)
墨水池
电子皮肤
触觉传感器
灵敏度(控制系统)
生物医学工程
纳米技术
传感器阵列
计算机科学
机械工程
机器人
电子工程
复合材料
人工智能
工程类
机器学习
病理
统计
数学
替代医学
医学
作者
Xiaojun Chen,Deyun Mo,Haishan Lian,Manfeng Gong,Yihui Luo,Xiaoqun Xia,Shuzhen Jiang
标识
DOI:10.1149/2162-8777/abb587
摘要
Tactile sensors with high flexibility have attracted great interest because of their huge potential in various applications including smart robots, smart prostheses, human-machine interfaces, and biological monitoring electronic devices. However, it remains a critical challenge to develop tactile sensors with both high sensitivity and flexibility. In this work, a flexible 8 × 8 array pressure sensors with GNPs/MWCNT filled conductive composite material on PDMS substrates was proposed using direct-write printing. The printing technology based on the Weissenberg effect had the advantages of rapid supply of fluid and avoiding needle clogging in the printing process, which was suitable for large-area manufacturing of sensor sensitive units. The sensitivity of PDMS-based flexible array pressure sensors in the pressure range of 0–25 kPa and 25–75 kPa reached ∼5.09 MPa −1 and ∼0.0209 kPa −1 , respectively. Response/recovery time reached ∼150 ms and ∼200 ms, respectively. When 1000 cycles were performed in the 0–75 kPa pressure range, the PDMS substrate flexible array pressure sensor had high stability and repeatability. These superior properties are indicative of their great potential in applications such as intelligent robotics, artificial palpation, prosthetics, and wearable devices.
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