电容感应
压力传感器
触觉传感器
干扰(通信)
材料科学
声学
拉伤
机器人
计算机科学
机制(生物学)
纳米技术
机械工程
人工智能
物理
工程类
电信
操作系统
内科学
频道(广播)
医学
量子力学
作者
Qi Su,Qiang Zou,Yang Li,Yuzhen Chen,Shan-Yuan Teng,Jane T. Kelleher,Romain Nith,Ping Cheng,Nan Li,Wei Liu,Shilei Dai,Youdi Liu,Alex Mazursky,Jie Xu,Lihua Jin,Pedro Lopes,Sihong Wang
出处
期刊:Science Advances
[American Association for the Advancement of Science (AAAS)]
日期:2021-11-24
卷期号:7 (48)
被引量:178
标识
DOI:10.1126/sciadv.abi4563
摘要
A stretchable pressure sensor is a necessary tool for perceiving physical interactions that take place on soft/deformable skins present in human bodies, prosthetic limbs, or soft robots. However, all existing types of stretchable pressure sensors have an inherent limitation, which is the interference of stretching with pressure sensing accuracy. Here, we present a design for a highly stretchable and highly sensitive pressure sensor that can provide unaltered sensing performance under stretching, which is realized through the synergistic creations of an ionic capacitive sensing mechanism and a mechanically hierarchical microstructure. Via this optimized structure, our sensor exhibits 98% strain insensitivity up to 50% strain and a low pressure detection limit of 0.2 Pa. With the capability to provide all the desired characteristics for quantitative pressure sensing on a deformable surface, this sensor has been used to realize the accurate sensation of physical interactions on human or soft robotic skin.
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