Liu Zhi, Hu Xiaonan, Bo Renheng, Yang Youzhou, Cheng Xu, Pang Wenbo, Liu Qing, Wang Yuejiao, Wang Shuheng, Xu Shiwei, Shen Zhangming, Zhang Yihui
Applied Mechanics Laboratory, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, P.R. China.
Laboratory of Flexible Electronics Technology, Tsinghua University, Beijing 100084, P.R. China.
Science. 2024 May 31;384(6699):987-994. doi: 10.1126/science.adk5556. Epub 2024 May 30.
Human skin sensing of mechanical stimuli originates from transduction of mechanoreceptors that converts external forces into electrical signals. Although imitating the spatial distribution of those mechanoreceptors can enable developments of electronic skins capable of decoupled sensing of normal/shear forces and strains, it remains elusive. We report a three-dimensionally (3D) architected electronic skin (denoted as 3DAE-Skin) with force and strain sensing components arranged in a 3D layout that mimics that of Merkel cells and Ruffini endings in human skin. This 3DAE-Skin shows excellent decoupled sensing performances of normal force, shear force, and strain and enables development of a tactile system for simultaneous modulus/curvature measurements of an object through touch. Demonstrations include rapid modulus measurements of fruits, bread, and cake with various shapes and degrees of freshness.
人类皮肤对机械刺激的感知源于机械感受器的转导，该转导将外力转化为电信号。尽管模仿这些机械感受器的空间分布能够推动具备对法向/剪切力和应变进行解耦传感能力的电子皮肤的发展，但这一目标仍难以实现。我们报道了一种三维（3D）架构的电子皮肤（称为3DAE-Skin），其力和应变传感组件以三维布局排列，模仿了人类皮肤中默克尔细胞和鲁菲尼小体的布局。这种3DAE-Skin在法向力、剪切力和应变的解耦传感性能方面表现出色，并能够开发一种通过触摸同时测量物体模量/曲率的触觉系统。演示包括对各种形状和新鲜度的水果、面包和蛋糕进行快速模量测量。
