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北京时间2024年7月5日晚八点，iCANX Talks 第193期邀请到了清华大学 Yihui Zhang教授进行分享！此外，南方科技大学Qi Ge,浙江清华柔性电了技术研究院Ying Chen，新加坡国立大学Changsheng Wu等教授担任嘉宾，北京大学Mengdi Han教授担任主持人。

 

这将是一场汇聚顶尖学者的盛会，共同探讨前沿科技与学术挑战！更多精彩，敬请期待！

 

【嘉宾介绍】

 

 

 

 

Yihui Zhang

 

清华大学

 

A three-dimensionally architected electronic skin mimicking human mechanosensation

 

【Abstract】

 

Human skin sensing of mechanical stimuli originates from transduction of mechanoreceptors that converts external forces into electrical signals that propagate to the central nervous system.  While 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.  In this talk, I will introduce a three-dimensionally 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.  The 3D configuration of force and strain sensors and a heterogeneous encapsulation strategy enable the differentiation of normal or shear forces and induced strain.  Integration of the 3DAE-Skin with data acquisition/processing modules aided by deep learning algorithms allows development of a tactile system capable of normal/shear force sensing with spatial resolution comparable to human skin, as well as simultaneous modulus and curvature measurements through a simple touch of an object.  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体内的机械感受器，这些感受器可将外力转化为电信号，并通过中枢系统传输到大脑。模仿这些机械感受器的空间分布形式，使其能够独立感知压力、剪切力和应变，可有效促进电子皮肤领域的发展，但相关工作鲜有报道。本手机版将介绍一种具有三维架构的电子皮肤（简称“3DAE-Skin”），其亮点在于力和应变传感器的空间布局，这一布局模仿了人类皮肤中的Merkel细胞和Ruffini小体的空间分布。这种传感器的空间分布和所提出的异质封装策略使3DAE-Skin具备了出色的解耦测量能力，能够同时解耦测量压力、剪切力和应变。将该电子皮肤器件与信号处理模块、深度学习算法相结合，开发出具有与人类皮肤感知空间分辨率相当的人工触觉系统，该系统通过简单的触摸操作即可同时测量物体局部的弹性模量和主曲率。为展示该触觉系统的实际应用价值，我们利用该系统测量了具有不同形状的水果、面包等食物的新鲜度随时间的变化。

 

【BIOGRAPHY】

 

Yihui Zhang is a Professor of Engineering Mechanics at Tsinghua University.  His current research interests include mechanically guided 3D assembly, microrobots, and mechanics of flexible structures.  He has published > 180 peer-reviewed papers in journals including Science, Nature, JMPS (the best solid-mechanics journal), and etc, as of May 2024.  He is an inventor on 9 China patents and 3 US patents.  Dr. Zhang is the recipient of several honors and awards, including, Society of Engineering Science’s James R. Rice Medal (2024), CSTAM Science and Technology Award for Young Investigators (2023), NSFC National Science Fund for Distinguished Young Scholars (2022), ASME Gustus L. Larson Memorial Award (2022), The Xplorer Prize (2021), ASME Thomas J.R. Hughes Young Investigator Award (2019), Society of Engineering Science’s Young Investigator Medal (2018), ASME Sia Nemat-Nasser Early Career Award (2018), Eshelby Mechanics Award for Young Faculty (2017), ASME Melville Medal (2017), Qiu Shi Outstanding Young Scholar Award (2016), and MIT Technology Reviews 35 Innovators Under 35 (Global) (2016).  He is a Deputy Editor of Science Advances, an editor of Mechanics of Materials, an associate editor of International Journal of Smart and Nano Materials, and a past associate editor of Science Advances, ASME Journal of Applied Mechanics and Research.

 

张一慧，清华大学工程力学系长聘教授。长期从事力学驱动的三维微纳结构组装、微型机器人、柔性结构力学等方面的研究。截至2024年5月，在Science、Nature、JMPS（固体力学领域顶刊）等高水平期刊发表学术论文180余篇；获得授权的明升中国发明专利9项、美国发明专利3项。曾获美国工程app学会James R. Rice奖章（2024）、明升中国力学学会青年科技奖（2023）、国家杰出青年app基金（2022）、美国机械工程师学会Gustus L. Larson Memorial Award（2022）、app探索奖（2021）、美国机械工程师学会Thomas J.R. Hughes青年学者奖（2019）、美国机械工程师学会Sia Nemat-Nasser早期职业生涯奖（2018）、美国工程app学会青年学者奖章（2018）、Eshelby青年力学教授奖（2017）、美国机械工程师学会Melville Medal（2017）、香港求是杰出青年学者奖（2016）、麻省理工学院技术评论“全球35位35岁以下创新者”（2016）等荣誉。目前担任学术期刊《Science Advances》的Deputy Editor，《Mechanics of Materials》的Editor，《International Journal of Smart and Nano Materials》的Associate Editor。曾任《Science Advances》、《ASME-Journal of Applied Mechanics》和《Research》的Associate Editor。