Bioinspired Tactile Sensation Based on Synergistic Microcrack-Bristle Structure Design toward High Mechanical Sensitivity and Direction-Resolving Capability
作者机构：School of Mechanical EngineeringSichuan UniversityChengdu 610065China Med+X Center for ManufacturingWest China HospitalSichuan UniversityChengdu 610041China State Key Laboratory of Polymer Materials EngineeringPolymer Research Institute of Sichuan UniversityChengdu 610065China
出 版 物：《Research》 (研究（英文）)
年 卷 期：2024年第2023卷第1期
页 面：611-624页
核心收录：
学科分类：0710[理学-生物学] 08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0836[工学-生物工程] 0811[工学-控制科学与工程]
基 金：the Sichuan Science and Technology Program(2022YFS0025) the project“Key Technologies and Applications of Sensitive Components for Pathogenic Microorganisms and Metabolic Markers of Misease”(2021YFB3201200) This work was also supported by the“Fundamental Research Funds for the Central Universities of China.”
主 题：crack sensation directions
摘 要：Natural tactile sensation is complex,which involves not only contact force intensity detection but also the perception of the force direction,the surface texture,and other mechanical ***,the vast majority of the developed tactile sensors can only detect the normal force,but usually cannot resolve shear force or even distinguish the directions of the ***,we present a new paradigm of bioinspired tactile sensors for resolving both the intensity and the directions of mechanical stimulations via synergistic microcrack-bristle structure design and cross-shaped configuration *** microcrack sensing structure gives high mechanical sensitivity to the tactile sensors,and the synergistic bristle structure further amplifies the sensitivity of the *** cross-shaped configuration engineering of the synergistic microcrack-bristle structure further endows the tactile sensors with good capability to detect and distinguish the directions of the applied mechanical *** as-fabricated tactile sensors exhibit a high sensitivity(25.76 N^(−1)),low detection limit(5.4 mN),desirable stability(over 2,500 cycles),and good capability to resolve both mechanical intensity and directional *** promising application scenarios,surface texture recognition and biomimetic path explorations are successfully demonstrated with these tactile *** newly proposed tactile sensation strategy and technology have great potential applications in ingenious tactile sensation and construction of various robotic and bionic prostheses with high operational dexterity.
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