Preload-Free Conformal Integration of Tactile Sensors on the Fingertip's Curved Surface.

ABSTRACT: Humans could sensitively perceive and identify objects through dense mechanoreceptors distributed on the skin of curved fingertips. Inspired by this biological structure, this study presents a general conformal integration method for flexible tactile sensors on curved fingertip surfaces. By adopting a spherical partition design and an inverse mode auxiliary layering process, it ensures the uniform distribution of stress at different curvatures. The sensor adopts a 3 × 3 tactile array configuration, replicating the 3D curved surface distribution of human mechanoreceptors. By analyzing multi-point outputs, the sensor reconstructs contact pressure gradients and infers the softness or stiffness of touched objects, thereby realizing both structural and functional bionics. These sensors exhibit

SUBMITTER: Liu L 

PROVIDER: S-EPMC12838850 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature