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Biomimetic Tactile Sensors with Bilayer Fingerprint Ridges Demonstrating Texture Recognition. | LitMetric

Biomimetic Tactile Sensors with Bilayer Fingerprint Ridges Demonstrating Texture Recognition.

Micromachines (Basel)

Department of Electronic Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Korea.

Published: September 2019

AI Article Synopsis

  • The article discusses a biomimetic tactile sensor designed to replicate human fingerprint ridges and epidermal features, called the surface kinetic interface (SKIN).
  • The SKIN consists of a bilayer polymer structure with varying elasticity, enhancing its sensitivity to touch by mimicking the hard and soft aspects of human skin.
  • Testing demonstrated that the sensor can detect small surface structures under 100 μm and recognize different textures, suggesting its potential applications in artificial and robotic fingers for improved tactile feedback.

Article Abstract

In this article, we report on a biomimetic tactile sensor that has a surface kinetic interface (SKIN) that imitates human epidermal fingerprint ridges and the epidermis. The SKIN is composed of a bilayer polymer structure with different elastic moduli. We improved the tactile sensitivity of the SKIN by using a hard epidermal fingerprint ridge and a soft epidermal board. We also evaluated the effectiveness of the SKIN layer in shear transfer characteristics while varying the elasticity and geometrical factors of the epidermal fingerprint ridges and the epidermal board. The biomimetic tactile sensor with the SKIN layer showed a detection capability for surface structures under 100 μm with only 20-μm height differences. Our sensor could distinguish various textures that can be easily accessed in everyday life, demonstrating that the sensor may be used for texture recognition in future artificial and robotic fingers.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6843519PMC
http://dx.doi.org/10.3390/mi10100642DOI Listing

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