Biomimetic Tactile Sensors with Bilayer Fingerprint Ridges Demonstrating Texture Recognition

被引：17

作者：

Choi, Eunsuk ^{[1
]}

Sul, Onejae ^{[2
]}

Lee, Jusin ^{[1
]}

Seo, Hojun ^{[1
]}

Kim, Sunjin ^{[1
]}

Yeom, Seongoh ^{[1
]}

Ryu, Gunwoo ^{[1
]}

Yang, Heewon ^{[1
]}

Shin, Yoonsoo ^{[1
]}

Lee, Seung-Beck ^{[1
,2
]}

机构：

[1] Hanyang Univ, Dept Elect Engn, 222 Wangsimni Ro, Seoul 04763, South Korea

[2] Hanyang Univ, Inst Nano Sci & Technol, 222 Wangsimni Ro, Seoul 04763, South Korea

来源：

MICROMACHINES | 2019年 / 10卷 / 10期

基金：

新加坡国家研究基金会;

关键词：

biomimetic; tactile sensor; fingerprint ridge; piezoelectric sensor; texture discrimination; SKIN; FINE;

D O I：

10.3390/mi10100642

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

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 mu m with only 20-mu m 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.

引用

页数：14

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