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Biomimetic Tactile Sensors with Bilayer Fingerprint Ridges Demonstrating Texture Recognition

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...

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Autores principales: Choi, Eunsuk, Sul, Onejae, Lee, Jusin, Seo, Hojun, Kim, Sunjin, Yeom, Seongoh, Ryu, Gunwoo, Yang, Heewon, Shin, Yoonsoo, Lee, Seung-Beck
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6843519/
https://www.ncbi.nlm.nih.gov/pubmed/31557853
http://dx.doi.org/10.3390/mi10100642
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author Choi, Eunsuk
Sul, Onejae
Lee, Jusin
Seo, Hojun
Kim, Sunjin
Yeom, Seongoh
Ryu, Gunwoo
Yang, Heewon
Shin, Yoonsoo
Lee, Seung-Beck
author_facet Choi, Eunsuk
Sul, Onejae
Lee, Jusin
Seo, Hojun
Kim, Sunjin
Yeom, Seongoh
Ryu, Gunwoo
Yang, Heewon
Shin, Yoonsoo
Lee, Seung-Beck
author_sort Choi, Eunsuk
collection PubMed
description 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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spelling pubmed-68435192019-11-25 Biomimetic Tactile Sensors with Bilayer Fingerprint Ridges Demonstrating Texture Recognition Choi, Eunsuk Sul, Onejae Lee, Jusin Seo, Hojun Kim, Sunjin Yeom, Seongoh Ryu, Gunwoo Yang, Heewon Shin, Yoonsoo Lee, Seung-Beck Micromachines (Basel) Article 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. MDPI 2019-09-25 /pmc/articles/PMC6843519/ /pubmed/31557853 http://dx.doi.org/10.3390/mi10100642 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Choi, Eunsuk
Sul, Onejae
Lee, Jusin
Seo, Hojun
Kim, Sunjin
Yeom, Seongoh
Ryu, Gunwoo
Yang, Heewon
Shin, Yoonsoo
Lee, Seung-Beck
Biomimetic Tactile Sensors with Bilayer Fingerprint Ridges Demonstrating Texture Recognition
title Biomimetic Tactile Sensors with Bilayer Fingerprint Ridges Demonstrating Texture Recognition
title_full Biomimetic Tactile Sensors with Bilayer Fingerprint Ridges Demonstrating Texture Recognition
title_fullStr Biomimetic Tactile Sensors with Bilayer Fingerprint Ridges Demonstrating Texture Recognition
title_full_unstemmed Biomimetic Tactile Sensors with Bilayer Fingerprint Ridges Demonstrating Texture Recognition
title_short Biomimetic Tactile Sensors with Bilayer Fingerprint Ridges Demonstrating Texture Recognition
title_sort biomimetic tactile sensors with bilayer fingerprint ridges demonstrating texture recognition
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6843519/
https://www.ncbi.nlm.nih.gov/pubmed/31557853
http://dx.doi.org/10.3390/mi10100642
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