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Tactile Interaction Sensor with Millimeter Sensing Acuity

In this article we report on a 3 × 3 mm tactile interaction sensor that is able to simultaneously detect pressure level, pressure distribution, and shear force direction. The sensor consists of multiple mechanical switches under a conducting diaphragm. An external stimulus is measured by the deflect...

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Detalles Bibliográficos
Autores principales: Choi, Eunsuk, Kim, Sunjin, Gong, Jinsil, Sun, Hyeonjeong, Kwon, Minjin, Seo, Hojun, Sul, Onejae, Lee, Seung-Beck
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8272110/
https://www.ncbi.nlm.nih.gov/pubmed/34206489
http://dx.doi.org/10.3390/s21134274
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author Choi, Eunsuk
Kim, Sunjin
Gong, Jinsil
Sun, Hyeonjeong
Kwon, Minjin
Seo, Hojun
Sul, Onejae
Lee, Seung-Beck
author_facet Choi, Eunsuk
Kim, Sunjin
Gong, Jinsil
Sun, Hyeonjeong
Kwon, Minjin
Seo, Hojun
Sul, Onejae
Lee, Seung-Beck
author_sort Choi, Eunsuk
collection PubMed
description In this article we report on a 3 × 3 mm tactile interaction sensor that is able to simultaneously detect pressure level, pressure distribution, and shear force direction. The sensor consists of multiple mechanical switches under a conducting diaphragm. An external stimulus is measured by the deflection of the diaphragm and the arrangement of mechanical switches, resulting in low noise, high reliability, and high uniformity. Our sensor is able to detect tactile forces as small as ~50 mgf along with the direction of the shear force. It also distinguishes whether there is a normal pressure during slip motion. We also succeed in detecting the contact shape and the contact motion, demonstrating potential applications in robotics and remote input interfaces. Since our sensor has a simple structure and its function depends only on sensor dimensions, not on an active sensing material, in comparison with previous tactile sensors, our sensor shows high uniformity and reliability for an array-type integration.
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spelling pubmed-82721102021-07-11 Tactile Interaction Sensor with Millimeter Sensing Acuity Choi, Eunsuk Kim, Sunjin Gong, Jinsil Sun, Hyeonjeong Kwon, Minjin Seo, Hojun Sul, Onejae Lee, Seung-Beck Sensors (Basel) Communication In this article we report on a 3 × 3 mm tactile interaction sensor that is able to simultaneously detect pressure level, pressure distribution, and shear force direction. The sensor consists of multiple mechanical switches under a conducting diaphragm. An external stimulus is measured by the deflection of the diaphragm and the arrangement of mechanical switches, resulting in low noise, high reliability, and high uniformity. Our sensor is able to detect tactile forces as small as ~50 mgf along with the direction of the shear force. It also distinguishes whether there is a normal pressure during slip motion. We also succeed in detecting the contact shape and the contact motion, demonstrating potential applications in robotics and remote input interfaces. Since our sensor has a simple structure and its function depends only on sensor dimensions, not on an active sensing material, in comparison with previous tactile sensors, our sensor shows high uniformity and reliability for an array-type integration. MDPI 2021-06-22 /pmc/articles/PMC8272110/ /pubmed/34206489 http://dx.doi.org/10.3390/s21134274 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Communication
Choi, Eunsuk
Kim, Sunjin
Gong, Jinsil
Sun, Hyeonjeong
Kwon, Minjin
Seo, Hojun
Sul, Onejae
Lee, Seung-Beck
Tactile Interaction Sensor with Millimeter Sensing Acuity
title Tactile Interaction Sensor with Millimeter Sensing Acuity
title_full Tactile Interaction Sensor with Millimeter Sensing Acuity
title_fullStr Tactile Interaction Sensor with Millimeter Sensing Acuity
title_full_unstemmed Tactile Interaction Sensor with Millimeter Sensing Acuity
title_short Tactile Interaction Sensor with Millimeter Sensing Acuity
title_sort tactile interaction sensor with millimeter sensing acuity
topic Communication
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8272110/
https://www.ncbi.nlm.nih.gov/pubmed/34206489
http://dx.doi.org/10.3390/s21134274
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