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A Polymer-Based Capacitive Sensing Array for Normal and Shear Force Measurement
In this work, we present the development of a polymer-based capacitive sensing array. The proposed device is capable of measuring normal and shear forces, and can be easily realized by using micromachining techniques and flexible printed circuit board (FPCB) technologies. The sensing array consists...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Molecular Diversity Preservation International (MDPI)
2010
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3230994/ https://www.ncbi.nlm.nih.gov/pubmed/22163466 http://dx.doi.org/10.3390/s101110211 |
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author | Cheng, Ming-Yuan Lin, Chun-Liang Lai, Yu-Tse Yang, Yao-Joe |
author_facet | Cheng, Ming-Yuan Lin, Chun-Liang Lai, Yu-Tse Yang, Yao-Joe |
author_sort | Cheng, Ming-Yuan |
collection | PubMed |
description | In this work, we present the development of a polymer-based capacitive sensing array. The proposed device is capable of measuring normal and shear forces, and can be easily realized by using micromachining techniques and flexible printed circuit board (FPCB) technologies. The sensing array consists of a polydimethlysiloxane (PDMS) structure and a FPCB. Each shear sensing element comprises four capacitive sensing cells arranged in a 2 × 2 array, and each capacitive sensing cell has two sensing electrodes and a common floating electrode. The sensing electrodes as well as the metal interconnect for signal scanning are implemented on the FPCB, while the floating electrodes are patterned on the PDMS structure. This design can effectively reduce the complexity of the capacitive structures, and thus makes the device highly manufacturable. The characteristics of the devices with different dimensions were measured and discussed. A scanning circuit was also designed and implemented. The measured maximum sensitivity is 1.67%/mN. The minimum resolvable force is 26 mN measured by the scanning circuit. The capacitance distributions induced by normal and shear forces were also successfully captured by the sensing array. |
format | Online Article Text |
id | pubmed-3230994 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2010 |
publisher | Molecular Diversity Preservation International (MDPI) |
record_format | MEDLINE/PubMed |
spelling | pubmed-32309942011-12-07 A Polymer-Based Capacitive Sensing Array for Normal and Shear Force Measurement Cheng, Ming-Yuan Lin, Chun-Liang Lai, Yu-Tse Yang, Yao-Joe Sensors (Basel) Article In this work, we present the development of a polymer-based capacitive sensing array. The proposed device is capable of measuring normal and shear forces, and can be easily realized by using micromachining techniques and flexible printed circuit board (FPCB) technologies. The sensing array consists of a polydimethlysiloxane (PDMS) structure and a FPCB. Each shear sensing element comprises four capacitive sensing cells arranged in a 2 × 2 array, and each capacitive sensing cell has two sensing electrodes and a common floating electrode. The sensing electrodes as well as the metal interconnect for signal scanning are implemented on the FPCB, while the floating electrodes are patterned on the PDMS structure. This design can effectively reduce the complexity of the capacitive structures, and thus makes the device highly manufacturable. The characteristics of the devices with different dimensions were measured and discussed. A scanning circuit was also designed and implemented. The measured maximum sensitivity is 1.67%/mN. The minimum resolvable force is 26 mN measured by the scanning circuit. The capacitance distributions induced by normal and shear forces were also successfully captured by the sensing array. Molecular Diversity Preservation International (MDPI) 2010-11-15 /pmc/articles/PMC3230994/ /pubmed/22163466 http://dx.doi.org/10.3390/s101110211 Text en © 2010 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 license (http://creativecommons.org/licenses/by/3.0/. (http://creativecommons.org/licenses/by/3.0/) ) |
spellingShingle | Article Cheng, Ming-Yuan Lin, Chun-Liang Lai, Yu-Tse Yang, Yao-Joe A Polymer-Based Capacitive Sensing Array for Normal and Shear Force Measurement |
title | A Polymer-Based Capacitive Sensing Array for Normal and Shear Force Measurement |
title_full | A Polymer-Based Capacitive Sensing Array for Normal and Shear Force Measurement |
title_fullStr | A Polymer-Based Capacitive Sensing Array for Normal and Shear Force Measurement |
title_full_unstemmed | A Polymer-Based Capacitive Sensing Array for Normal and Shear Force Measurement |
title_short | A Polymer-Based Capacitive Sensing Array for Normal and Shear Force Measurement |
title_sort | polymer-based capacitive sensing array for normal and shear force measurement |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3230994/ https://www.ncbi.nlm.nih.gov/pubmed/22163466 http://dx.doi.org/10.3390/s101110211 |
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