Omnidirectional Fingertip Pressure Sensor Using Hall Effect

When grasping objects with uneven or varying shapes, accurate pressure measurement on robot fingers is critical for precise robotic gripping operations. However, measuring the pressure from the sides of the fingertips remains challenging owing to the poor omnidirectionality of the pressure sensor. I...

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Autores principales:	Moo-Jung Seo, Jae-Chern Yoo
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	omnidirectional pressure sensor fingertip Hall effect electromagnetic silicone elastomer Chemical technology TP1-1185
Acceso en línea:	https://doaj.org/article/1b9686918e064ea9b01e9e5d37b3cb9e
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id	oai:doaj.org-article:1b9686918e064ea9b01e9e5d37b3cb9e
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spelling	oai:doaj.org-article:1b9686918e064ea9b01e9e5d37b3cb9e2021-11-11T19:05:21ZOmnidirectional Fingertip Pressure Sensor Using Hall Effect10.3390/s212170721424-8220https://doaj.org/article/1b9686918e064ea9b01e9e5d37b3cb9e2021-10-01T00:00:00Zhttps://www.mdpi.com/1424-8220/21/21/7072https://doaj.org/toc/1424-8220When grasping objects with uneven or varying shapes, accurate pressure measurement on robot fingers is critical for precise robotic gripping operations. However, measuring the pressure from the sides of the fingertips remains challenging owing to the poor omnidirectionality of the pressure sensor. In this study, we propose an omnidirectional sensitive pressure sensor using a cone-shaped magnet slider and Hall sensor embedded in a flexible elastomer, which guarantees taking pressure measurements from any side of the fingertip. The experimental results indicate that the proposed pressure sensor has a high sensitivity (61.34 mV/kPa) in a wide sensing range (4–90 kPa) without blind spots on the fingertip, which shows promising application prospects in robotics.Moo-Jung SeoJae-Chern YooMDPI AGarticleomnidirectionalpressure sensorfingertipHall effectelectromagneticsilicone elastomerChemical technologyTP1-1185ENSensors, Vol 21, Iss 7072, p 7072 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	omnidirectional pressure sensor fingertip Hall effect electromagnetic silicone elastomer Chemical technology TP1-1185
spellingShingle	omnidirectional pressure sensor fingertip Hall effect electromagnetic silicone elastomer Chemical technology TP1-1185 Moo-Jung Seo Jae-Chern Yoo Omnidirectional Fingertip Pressure Sensor Using Hall Effect
description	When grasping objects with uneven or varying shapes, accurate pressure measurement on robot fingers is critical for precise robotic gripping operations. However, measuring the pressure from the sides of the fingertips remains challenging owing to the poor omnidirectionality of the pressure sensor. In this study, we propose an omnidirectional sensitive pressure sensor using a cone-shaped magnet slider and Hall sensor embedded in a flexible elastomer, which guarantees taking pressure measurements from any side of the fingertip. The experimental results indicate that the proposed pressure sensor has a high sensitivity (61.34 mV/kPa) in a wide sensing range (4–90 kPa) without blind spots on the fingertip, which shows promising application prospects in robotics.
format	article
author	Moo-Jung Seo Jae-Chern Yoo
author_facet	Moo-Jung Seo Jae-Chern Yoo
author_sort	Moo-Jung Seo
title	Omnidirectional Fingertip Pressure Sensor Using Hall Effect
title_short	Omnidirectional Fingertip Pressure Sensor Using Hall Effect
title_full	Omnidirectional Fingertip Pressure Sensor Using Hall Effect
title_fullStr	Omnidirectional Fingertip Pressure Sensor Using Hall Effect
title_full_unstemmed	Omnidirectional Fingertip Pressure Sensor Using Hall Effect
title_sort	omnidirectional fingertip pressure sensor using hall effect
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/1b9686918e064ea9b01e9e5d37b3cb9e
work_keys_str_mv	AT moojungseo omnidirectionalfingertippressuresensorusinghalleffect AT jaechernyoo omnidirectionalfingertippressuresensorusinghalleffect
_version_	1718431629970505728

Omnidirectional Fingertip Pressure Sensor Using Hall Effect

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