Soft Elastomeric Capacitor for Angular Rotation Sensing in Steel Components

The authors have previously proposed corrugated soft elastomeric capacitors (cSEC) to create ultra compliant scalable strain gauges. The cSEC technology has been successfully demonstrated in engineering and biomechanical applications for in-plane strain measurements. This study extends work on the c...

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Autores principales:	Han Liu, Simon Laflamme, Jian Li, Caroline Bennett, William N. Collins, Austin Downey, Paul Ziehl, Hongki Jo
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	flexible strain gauge angular rotation angular motion sensing strain monitoring capacitor bending strain Chemical technology TP1-1185
Acceso en línea:	https://doaj.org/article/3d8a70cca72a4855a6a865a3e0d431b6
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id	oai:doaj.org-article:3d8a70cca72a4855a6a865a3e0d431b6
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spelling	oai:doaj.org-article:3d8a70cca72a4855a6a865a3e0d431b62021-11-11T19:03:22ZSoft Elastomeric Capacitor for Angular Rotation Sensing in Steel Components10.3390/s212170171424-8220https://doaj.org/article/3d8a70cca72a4855a6a865a3e0d431b62021-10-01T00:00:00Zhttps://www.mdpi.com/1424-8220/21/21/7017https://doaj.org/toc/1424-8220The authors have previously proposed corrugated soft elastomeric capacitors (cSEC) to create ultra compliant scalable strain gauges. The cSEC technology has been successfully demonstrated in engineering and biomechanical applications for in-plane strain measurements. This study extends work on the cSEC to evaluate its performance at measuring angular rotation when installed folded at the junction of two plates. The objective is to characterize the sensor’s electromechanical behavior anticipating applications to the monitoring of welded connections in steel components. To do so, an electromechanical model that maps the cSEC signal to bending strain induced by angular rotation is derived and adjusted using a validated finite element model. Given the difficulty in mapping strain measurements to rotation, an algorithm termed angular rotation index (ARI) is formulated to link measurements to angular rotation directly. Experimental work is conducted on a hollow structural section (HSS) steel specimen equipped with cSECs subjected to compression to generate angular rotations at the corners within the cross-section. Results confirm that the cSEC is capable of tracking angular rotation-induced bending strain linearly, however with accuracy levels significantly lower than found over flat configurations. Nevertheless, measurements were mapped to angular rotations using the ARI, and it was found that the ARI mapped linearly to the angle of rotation, with an accuracy of 0.416<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msup><mrow></mrow><mo>∘</mo></msup></semantics></math></inline-formula>.Han LiuSimon LaflammeJian LiCaroline BennettWilliam N. CollinsAustin DowneyPaul ZiehlHongki JoMDPI AGarticleflexible strain gaugeangular rotationangular motion sensingstrain monitoringcapacitorbending strainChemical technologyTP1-1185ENSensors, Vol 21, Iss 7017, p 7017 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	flexible strain gauge angular rotation angular motion sensing strain monitoring capacitor bending strain Chemical technology TP1-1185
spellingShingle	flexible strain gauge angular rotation angular motion sensing strain monitoring capacitor bending strain Chemical technology TP1-1185 Han Liu Simon Laflamme Jian Li Caroline Bennett William N. Collins Austin Downey Paul Ziehl Hongki Jo Soft Elastomeric Capacitor for Angular Rotation Sensing in Steel Components
description	The authors have previously proposed corrugated soft elastomeric capacitors (cSEC) to create ultra compliant scalable strain gauges. The cSEC technology has been successfully demonstrated in engineering and biomechanical applications for in-plane strain measurements. This study extends work on the cSEC to evaluate its performance at measuring angular rotation when installed folded at the junction of two plates. The objective is to characterize the sensor’s electromechanical behavior anticipating applications to the monitoring of welded connections in steel components. To do so, an electromechanical model that maps the cSEC signal to bending strain induced by angular rotation is derived and adjusted using a validated finite element model. Given the difficulty in mapping strain measurements to rotation, an algorithm termed angular rotation index (ARI) is formulated to link measurements to angular rotation directly. Experimental work is conducted on a hollow structural section (HSS) steel specimen equipped with cSECs subjected to compression to generate angular rotations at the corners within the cross-section. Results confirm that the cSEC is capable of tracking angular rotation-induced bending strain linearly, however with accuracy levels significantly lower than found over flat configurations. Nevertheless, measurements were mapped to angular rotations using the ARI, and it was found that the ARI mapped linearly to the angle of rotation, with an accuracy of 0.416<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msup><mrow></mrow><mo>∘</mo></msup></semantics></math></inline-formula>.
format	article
author	Han Liu Simon Laflamme Jian Li Caroline Bennett William N. Collins Austin Downey Paul Ziehl Hongki Jo
author_facet	Han Liu Simon Laflamme Jian Li Caroline Bennett William N. Collins Austin Downey Paul Ziehl Hongki Jo
author_sort	Han Liu
title	Soft Elastomeric Capacitor for Angular Rotation Sensing in Steel Components
title_short	Soft Elastomeric Capacitor for Angular Rotation Sensing in Steel Components
title_full	Soft Elastomeric Capacitor for Angular Rotation Sensing in Steel Components
title_fullStr	Soft Elastomeric Capacitor for Angular Rotation Sensing in Steel Components
title_full_unstemmed	Soft Elastomeric Capacitor for Angular Rotation Sensing in Steel Components
title_sort	soft elastomeric capacitor for angular rotation sensing in steel components
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/3d8a70cca72a4855a6a865a3e0d431b6
work_keys_str_mv	AT hanliu softelastomericcapacitorforangularrotationsensinginsteelcomponents AT simonlaflamme softelastomericcapacitorforangularrotationsensinginsteelcomponents AT jianli softelastomericcapacitorforangularrotationsensinginsteelcomponents AT carolinebennett softelastomericcapacitorforangularrotationsensinginsteelcomponents AT williamncollins softelastomericcapacitorforangularrotationsensinginsteelcomponents AT austindowney softelastomericcapacitorforangularrotationsensinginsteelcomponents AT paulziehl softelastomericcapacitorforangularrotationsensinginsteelcomponents AT hongkijo softelastomericcapacitorforangularrotationsensinginsteelcomponents
_version_	1718431638575120384

Soft Elastomeric Capacitor for Angular Rotation Sensing in Steel Components

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