Characterization of variable-sensitivity force sensor using stiffness change of shape-memory polymer based on temperature

Abstract In the present study, we propose a variable-sensitivity force sensor using a shape-memory polymer (SMP), the stiffness of which varies according to the temperature. Since the measurement range and sensitivity can be changed, it is not necessary to replace the force sensor to match the measu...

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Autores principales:	Kazuto Takashima, Jo Kobuchi, Norihiro Kamamichi, Kentaro Takagi, Toshiharu Mukai
Formato:	article
Lenguaje:	EN
Publicado:	SpringerOpen 2021
Materias:	Shape-memory polymer Force sensor Glass transition temperature Cantilever Strain gauge System identification Technology T Mechanical engineering and machinery TJ1-1570 Control engineering systems. Automatic machinery (General) TJ212-225 Machine design and drawing TJ227-240 Technology (General) T1-995 Industrial engineering. Management engineering T55.4-60.8 Automation T59.5 Information technology T58.5-58.64
Acceso en línea:	https://doaj.org/article/518b39870ffd4aa69294efb35baadccc
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spelling	oai:doaj.org-article:518b39870ffd4aa69294efb35baadccc2021-11-14T12:06:21ZCharacterization of variable-sensitivity force sensor using stiffness change of shape-memory polymer based on temperature10.1186/s40648-021-00210-82197-4225https://doaj.org/article/518b39870ffd4aa69294efb35baadccc2021-11-01T00:00:00Zhttps://doi.org/10.1186/s40648-021-00210-8https://doaj.org/toc/2197-4225Abstract In the present study, we propose a variable-sensitivity force sensor using a shape-memory polymer (SMP), the stiffness of which varies according to the temperature. Since the measurement range and sensitivity can be changed, it is not necessary to replace the force sensor to match the measurement target. Shape-memory polymers are often described as two-phase structures comprising a lower-temperature “glassy” hard phase and a higher-temperature “rubbery” soft phase. The relationship between the applied force and the deformation of the SMP changes depending on the temperature. The proposed sensor consists of strain gauges bonded to an SMP bending beam and senses the applied force by measuring the strain. Therefore, the force measurement range and the sensitivity can be changed according to the temperature. In our previous study, we found that a sensor with one strain gauge and a steel plate had a small error and a large sensitivity range. Therefore, in the present study, we miniaturize this type of sensor. Moreover, in order to describe the viscoelastic behavior more accurately, we propose a transfer function using a generalized Maxwell model. We verify the proposed model experimentally and estimated the parameters by system identification. In addition, we realize miniaturization of the sensor and achieve the same performance as in our previous study. It is shown that the proposed transfer function can capture the viscoelastic behavior of the proposed SMP sensor quite well.Kazuto TakashimaJo KobuchiNorihiro KamamichiKentaro TakagiToshiharu MukaiSpringerOpenarticleShape-memory polymerForce sensorGlass transition temperatureCantileverStrain gaugeSystem identificationTechnologyTMechanical engineering and machineryTJ1-1570Control engineering systems. Automatic machinery (General)TJ212-225Machine design and drawingTJ227-240Technology (General)T1-995Industrial engineering. Management engineeringT55.4-60.8AutomationT59.5Information technologyT58.5-58.64ENROBOMECH Journal, Vol 8, Iss 1, Pp 1-15 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Shape-memory polymer Force sensor Glass transition temperature Cantilever Strain gauge System identification Technology T Mechanical engineering and machinery TJ1-1570 Control engineering systems. Automatic machinery (General) TJ212-225 Machine design and drawing TJ227-240 Technology (General) T1-995 Industrial engineering. Management engineering T55.4-60.8 Automation T59.5 Information technology T58.5-58.64
spellingShingle	Shape-memory polymer Force sensor Glass transition temperature Cantilever Strain gauge System identification Technology T Mechanical engineering and machinery TJ1-1570 Control engineering systems. Automatic machinery (General) TJ212-225 Machine design and drawing TJ227-240 Technology (General) T1-995 Industrial engineering. Management engineering T55.4-60.8 Automation T59.5 Information technology T58.5-58.64 Kazuto Takashima Jo Kobuchi Norihiro Kamamichi Kentaro Takagi Toshiharu Mukai Characterization of variable-sensitivity force sensor using stiffness change of shape-memory polymer based on temperature
description	Abstract In the present study, we propose a variable-sensitivity force sensor using a shape-memory polymer (SMP), the stiffness of which varies according to the temperature. Since the measurement range and sensitivity can be changed, it is not necessary to replace the force sensor to match the measurement target. Shape-memory polymers are often described as two-phase structures comprising a lower-temperature “glassy” hard phase and a higher-temperature “rubbery” soft phase. The relationship between the applied force and the deformation of the SMP changes depending on the temperature. The proposed sensor consists of strain gauges bonded to an SMP bending beam and senses the applied force by measuring the strain. Therefore, the force measurement range and the sensitivity can be changed according to the temperature. In our previous study, we found that a sensor with one strain gauge and a steel plate had a small error and a large sensitivity range. Therefore, in the present study, we miniaturize this type of sensor. Moreover, in order to describe the viscoelastic behavior more accurately, we propose a transfer function using a generalized Maxwell model. We verify the proposed model experimentally and estimated the parameters by system identification. In addition, we realize miniaturization of the sensor and achieve the same performance as in our previous study. It is shown that the proposed transfer function can capture the viscoelastic behavior of the proposed SMP sensor quite well.
format	article
author	Kazuto Takashima Jo Kobuchi Norihiro Kamamichi Kentaro Takagi Toshiharu Mukai
author_facet	Kazuto Takashima Jo Kobuchi Norihiro Kamamichi Kentaro Takagi Toshiharu Mukai
author_sort	Kazuto Takashima
title	Characterization of variable-sensitivity force sensor using stiffness change of shape-memory polymer based on temperature
title_short	Characterization of variable-sensitivity force sensor using stiffness change of shape-memory polymer based on temperature
title_full	Characterization of variable-sensitivity force sensor using stiffness change of shape-memory polymer based on temperature
title_fullStr	Characterization of variable-sensitivity force sensor using stiffness change of shape-memory polymer based on temperature
title_full_unstemmed	Characterization of variable-sensitivity force sensor using stiffness change of shape-memory polymer based on temperature
title_sort	characterization of variable-sensitivity force sensor using stiffness change of shape-memory polymer based on temperature
publisher	SpringerOpen
publishDate	2021
url	https://doaj.org/article/518b39870ffd4aa69294efb35baadccc
work_keys_str_mv	AT kazutotakashima characterizationofvariablesensitivityforcesensorusingstiffnesschangeofshapememorypolymerbasedontemperature AT jokobuchi characterizationofvariablesensitivityforcesensorusingstiffnesschangeofshapememorypolymerbasedontemperature AT norihirokamamichi characterizationofvariablesensitivityforcesensorusingstiffnesschangeofshapememorypolymerbasedontemperature AT kentarotakagi characterizationofvariablesensitivityforcesensorusingstiffnesschangeofshapememorypolymerbasedontemperature AT toshiharumukai characterizationofvariablesensitivityforcesensorusingstiffnesschangeofshapememorypolymerbasedontemperature
_version_	1718429463460446208

Characterization of variable-sensitivity force sensor using stiffness change of shape-memory polymer based on temperature

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