Cargando…

A Theoretical Study on an Elastic Polymer Thin Film-Based Capacitive Wind-Pressure Sensor

This study is devoted to the design of an elastic polymer thin film-based capacitive wind-pressure sensor to meet the anticipated use for real-time monitoring of structural wind pressure in civil engineering. This sensor is composed of four basic units: lateral elastic deflection unit of a wind-driv...

Descripción completa

Detalles Bibliográficos
Autores principales: Li, Xue, Sun, Jun-Yi, Shi, Bin-Bin, Zhao, Zhi-Hang, He, Xiao-Ting
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7570084/
https://www.ncbi.nlm.nih.gov/pubmed/32961997
http://dx.doi.org/10.3390/polym12092133
_version_ 1783596868078403584
author Li, Xue
Sun, Jun-Yi
Shi, Bin-Bin
Zhao, Zhi-Hang
He, Xiao-Ting
author_facet Li, Xue
Sun, Jun-Yi
Shi, Bin-Bin
Zhao, Zhi-Hang
He, Xiao-Ting
author_sort Li, Xue
collection PubMed
description This study is devoted to the design of an elastic polymer thin film-based capacitive wind-pressure sensor to meet the anticipated use for real-time monitoring of structural wind pressure in civil engineering. This sensor is composed of four basic units: lateral elastic deflection unit of a wind-driven circular polymer thin film, parallel plate capacitor with a movable circular electrode plate, spring-driven return unit of the movable electrode plate, and dielectric materials between electrode plates. The capacitance of the capacitor varies with the parallel move of the movable electrode plate which is first driven by the lateral elastic deflection of the wind-driven film and then is, after the wind pressure is reduced or eliminated, returned quickly by the drive springs. The closed-form solution for the contact problem between the wind-driven thin film and the spring-driven movable electrode plate is presented, and its reliability is proved by the experiment conducted. The numerical examples conducted show that it is workable that by using the numerical calibration based on the presented closed-form solution the proposed sensor is designed into a nonlinear sensor with larger pressure-monitoring range and faster response speed than the linear sensor usually based on experimental calibration.
format Online
Article
Text
id pubmed-7570084
institution National Center for Biotechnology Information
language English
publishDate 2020
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-75700842020-10-28 A Theoretical Study on an Elastic Polymer Thin Film-Based Capacitive Wind-Pressure Sensor Li, Xue Sun, Jun-Yi Shi, Bin-Bin Zhao, Zhi-Hang He, Xiao-Ting Polymers (Basel) Article This study is devoted to the design of an elastic polymer thin film-based capacitive wind-pressure sensor to meet the anticipated use for real-time monitoring of structural wind pressure in civil engineering. This sensor is composed of four basic units: lateral elastic deflection unit of a wind-driven circular polymer thin film, parallel plate capacitor with a movable circular electrode plate, spring-driven return unit of the movable electrode plate, and dielectric materials between electrode plates. The capacitance of the capacitor varies with the parallel move of the movable electrode plate which is first driven by the lateral elastic deflection of the wind-driven film and then is, after the wind pressure is reduced or eliminated, returned quickly by the drive springs. The closed-form solution for the contact problem between the wind-driven thin film and the spring-driven movable electrode plate is presented, and its reliability is proved by the experiment conducted. The numerical examples conducted show that it is workable that by using the numerical calibration based on the presented closed-form solution the proposed sensor is designed into a nonlinear sensor with larger pressure-monitoring range and faster response speed than the linear sensor usually based on experimental calibration. MDPI 2020-09-18 /pmc/articles/PMC7570084/ /pubmed/32961997 http://dx.doi.org/10.3390/polym12092133 Text en © 2020 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 (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Li, Xue
Sun, Jun-Yi
Shi, Bin-Bin
Zhao, Zhi-Hang
He, Xiao-Ting
A Theoretical Study on an Elastic Polymer Thin Film-Based Capacitive Wind-Pressure Sensor
title A Theoretical Study on an Elastic Polymer Thin Film-Based Capacitive Wind-Pressure Sensor
title_full A Theoretical Study on an Elastic Polymer Thin Film-Based Capacitive Wind-Pressure Sensor
title_fullStr A Theoretical Study on an Elastic Polymer Thin Film-Based Capacitive Wind-Pressure Sensor
title_full_unstemmed A Theoretical Study on an Elastic Polymer Thin Film-Based Capacitive Wind-Pressure Sensor
title_short A Theoretical Study on an Elastic Polymer Thin Film-Based Capacitive Wind-Pressure Sensor
title_sort theoretical study on an elastic polymer thin film-based capacitive wind-pressure sensor
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7570084/
https://www.ncbi.nlm.nih.gov/pubmed/32961997
http://dx.doi.org/10.3390/polym12092133
work_keys_str_mv AT lixue atheoreticalstudyonanelasticpolymerthinfilmbasedcapacitivewindpressuresensor
AT sunjunyi atheoreticalstudyonanelasticpolymerthinfilmbasedcapacitivewindpressuresensor
AT shibinbin atheoreticalstudyonanelasticpolymerthinfilmbasedcapacitivewindpressuresensor
AT zhaozhihang atheoreticalstudyonanelasticpolymerthinfilmbasedcapacitivewindpressuresensor
AT hexiaoting atheoreticalstudyonanelasticpolymerthinfilmbasedcapacitivewindpressuresensor
AT lixue theoreticalstudyonanelasticpolymerthinfilmbasedcapacitivewindpressuresensor
AT sunjunyi theoreticalstudyonanelasticpolymerthinfilmbasedcapacitivewindpressuresensor
AT shibinbin theoreticalstudyonanelasticpolymerthinfilmbasedcapacitivewindpressuresensor
AT zhaozhihang theoreticalstudyonanelasticpolymerthinfilmbasedcapacitivewindpressuresensor
AT hexiaoting theoreticalstudyonanelasticpolymerthinfilmbasedcapacitivewindpressuresensor