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Characterization of Distributed Microfabricated Strain Gauges on Stretchable Sensor Networks for Structural Applications

Smart structures mimic biological systems by using thousands of sensors serving as a nervous system analog. One approach to give structures this sensing ability is to develop a multifunctional sensor network. Previous work has demonstrated stretchable sensor networks consisting of temperature sensor...

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Detalles Bibliográficos
Autores principales: Chen, Xiyuan, Topac, Tanay, Smith, Wyatt, Ladpli, Purim, Liu, Cheng, Chang, Fu-Kuo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6210695/
https://www.ncbi.nlm.nih.gov/pubmed/30274158
http://dx.doi.org/10.3390/s18103260
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author Chen, Xiyuan
Topac, Tanay
Smith, Wyatt
Ladpli, Purim
Liu, Cheng
Chang, Fu-Kuo
author_facet Chen, Xiyuan
Topac, Tanay
Smith, Wyatt
Ladpli, Purim
Liu, Cheng
Chang, Fu-Kuo
author_sort Chen, Xiyuan
collection PubMed
description Smart structures mimic biological systems by using thousands of sensors serving as a nervous system analog. One approach to give structures this sensing ability is to develop a multifunctional sensor network. Previous work has demonstrated stretchable sensor networks consisting of temperature sensors and impact detectors for monitoring external environments and interacting with other objects. The objective of this work is to develop distributed, robust and reliable strain gauges for obtaining the strain distribution of a designated region on the target structure. Here, we report a stretchable network that has 27 rosette strain gauges, 6 resistive temperature devices and 8 piezoelectric transducers symmetrically distributed over an area of 150 × 150 mm to map and quantify multiple physical stimuli with a spatial resolution of 2.5 × 2.5 mm. We performed computational modeling of the network stretching process to improve measurement accuracy and conducted experimental characterizations of the microfabricated strain gauges to verify their gauge factor and temperature coefficient. Collectively, the results represent a robust and reliable sensing system that is able to generate a distributed strain profile of a common structure. The reported strain gauge network may find a wide range of applications in morphing wings, smart buildings, autonomous cars and intelligent robots.
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spelling pubmed-62106952018-11-02 Characterization of Distributed Microfabricated Strain Gauges on Stretchable Sensor Networks for Structural Applications Chen, Xiyuan Topac, Tanay Smith, Wyatt Ladpli, Purim Liu, Cheng Chang, Fu-Kuo Sensors (Basel) Article Smart structures mimic biological systems by using thousands of sensors serving as a nervous system analog. One approach to give structures this sensing ability is to develop a multifunctional sensor network. Previous work has demonstrated stretchable sensor networks consisting of temperature sensors and impact detectors for monitoring external environments and interacting with other objects. The objective of this work is to develop distributed, robust and reliable strain gauges for obtaining the strain distribution of a designated region on the target structure. Here, we report a stretchable network that has 27 rosette strain gauges, 6 resistive temperature devices and 8 piezoelectric transducers symmetrically distributed over an area of 150 × 150 mm to map and quantify multiple physical stimuli with a spatial resolution of 2.5 × 2.5 mm. We performed computational modeling of the network stretching process to improve measurement accuracy and conducted experimental characterizations of the microfabricated strain gauges to verify their gauge factor and temperature coefficient. Collectively, the results represent a robust and reliable sensing system that is able to generate a distributed strain profile of a common structure. The reported strain gauge network may find a wide range of applications in morphing wings, smart buildings, autonomous cars and intelligent robots. MDPI 2018-09-28 /pmc/articles/PMC6210695/ /pubmed/30274158 http://dx.doi.org/10.3390/s18103260 Text en © 2018 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
Chen, Xiyuan
Topac, Tanay
Smith, Wyatt
Ladpli, Purim
Liu, Cheng
Chang, Fu-Kuo
Characterization of Distributed Microfabricated Strain Gauges on Stretchable Sensor Networks for Structural Applications
title Characterization of Distributed Microfabricated Strain Gauges on Stretchable Sensor Networks for Structural Applications
title_full Characterization of Distributed Microfabricated Strain Gauges on Stretchable Sensor Networks for Structural Applications
title_fullStr Characterization of Distributed Microfabricated Strain Gauges on Stretchable Sensor Networks for Structural Applications
title_full_unstemmed Characterization of Distributed Microfabricated Strain Gauges on Stretchable Sensor Networks for Structural Applications
title_short Characterization of Distributed Microfabricated Strain Gauges on Stretchable Sensor Networks for Structural Applications
title_sort characterization of distributed microfabricated strain gauges on stretchable sensor networks for structural applications
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6210695/
https://www.ncbi.nlm.nih.gov/pubmed/30274158
http://dx.doi.org/10.3390/s18103260
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