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Estimating the Volume of Unknown Inclusions in an Electrically Conducting Body with Voltage Measurements
We propose a novel technique to estimate the total volume of unknown insulating inclusions in an electrically conducting body from voltage measurements. Unlike conventional Electrical Impedance Tomography (EIT) systems that usually exhibit low spatial resolution and accuracy, the proposed device is...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6386993/ https://www.ncbi.nlm.nih.gov/pubmed/30717406 http://dx.doi.org/10.3390/s19030637 |
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author | Affanni, Antonio Specogna, Ruben Trevisan, Francesco |
author_facet | Affanni, Antonio Specogna, Ruben Trevisan, Francesco |
author_sort | Affanni, Antonio |
collection | PubMed |
description | We propose a novel technique to estimate the total volume of unknown insulating inclusions in an electrically conducting body from voltage measurements. Unlike conventional Electrical Impedance Tomography (EIT) systems that usually exhibit low spatial resolution and accuracy, the proposed device is composed of a pair of driving electrodes which, supplied with a known sinusoidal voltage, create a current density field inside a region of interest. The electrodes are designed to generate a current density field in the region of interest that is uniform, to a good approximation, when the inclusions are not present. A set of electrodes with a polygonal geometry is used for four-wires resistance measurements. The proposed technique has been tested designing a low cost prototype, where all electrodes are on the bottom of the conducting body, showing good performances. Such a device may be used to monitor the volume of biological cells inside cell culture dishes or the volume of blood clots in micro-channels in lab-on-a-chip biosensors. |
format | Online Article Text |
id | pubmed-6386993 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-63869932019-02-26 Estimating the Volume of Unknown Inclusions in an Electrically Conducting Body with Voltage Measurements Affanni, Antonio Specogna, Ruben Trevisan, Francesco Sensors (Basel) Article We propose a novel technique to estimate the total volume of unknown insulating inclusions in an electrically conducting body from voltage measurements. Unlike conventional Electrical Impedance Tomography (EIT) systems that usually exhibit low spatial resolution and accuracy, the proposed device is composed of a pair of driving electrodes which, supplied with a known sinusoidal voltage, create a current density field inside a region of interest. The electrodes are designed to generate a current density field in the region of interest that is uniform, to a good approximation, when the inclusions are not present. A set of electrodes with a polygonal geometry is used for four-wires resistance measurements. The proposed technique has been tested designing a low cost prototype, where all electrodes are on the bottom of the conducting body, showing good performances. Such a device may be used to monitor the volume of biological cells inside cell culture dishes or the volume of blood clots in micro-channels in lab-on-a-chip biosensors. MDPI 2019-02-02 /pmc/articles/PMC6386993/ /pubmed/30717406 http://dx.doi.org/10.3390/s19030637 Text en © 2019 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 Affanni, Antonio Specogna, Ruben Trevisan, Francesco Estimating the Volume of Unknown Inclusions in an Electrically Conducting Body with Voltage Measurements |
title | Estimating the Volume of Unknown Inclusions in an Electrically Conducting Body with Voltage Measurements |
title_full | Estimating the Volume of Unknown Inclusions in an Electrically Conducting Body with Voltage Measurements |
title_fullStr | Estimating the Volume of Unknown Inclusions in an Electrically Conducting Body with Voltage Measurements |
title_full_unstemmed | Estimating the Volume of Unknown Inclusions in an Electrically Conducting Body with Voltage Measurements |
title_short | Estimating the Volume of Unknown Inclusions in an Electrically Conducting Body with Voltage Measurements |
title_sort | estimating the volume of unknown inclusions in an electrically conducting body with voltage measurements |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6386993/ https://www.ncbi.nlm.nih.gov/pubmed/30717406 http://dx.doi.org/10.3390/s19030637 |
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