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Low-Cost Polyethylene Terephthalate Fluidic Sensor for Ultrahigh Accuracy Measurement of Liquid Concentration Variation
A low-cost polyethylene terephthalate fluidic sensor (PET-FS) is demonstrated for the concentration variation measurement on fluidic solutions. The PET-FS consisted of a triangular fluidic container attached with a birefringent PET thin layer. The PET-FS was injected with the test liquid solution th...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8587519/ https://www.ncbi.nlm.nih.gov/pubmed/34770716 http://dx.doi.org/10.3390/s21217410 |
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author | Twu, Ruey-Ching Li, Kai-Hsuan Lin, Bo-Lin |
author_facet | Twu, Ruey-Ching Li, Kai-Hsuan Lin, Bo-Lin |
author_sort | Twu, Ruey-Ching |
collection | PubMed |
description | A low-cost polyethylene terephthalate fluidic sensor (PET-FS) is demonstrated for the concentration variation measurement on fluidic solutions. The PET-FS consisted of a triangular fluidic container attached with a birefringent PET thin layer. The PET-FS was injected with the test liquid solution that was placed in a common path polarization interferometer by utilizing a heterodyne scheme. The measured phase variation of probe light was used to obtain the information regarding the concentration change in the fluidic liquids. The sensor was experimentally tested using different concentrations of sodium chloride solution showing a sensitivity of 3.52 ×10(4) deg./refractive index unit (RIU) and a detection resolution of 6.25 × 10(−6) RIU. The estimated sensitivity and detection resolutions were 5.62 × 10(4) (deg./RIU) and 6.94 × 10(−6) RIU, respectively, for the hydrochloric acid. The relationship between the measured phase and the concentration is linear with an R-squared value reaching above 0.995. |
format | Online Article Text |
id | pubmed-8587519 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-85875192021-11-13 Low-Cost Polyethylene Terephthalate Fluidic Sensor for Ultrahigh Accuracy Measurement of Liquid Concentration Variation Twu, Ruey-Ching Li, Kai-Hsuan Lin, Bo-Lin Sensors (Basel) Article A low-cost polyethylene terephthalate fluidic sensor (PET-FS) is demonstrated for the concentration variation measurement on fluidic solutions. The PET-FS consisted of a triangular fluidic container attached with a birefringent PET thin layer. The PET-FS was injected with the test liquid solution that was placed in a common path polarization interferometer by utilizing a heterodyne scheme. The measured phase variation of probe light was used to obtain the information regarding the concentration change in the fluidic liquids. The sensor was experimentally tested using different concentrations of sodium chloride solution showing a sensitivity of 3.52 ×10(4) deg./refractive index unit (RIU) and a detection resolution of 6.25 × 10(−6) RIU. The estimated sensitivity and detection resolutions were 5.62 × 10(4) (deg./RIU) and 6.94 × 10(−6) RIU, respectively, for the hydrochloric acid. The relationship between the measured phase and the concentration is linear with an R-squared value reaching above 0.995. MDPI 2021-11-08 /pmc/articles/PMC8587519/ /pubmed/34770716 http://dx.doi.org/10.3390/s21217410 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Twu, Ruey-Ching Li, Kai-Hsuan Lin, Bo-Lin Low-Cost Polyethylene Terephthalate Fluidic Sensor for Ultrahigh Accuracy Measurement of Liquid Concentration Variation |
title | Low-Cost Polyethylene Terephthalate Fluidic Sensor for Ultrahigh Accuracy Measurement of Liquid Concentration Variation |
title_full | Low-Cost Polyethylene Terephthalate Fluidic Sensor for Ultrahigh Accuracy Measurement of Liquid Concentration Variation |
title_fullStr | Low-Cost Polyethylene Terephthalate Fluidic Sensor for Ultrahigh Accuracy Measurement of Liquid Concentration Variation |
title_full_unstemmed | Low-Cost Polyethylene Terephthalate Fluidic Sensor for Ultrahigh Accuracy Measurement of Liquid Concentration Variation |
title_short | Low-Cost Polyethylene Terephthalate Fluidic Sensor for Ultrahigh Accuracy Measurement of Liquid Concentration Variation |
title_sort | low-cost polyethylene terephthalate fluidic sensor for ultrahigh accuracy measurement of liquid concentration variation |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8587519/ https://www.ncbi.nlm.nih.gov/pubmed/34770716 http://dx.doi.org/10.3390/s21217410 |
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