Cargando…

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...

Descripción completa

Detalles Bibliográficos
Autores principales: Twu, Ruey-Ching, Li, Kai-Hsuan, Lin, Bo-Lin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
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
_version_ 1784598167307681792
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
work_keys_str_mv AT twurueyching lowcostpolyethyleneterephthalatefluidicsensorforultrahighaccuracymeasurementofliquidconcentrationvariation
AT likaihsuan lowcostpolyethyleneterephthalatefluidicsensorforultrahighaccuracymeasurementofliquidconcentrationvariation
AT linbolin lowcostpolyethyleneterephthalatefluidicsensorforultrahighaccuracymeasurementofliquidconcentrationvariation