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...

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Autores principales:	Ruey-Ching Twu, Kai-Hsuan Li, Bo-Lin Lin
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	low cost polyethylene terephthalate fluidic sensor birefringence phase measurement polarization interferometer Chemical technology TP1-1185
Acceso en línea:	https://doaj.org/article/30c3dc6280e5431e8e3d39a8381d4440
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spelling	oai:doaj.org-article:30c3dc6280e5431e8e3d39a8381d44402021-11-11T19:19:49ZLow-Cost Polyethylene Terephthalate Fluidic Sensor for Ultrahigh Accuracy Measurement of Liquid Concentration Variation10.3390/s212174101424-8220https://doaj.org/article/30c3dc6280e5431e8e3d39a8381d44402021-11-01T00:00:00Zhttps://www.mdpi.com/1424-8220/21/21/7410https://doaj.org/toc/1424-8220A 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<sup>4</sup> deg./refractive index unit (RIU) and a detection resolution of 6.25 × 10<sup>−6</sup> RIU. The estimated sensitivity and detection resolutions were 5.62 × 10<sup>4</sup> (deg./RIU) and 6.94 × 10<sup>−6</sup> 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.Ruey-Ching TwuKai-Hsuan LiBo-Lin LinMDPI AGarticlelow costpolyethylene terephthalatefluidic sensorbirefringencephase measurementpolarization interferometerChemical technologyTP1-1185ENSensors, Vol 21, Iss 7410, p 7410 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	low cost polyethylene terephthalate fluidic sensor birefringence phase measurement polarization interferometer Chemical technology TP1-1185
spellingShingle	low cost polyethylene terephthalate fluidic sensor birefringence phase measurement polarization interferometer Chemical technology TP1-1185 Ruey-Ching Twu Kai-Hsuan Li Bo-Lin Lin Low-Cost Polyethylene Terephthalate Fluidic Sensor for Ultrahigh Accuracy Measurement of Liquid Concentration Variation
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<sup>4</sup> deg./refractive index unit (RIU) and a detection resolution of 6.25 × 10<sup>−6</sup> RIU. The estimated sensitivity and detection resolutions were 5.62 × 10<sup>4</sup> (deg./RIU) and 6.94 × 10<sup>−6</sup> 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	article
author	Ruey-Ching Twu Kai-Hsuan Li Bo-Lin Lin
author_facet	Ruey-Ching Twu Kai-Hsuan Li Bo-Lin Lin
author_sort	Ruey-Ching Twu
title	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_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_sort	low-cost polyethylene terephthalate fluidic sensor for ultrahigh accuracy measurement of liquid concentration variation
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/30c3dc6280e5431e8e3d39a8381d4440
work_keys_str_mv	AT rueychingtwu lowcostpolyethyleneterephthalatefluidicsensorforultrahighaccuracymeasurementofliquidconcentrationvariation AT kaihsuanli lowcostpolyethyleneterephthalatefluidicsensorforultrahighaccuracymeasurementofliquidconcentrationvariation AT bolinlin lowcostpolyethyleneterephthalatefluidicsensorforultrahighaccuracymeasurementofliquidconcentrationvariation
_version_	1718431519613124608

Low-Cost Polyethylene Terephthalate Fluidic Sensor for Ultrahigh Accuracy Measurement of Liquid Concentration Variation

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