Fluorescent lamp tungsten filament thermionic emission gun as a novel humidity optical sensor

Abstract Detecting humidity have been remained a continuing concern within some important areas such as structural health, food processing, industrial as well as agricultural products. In this study, a novel humidity optical sensor is introduced based on the thermionic emission of tungsten filament...

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Autores principales:	Hossein Torabi-Monfared, Leila Sherafat, Mohammad Mahdi Doroodmand, Fazlolah Eshghi
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/4efc076d551f4474aa41de15833df74a
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spelling	oai:doaj.org-article:4efc076d551f4474aa41de15833df74a2021-12-02T15:16:10ZFluorescent lamp tungsten filament thermionic emission gun as a novel humidity optical sensor10.1038/s41598-021-97688-42045-2322https://doaj.org/article/4efc076d551f4474aa41de15833df74a2021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-97688-4https://doaj.org/toc/2045-2322Abstract Detecting humidity have been remained a continuing concern within some important areas such as structural health, food processing, industrial as well as agricultural products. In this study, a novel humidity optical sensor is introduced based on the thermionic emission of tungsten filament using the fluorescent lamp set-up. Estimated blue compliant using a charged coupling device camera in optical image of the tungsten filament was confirmed as an appropriate detection system for relative humidity (RH) sensing. The fabricated optical sensor has wide linear range (2.0–98% RH), improved detection limit (< 5.0% RH), acceptable saturated limit (> 99.0% RH), improved percentage of relative standard deviation (4.18%, n = 2), adequate hysteresis (< 4.0% RH) and a shorter rise time (< 5.0 s), respectively. The mechanism behind this detection system is based on the interaction between H2O and tungsten filament during formation of W $${\mathrm{O}}_{3}$$ O 3 .x $${\mathrm{H}}_{2}$$ H 2 O (x = 1–2) in terms of some spectroscopic obtained evidences as well as Fourier transform infrared and X-ray diffraction spectrometries.Hossein Torabi-MonfaredLeila SherafatMohammad Mahdi DoroodmandFazlolah EshghiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Hossein Torabi-Monfared Leila Sherafat Mohammad Mahdi Doroodmand Fazlolah Eshghi Fluorescent lamp tungsten filament thermionic emission gun as a novel humidity optical sensor
description	Abstract Detecting humidity have been remained a continuing concern within some important areas such as structural health, food processing, industrial as well as agricultural products. In this study, a novel humidity optical sensor is introduced based on the thermionic emission of tungsten filament using the fluorescent lamp set-up. Estimated blue compliant using a charged coupling device camera in optical image of the tungsten filament was confirmed as an appropriate detection system for relative humidity (RH) sensing. The fabricated optical sensor has wide linear range (2.0–98% RH), improved detection limit (< 5.0% RH), acceptable saturated limit (> 99.0% RH), improved percentage of relative standard deviation (4.18%, n = 2), adequate hysteresis (< 4.0% RH) and a shorter rise time (< 5.0 s), respectively. The mechanism behind this detection system is based on the interaction between H2O and tungsten filament during formation of W $${\mathrm{O}}_{3}$$ O 3 .x $${\mathrm{H}}_{2}$$ H 2 O (x = 1–2) in terms of some spectroscopic obtained evidences as well as Fourier transform infrared and X-ray diffraction spectrometries.
format	article
author	Hossein Torabi-Monfared Leila Sherafat Mohammad Mahdi Doroodmand Fazlolah Eshghi
author_facet	Hossein Torabi-Monfared Leila Sherafat Mohammad Mahdi Doroodmand Fazlolah Eshghi
author_sort	Hossein Torabi-Monfared
title	Fluorescent lamp tungsten filament thermionic emission gun as a novel humidity optical sensor
title_short	Fluorescent lamp tungsten filament thermionic emission gun as a novel humidity optical sensor
title_full	Fluorescent lamp tungsten filament thermionic emission gun as a novel humidity optical sensor
title_fullStr	Fluorescent lamp tungsten filament thermionic emission gun as a novel humidity optical sensor
title_full_unstemmed	Fluorescent lamp tungsten filament thermionic emission gun as a novel humidity optical sensor
title_sort	fluorescent lamp tungsten filament thermionic emission gun as a novel humidity optical sensor
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/4efc076d551f4474aa41de15833df74a
work_keys_str_mv	AT hosseintorabimonfared fluorescentlamptungstenfilamentthermionicemissiongunasanovelhumidityopticalsensor AT leilasherafat fluorescentlamptungstenfilamentthermionicemissiongunasanovelhumidityopticalsensor AT mohammadmahdidoroodmand fluorescentlamptungstenfilamentthermionicemissiongunasanovelhumidityopticalsensor AT fazlolaheshghi fluorescentlamptungstenfilamentthermionicemissiongunasanovelhumidityopticalsensor
_version_	1718387506015109120

Fluorescent lamp tungsten filament thermionic emission gun as a novel humidity optical sensor

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