Non-Contact Thermometer for Improved Air Temperature Measurements

A compact thermometer for air temperature based on the measurement of the speed of sound was developed at INRIM. This paper focuses on the comparison of this instrument with platinum resistance thermometers in a climatic chamber over a temperature range (−30 ÷ +55) °C, relative humidity (10 ÷ 90)%rh...

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Detalles Bibliográficos
Autores principales: Pisani, Marco, Astrua, Milena, Merlone, Andrea
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9965692/
https://www.ncbi.nlm.nih.gov/pubmed/36850504
http://dx.doi.org/10.3390/s23041908
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author Pisani, Marco
Astrua, Milena
Merlone, Andrea
author_facet Pisani, Marco
Astrua, Milena
Merlone, Andrea
author_sort Pisani, Marco
collection PubMed
description A compact thermometer for air temperature based on the measurement of the speed of sound was developed at INRIM. This paper focuses on the comparison of this instrument with platinum resistance thermometers in a climatic chamber over a temperature range (−30 ÷ +55) °C, relative humidity (10 ÷ 90)%rh, and irradiation (>1 kW/m(2)) values similar to those of surface atmospheric conditions. Overall uncertainty values of 0.2 °C over the range from −30 °C to +30 °C, and from 0.6 °C to +55 °C, were found. Moreover, the instrument proved to be immune to irradiation errors and free from the need for temperature calibration.
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spelling pubmed-99656922023-02-26 Non-Contact Thermometer for Improved Air Temperature Measurements Pisani, Marco Astrua, Milena Merlone, Andrea Sensors (Basel) Article A compact thermometer for air temperature based on the measurement of the speed of sound was developed at INRIM. This paper focuses on the comparison of this instrument with platinum resistance thermometers in a climatic chamber over a temperature range (−30 ÷ +55) °C, relative humidity (10 ÷ 90)%rh, and irradiation (>1 kW/m(2)) values similar to those of surface atmospheric conditions. Overall uncertainty values of 0.2 °C over the range from −30 °C to +30 °C, and from 0.6 °C to +55 °C, were found. Moreover, the instrument proved to be immune to irradiation errors and free from the need for temperature calibration. MDPI 2023-02-08 /pmc/articles/PMC9965692/ /pubmed/36850504 http://dx.doi.org/10.3390/s23041908 Text en © 2023 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
Pisani, Marco
Astrua, Milena
Merlone, Andrea
Non-Contact Thermometer for Improved Air Temperature Measurements
title Non-Contact Thermometer for Improved Air Temperature Measurements
title_full Non-Contact Thermometer for Improved Air Temperature Measurements
title_fullStr Non-Contact Thermometer for Improved Air Temperature Measurements
title_full_unstemmed Non-Contact Thermometer for Improved Air Temperature Measurements
title_short Non-Contact Thermometer for Improved Air Temperature Measurements
title_sort non-contact thermometer for improved air temperature measurements
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9965692/
https://www.ncbi.nlm.nih.gov/pubmed/36850504
http://dx.doi.org/10.3390/s23041908
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