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OpenHumidistat: Humidity-controlled experiments for everyone

Humidity control is a crucial element for a wide variety of experiments. Yet, often naive methods are used that do not yield stable regulation of the humidity, are slow, or are inflexible. PID-based electropneumatic humidistats solve these problems, but commercial devices are not widespread, typical...

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Detalles Bibliográficos
Autores principales: Veldscholte, Lars B., de Beer, Sissi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9058855/
https://www.ncbi.nlm.nih.gov/pubmed/35509938
http://dx.doi.org/10.1016/j.ohx.2022.e00288
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author Veldscholte, Lars B.
de Beer, Sissi
author_facet Veldscholte, Lars B.
de Beer, Sissi
author_sort Veldscholte, Lars B.
collection PubMed
description Humidity control is a crucial element for a wide variety of experiments. Yet, often naive methods are used that do not yield stable regulation of the humidity, are slow, or are inflexible. PID-based electropneumatic humidistats solve these problems, but commercial devices are not widespread, typically proprietary and/or prohibitively expensive. Here we describe OpenHumidistat: a free and open-source humidistat for laboratory-scale humidity control that is affordable (€500) and easy to build. The design is based around mixing a humid and dry air flow in varying proportions, using proportional solenoid valves and flow sensors to control flow rates. The mixed flow is led into a measurement chamber, which contains a humidity sensor to provide feedback to the controller, to achieve closed-loop humidity control.
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spelling pubmed-90588552022-05-03 OpenHumidistat: Humidity-controlled experiments for everyone Veldscholte, Lars B. de Beer, Sissi HardwareX Article Humidity control is a crucial element for a wide variety of experiments. Yet, often naive methods are used that do not yield stable regulation of the humidity, are slow, or are inflexible. PID-based electropneumatic humidistats solve these problems, but commercial devices are not widespread, typically proprietary and/or prohibitively expensive. Here we describe OpenHumidistat: a free and open-source humidistat for laboratory-scale humidity control that is affordable (€500) and easy to build. The design is based around mixing a humid and dry air flow in varying proportions, using proportional solenoid valves and flow sensors to control flow rates. The mixed flow is led into a measurement chamber, which contains a humidity sensor to provide feedback to the controller, to achieve closed-loop humidity control. Elsevier 2022-03-09 /pmc/articles/PMC9058855/ /pubmed/35509938 http://dx.doi.org/10.1016/j.ohx.2022.e00288 Text en © 2022 The Author(s) https://creativecommons.org/licenses/by/4.0/This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Veldscholte, Lars B.
de Beer, Sissi
OpenHumidistat: Humidity-controlled experiments for everyone
title OpenHumidistat: Humidity-controlled experiments for everyone
title_full OpenHumidistat: Humidity-controlled experiments for everyone
title_fullStr OpenHumidistat: Humidity-controlled experiments for everyone
title_full_unstemmed OpenHumidistat: Humidity-controlled experiments for everyone
title_short OpenHumidistat: Humidity-controlled experiments for everyone
title_sort openhumidistat: humidity-controlled experiments for everyone
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9058855/
https://www.ncbi.nlm.nih.gov/pubmed/35509938
http://dx.doi.org/10.1016/j.ohx.2022.e00288
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