A portable instrument with disposable cells for in-situ measurements of viscosity in liquids

Viscosity is a very important property of liquids and its measure is mandatory for quality analysis in different industrial fields, such as food, paints, petroleum based products and cosmetics. Different types of viscometers exist that can measure fluids’ viscosity with high accuracy exploiting diff...

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Detalles Bibliográficos
Autores: Grossi, Marco, Riccò, Bruno
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2019
País:México
Institución:UNIVERSIDAD NACIONAL AUTÓNOMA DE MÉXICO
Repositorio:Journal of Applied Research and Technology
Idioma:inglés
OAI Identifier:oai:ojs2.localhost:article/712
Acceso en línea:https://jart.icat.unam.mx/index.php/jart/article/view/712
Access Level:acceso abierto
Palabra clave:viscosity
electronic instrument
embedded system
microcontroller
disposable
measurement
Descripción
Sumario:Viscosity is a very important property of liquids and its measure is mandatory for quality analysis in different industrial fields, such as food, paints, petroleum based products and cosmetics. Different types of viscometers exist that can measure fluids’ viscosity with high accuracy exploiting different physical principles, however these instruments are generally laboratory based and not suitable for quick in-situ measurements by untrained personnel.In this paper a portable instrument for in-situ measurement of liquids’ viscosity is presented. The instrument is based on the falling ball principle and features a battery operated electronic board, an LCD display and a disposable cell for measurements on samples for which cleaning would be difficult and time consuming. The instrument has been successfully tested by measuring the viscosity of tap water in the temperature range 15° - 45 °C and the viscosity of metalworking fluids in order to estimate oil concentration.