META 2021, META'12

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Images and electrical signal correlation to find bubble sizes in liquids
Marcelo Marinho, Valentin Obac Roda, Emerson Carlos Pedrino

Last modified: 2012-02-28

Abstract


Bubble size distribution is an important characteristic of biphasic systems. The interfacial area of the bubbles is strongly related to the chemical reactions rates  and mass transfer that occur when producing some types of metamaterials

Intrusive probes are largely used to determine bubble size distribution in biphasic bubbling columns. Single probes can only measure the bubble diameter directly by measuring the length of a perforated bubble and determining their diameters by using statistical analysis,. Although bubble sizes cannot be obtained directly by the use of analysis. In this work we present a setup to measure bubble sizes in a bubbling column made of air and water using a conductive probe. Monochromatic images from CCD camera are used to calibrate and validate the system.


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