Detección de Burbujas en Columnas de Fluido Por Medio De Ultrasonidos
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Date
2022-06-30
Authors
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Publisher
Universidad Antonio Nariño
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Document type
Tesis/Trabajo de grado - Monografía - Maestría
COAR type
http://purl.org/coar/resource_type/c_bdcc
Citation
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Abstract
This document shows the results obtained for the design and assembly of a laboratory-scale
prototype to detect bubbles produced in liquid columns using ultrasound. The method used
consisted in evaluating the voltages received by a piezo-electric transducer, which is stimulated with an ultrasonic signal coming from another ceramic device of similar characteristics.
This arrangement was coupled to a column of acrylic material, containing fluid in its interior, then relate these voltages to the size of the air bubbles generated in the interior of
the fluid. The bubble size measurement was performed by means of digital image analysis.
In this process, a computational algorithm was programmed in MATLAB, which allowed
determining the average size of the bubbles from a series of videos. Subsequently, a data
acquisition, filtering and analysis process was performed based on the PSoC development
interface, to observe the behavior and voltage variations coming from the passage of the
bubble through the sensors located in the acoustic chamber, finally, the relationship between
bubble sizes and voltages is found. The results obtained corroborate that the possibility of
detecting bubbles by means of the proposed ultrasonic method is feasible.
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Bogotá DC