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pablo

Pablo David García López

CWP Visiting Scientist
Country: Spain
E-mail: pgarcia@mines.edu



 

Pablo graduated from the University of Oviedo, Spain, with a degree in physics. After completing his studies, he joined the Hydro-Geophysics research group at the Oviedo Escuela de Minas (School of Mines). He is working in collaboration with ArcelorMittal on non-destructive testing applied to furnaces.

In his free time, Pablo enjoys a variety sports, especially soccer and riding his mountain bike.

 

Clearing Method

Research

The goal of Pablo's research is to achieve experimental focusing of acoustic waves in 1-D. To do this, he has designed an experiment of sound propagation in a tube. Pablo is working with Prof. Roel Snieder during his visit to CWP and he is studying how to achieve focusing in loss media.

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General view of experiment to focus 1-D acoustic waves
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Sound propagates through a 15-meter PVC tube
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Microphones placed into the tube record the acoustic field
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Emitted and recorded signals are processed in MATLAB
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Sound generated with a speaker "concentrated"by a plastic cone
 

 

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Field recorded into the tube when the speaker introduces white noise in the system.
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Field recorded into the tube (red) when the speaker introduces a delta in the system (black); red point indicates the echo of the end of the tube.
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Deconvolution allows focusing of the signal entering the tube, deleting the echoes of the cone and obtaining a cardinal sine (finite bandwith). Experimental is blue and theoretical is red.
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Signal obtained when the tube isfilled with obstacles. Peaks illustrate the location and size of objects.

 

Research

 

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