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Sistema de escaneo de campos acústicos en inmersión

Authors: Lasprilla Narvaez, Juan Pablo;

Sistema de escaneo de campos acústicos en inmersión

Abstract

Este trabajo muestra el desarrollo de un sistema de escaneo de campos acústicos en inmersión. Basado en una ruteadora CNC antigua, fue desarrollado un sistema de posicionamiento de un hidrófono que permite medir la presión acústica en una matriz de puntos al frente de un transductor ultrasónico. La electrónica de control fue diseñada y construida completamente, usando como parte central un microcontrolador Arduino Mega 2560 y drivers tipo puente H L298A para alimentar los motores de pasos. Para el posicionamiento del hidrófono y la adquisición sincronizada de las señales se desarrolló un software de control constituido por una serie de rutinas en el microcontrolador y otras en el computador (Matlab), y la comunicación se realizó por medio del puerto serial. Las señales ultrasónicas son adquiridas con un osciloscopio digital y transferidas al computador vía red LAN. El sistema fue testado escaneando dos transductores ultrasónicos de 1 y 2,25 MHz. Los resultados mostraron que el sistema funciona correctamente y será una herramienta de medición valiosa para la línea de acústica de grupo de investigación.

This work shows the development of an immersion acoustic field scanning system. Based on an out-of-use CNC router, a hydrophone positioning system that allows to measure the acoustic pressure in a matrix of points in front of an ultrasonic transducer was developed. The electronic circuitry was completely designed and build, using as central part an Arduino Mega 2560 microcontroller and L298A H-bridge drivers to power the stepper motors. For the positioning of the hydrophone and the synchronized acquisition of the signals, a control software was developed consisting of a series of routines in the microcontroller and others in the computer (Matlab). The communication was carried out through the serial port. The ultrasonic signals are acquired with a digital oscilloscope and transferred to the computer via LAN. The system was tested by scanning two ultrasonic transducers of 1 and 2.25 MHz. The results showed that the system works correctly and will be a valuable measurement tool for the acoustics research line in our group.

Proyecto de grado (Ingeniero Mecatrónico)-- Universidad Autónoma de Occidente, 2023

Ingeniero(a) Mecatrónico(a)

Pregrado

Country
Colombia
Related Organizations
Keywords

Ultrasonic waves, Ondas ultrasónicas, Hidrófono, Transductor ultrasónico, Ultrasonido, Campos acusticos, Ultrasonic transducers, Transductores ultrasónicos, Hydrophone, Ingeniería Mecatrónica

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green