Application of a computer sound card for measurement of mechanical vibrations

Barros, Everaldo de; Souto, Carlos d’Andrade; Camargo, Leandro Ribeiro de; Mathias, Mauro Hugo

doi:10.1590/s1806-11173742036

Cited by 2 publications

(2 citation statements)

References 6 publications

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“…Por ejemplo, la tarjeta Arduino con licencia de código abierto con variados sensores (ver, por ejemplo, las referencias [20][21][22][23][24][25][26][27][28][29][30]); los microcontroladores PIC16F628A [31], PIC16F877 [32,33] y el PIC18F14K50 (utilizado en este trabajo); las fotocompuertas y tarjetas de sonido para la adquisición de datos (ver, entre otras, las referencias [34][35][36][37][38][39][40][41][42][43][44]), entre otros. La mayoría de estos dispositivos son de bajo costo y utilizan lenguajes de programación de uso gratuito.…”

Section: Introductionunclassified

Dispositivo para medir tiempo y temperatura usando un microcontrolador

Calderón

Muñoz

Rivera

2017

Rev. Bras. Ensino Fís.

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En este trabajo se desarrolló un dispositivo de adquisición de datos, de bajo costo y fácil manejo, para usar en experimentos de física donde se requiera medir tiempo o temperatura, conformado por tres equipos principales: (i) Sensores para medir las variables físicas de tiempo y temperatura; (ii) Una tarjeta de adquisición con microcontrolador para el manejo de instrucciones y (iii) Una computadora para el almacenamiento de datos. El sensor, compuesto de un infrarrojo y un fototransistor, cambia su estado lógico al interrumpir la señal. La tarjeta que se utiliza incluye un microcontrolador de la marca Microchip, PIC18F14K50, el cual contiene comparadores, convertidores de análogo a digital, temporizadores y puerto de comunicación USB (Universal Serial Bus). El computador se usó como una herramienta de almacenamiento de datos y visualización de variables a través de una hoja de cálculo. La programación del microcontrolador se hizo con software MPLAB X de licencia gratuita. La funcionalidad del dispositivo se verificó en el experimento de caída libre para determinar el valor de la aceleración gravitacional. Palabras clave: Sistema de adquisición de datos, Sensor, Microcontrolador.In this paper a device of data acquisition with low cost and easy management was developed for using in experiments of physics where time or temperature measurement is required. The device is composed by three main parts: (i) sensors to measure the physical variables of time and temperature; (ii) a data acquisition card with microcontroller to manage commands and (iii) a computer in order to store data. The sensor, composed by an infrared and a phototransistor, changes its logical state when the signal is interrupted. The board used includes a microcontroller of Microchip brand, PIC18F14K50, which has comparators, analog to digital converters, timers and an Universal Serial Bus (USB) port. The computer was used as a tool to store data and see variables by means of a spreadsheet. The microcontroller programming was made with MPLABX software of free license. The usefulness of the device was tested in the free fall experiment in order to determine the value of the gravitational acceleration.

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Section: Introductionunclassified

Dispositivo para medir tiempo y temperatura usando un microcontrolador

Calderón

Muñoz

Rivera

2017

Rev. Bras. Ensino Fís.

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“…Neste contexto, sistemas de medição e análise podem apresentar elevados custos e como alternativa, a utilização da placa de som de um computador como dispositivo de aquisição de dados pode se apresentar como uma solução de baixo custo [4][5][6][7][8][9][10]. Este artigo apresenta um sistema de baixo custo para medição e análise de sinais de choque, baseado no emprego da placa de som de um computador para aquisição de sinais de acelerômetros e em um software desenvolvido na linguagem de programação visual Laboratory Virtual Instrument Engineering Workbench (LabView) para obtenção da representação SRS.…”

Section: Introductionunclassified

A low cost data acquisition system for measuring shock

Barros¹,

Nogueira²,

Silveira³

et al. 2016

IEEE Latin Am. Trans.

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One of the most common environment tests is the shock testing, widely used to test the mechanical integrity and to ensure the quality and reliability of products. During shock tests, data acquisition systems are normally required for measuring acceleration time histories and processing the shock response spectrum, or SRS. This paper presents a data acquisition and analysis system based on a computer sound card for measuring shock and characterizing the shock severity by its SRS. Since the tasks of shock data acquisition frequently require expensive hardware and software, this low cost system represents a very accurate and inexpensive solution for shock characterization.

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Application of a computer sound card for measurement of mechanical vibrations

Cited by 2 publications

References 6 publications

Dispositivo para medir tiempo y temperatura usando un microcontrolador

Dispositivo para medir tiempo y temperatura usando un microcontrolador

A low cost data acquisition system for measuring shock

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