Medida de Velocidade de Propagação do Som e Espessura de Materiais por Ultra-som

Paulo Rogério Scalassara; Fernando Alves Negrão; Edgar Matsuo Tsuzuki; Carlos Dias Maciel

doi:10.5433/1679-0375.2002v23n1p9

Speed of Sound and Materials Thickness Measuring by Ultrasound

Authors

Paulo Rogério Scalassara Universidade Estadual de Londrina
Fernando Alves Negrão Universidade Estadual de Londrina
Edgar Matsuo Tsuzuki Universidade Estadual de Londrina
Carlos Dias Maciel Universidade Estadual de Londrina

DOI:

https://doi.org/10.5433/1679-0375.2002v23n1p9

Keywords:

Ultrasound, Speed, Transducer.

Abstract

Nowadays, ultrasound pulse-echo systems are commonly used as a diagnostic tool, due to its advantageous characteristics such as being a non-destructive analysis method and having a millimeter range resolution for the currently used frequencies. Considering these and other qualities, this study intends to develop a system for measuring and analyzing physical properties of some materials. Using a data acquisition system in a microcomputer, electrical (voltage) pulses are generated to agitate a transducer that sends a pressure pulse towards the sample. This same transducer receives the echo reflected from the material, converts the mechanical energy into an electrical one, transforming it into information, which is processed later using a mathematical computer program. With this process, the values of the sound speed and the signal attenuation in the sample are obtained, plus its thickness with a minor error.

Downloads

Download data is not yet available.

Author Biographies

Paulo Rogério Scalassara, Universidade Estadual de Londrina

Alunos de Graduação em Engenharia Elétrica e de Iniciação Científica.

Fernando Alves Negrão, Universidade Estadual de Londrina

Alunos de Graduação em Engenharia Elétrica e de Iniciação Científica.

Edgar Matsuo Tsuzuki, Universidade Estadual de Londrina

Alunos de Graduação em Engenharia Elétrica e de Iniciação Científica.

Carlos Dias Maciel, Universidade Estadual de Londrina

Docente do Departamento de Engenharia Elétrica da Universidade Estadual de Londrina.

Downloads

PDF (Português (Brasil))

Published

2004-07-15

How to Cite

Scalassara, P. R., Negrão, F. A., Tsuzuki, E. M., & Maciel, C. D. (2004). Speed of Sound and Materials Thickness Measuring by Ultrasound. Semina: Ciências Exatas E Tecnológicas, 23(1), 9–16. https://doi.org/10.5433/1679-0375.2002v23n1p9

Download Citation

Issue

Vol. 23 No. 1 (2002)

Section

Original Article

License

The Copyright Declaration for articles published in this journal is the author’s right. Since manuscripts are published in an open access Journal, they are free to use, with their own attributions, in educational and non-commercial applications. The Journal has the right to make, in the original document, changes regarding linguistic norms, orthography, and grammar, with the purpose of ensuring the standard norms of the language and the credibility of the Journal. It will, however, respect the writing style of the authors. When necessary, conceptual changes, corrections, or suggestions will be forwarded to the authors. In such cases, the manuscript shall be subjected to a new evaluation after revision. Responsibility for the opinions expressed in the manuscripts lies entirely with the authors.

This journal is licensed with a license Creative Commons Attribution-NonCommercial 4.0 International.