Speed of Sound and Materials Thickness Measuring by Ultrasound

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.

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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.

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

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Original Article
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