Dimensional characterization of an elastic tube using the spectrogram and the reassigned spectrogram time-frequency analysis

The dimensional characterization of an elastic tube can be done thanks to its cut-off frequencies of the waves propagating around the tube. In this work, we propose to determine certain geometrical properties of a tube such as the radii radio b/a. The spectrogram and the reassigned spectrogram time-...

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Bibliographic Details
Published in2010 4th International Symposium on Communications, Control and Signal Processing (ISCCSP) pp. 1 - 5
Main Authors Latif, R, Aassif, E, Laaboubi, M, Maze, G
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.03.2010
Subjects
Communication system control
Continuous wavelet transforms
Copper
Cutoff frequency
Fourier transforms
Process control
Signal analysis
Spectrogram
Time frequency analysis
Wavelet transforms
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Summary:The dimensional characterization of an elastic tube can be done thanks to its cut-off frequencies of the waves propagating around the tube. In this work, we propose to determine certain geometrical properties of a tube such as the radii radio b/a. The spectrogram and the reassigned spectrogram time-frequency representation of a signal are used in this work to access to the sought parameters. These techniques are applied to the acoustic signals backscattered by a copper tube immersed in water. The time-frequency images of this signal permit to determine the cut-off frequency of the anti-symmetric wave A1. From these frequencies we have determined with precision the radii radio b/a of the tube.
ISBN:9781424462858
1424462851
DOI:10.1109/ISCCSP.2010.5463487