| Autor: |
A. Ramos-Fernandez, E. Riera-Franco de Sarabia, L . Gomez-Ullate |
| Rok vydání: |
1990 |
| Předmět: |
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| Zdroj: |
Le Journal de Physique Colloques. 51:C2-603 |
| ISSN: |
0449-1947 |
| DOI: |
10.1051/jphyscol:19902142 |
| Popis: |
This paper presents an experimental technique for analyzing the propagation of transient ultrasonic patterns generated by broadband thickness-resonant discs in water over the near zones. The amplitude peak detection of the received signals from focused and unfocused single element transducers is made by using shifting narrow temporal gates. The 3D and 2D pressure plots obtained, allow the snapshot visualization of the pulsed wavefronts, they also provide information on the vibration pattern of the transducer face, which results in the detection of possible constructed anomalies on the piezoelectric disc of the emitters. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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