Underwater Acoustic Wavefront Visualization by Scanning Laser Doppler Vibrometer for the Characterization of Focused Ultrasonic Transducers.
The analysis of acoustic wave fields is important for a large number of engineering designs, communication and health-related reasons. The visualization of wavefronts gives valuable information about the type of transducers and excitation signals more suitable for the test itself. This article is dedicated to the development of a fast procedure for acoustic fields visualization in underwater conditions, by means of laser Doppler vibrometer measurements. The ultrasonic probe is a focused transducer excited by a chirp signal. The scope of this work is to evaluate experimentally the properties of the sound beam in order to get reliable information about the transducer itself to be used in many kinds of engineering tests and transducer design.
Vrije Universiteit Brussel, 1050 Brussels, Belgium. roberto.longo@eseo.fr.|ESEO Group-GSII, 49107 Angers, France3 LUNAM Université, LAUM-CNRS UMR 6613, 72085 Le Mans, France. roberto.longo@eseo.fr.|LUNAM Université, LAUM-CNRS UMR 6613, 72085 Le Mans, France. roberto.longo@eseo.fr.
Roberto
R
Longo
Vrije Universiteit Brussel, 1050 Brussels, Belgium. Steve.Vanlanduit@vub.ac.be.
Steve
S
Vanlanduit
Vrije Universiteit Brussel, 1050 Brussels, Belgium. Galid.Arroud@vub.ac.be.
Galid
G
Arroud
Vrije Universiteit Brussel, 1050 Brussels, Belgium. Patrick.Guillaume@vub.ac.be.
Patrick
P
Guillaume
focused transducers; scanning laser Doppler vibrometer; underwater ultrasonic