Great depth, high efficiency, broadband, reliable low frequency transducer for acoustical oceanography

Author

Gall, Y. Le ; Boucher, D. ; Lurton, X. ; Bruneau, A.M.

Author_Institution

L.S.M, DCN Ingenierie Sud, Le Brusc, France

Volume

2

fYear

1994

fDate

13-16 Sep 1994

Abstract

Acoustical oceanography and particularly acoustic tomography (measurement of the dynamic behaviour of the ocean) has needs for low frequency, high efficiency, broadband and great depth transducers. The double-ended longitudinal Janus-Helmholtz projector designed by DCN Ingenierie Sud for active sonar widely fulfils these requirements. This article describes the frequency and depth capability optimization of this transducer. Free-flooded projectors with a first resonance below 300 Hz have then been modelled, achieved and measured

Keywords

acoustic radiators; acoustic tomography; acoustic transducers; oceanographic equipment; oceanographic techniques; underwater sound; 300 Hz; DCN Ingenierie Sud; acoustic measurement technique; acoustic tomography; acoustics; broadband; double-ended longitudinal Janus-Helmholtz projector; dynamics; equipment; free-flooded projector; high efficiency; ocean; ocean sea underwater sound; reliable low frequency transducer; Acoustic measurements; Acoustic transducers; Frequency measurement; Oceans; Piezoelectric transducers; Resonance; Samarium; Sea measurements; Sonar measurements; Tomography;

fLanguage

English

Publisher

ieee

Conference_Titel

OCEANS '94. 'Oceans Engineering for Today's Technology and Tomorrow's Preservation.' Proceedings

Conference_Location

Brest

Print_ISBN

0-7803-2056-5

Type

conf

DOI

10.1109/OCEANS.1994.364056

Filename

364056