Low frequency underwater sound source

Details Low frequency underwater sound source Low frequency underwater sound source

G - Physics

10

K

G10K 15/00 (2006.01) G01S 7/524 (2006.01) G01V 1/02 (2006.01) G10K 11/18 (2006.01) H04R 1/44 (2006.01)

Patent

CA 2238972

An acoustic generating system is described incorporating a bubble generator (1) for forming pressurised gas bubbles and directing the bubbles in a plume from an outlet (7), and a low frequency sound source (2) to apply a varying pressure to the base of the plume of bubbles to modulate (8) the plume of bubbles, whereby a source of low frequency sound waves is produced. A method for generating and transmitting a low frequency acoustic wave using is also described.

L'invention concerne un système de génération acoustique incorporant un générateur (1) de bulles destiné à former des bulles de gaz sous pression et à diriger les bulles dans un panache depuis une sortie (7), ainsi qu'une source sonore basse fréquence (2) destinée à appliquer une pression variable sur la base du panache de bulles, afin de moduler (8) ce dernier, ce qui permet de produire une source d'ondes sonores basse fréquence. L'invention concerne également un procédé de génération et de transmission d'une onde acoustique basse fréquence.

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