Title:
【発明の名称】水中低周波音源
Document Type and Number:
Japanese Patent JP2001502789
Kind Code:
A
Abstract:
PCT No. PCT/GB96/02951 Sec. 371 Date Sep. 8, 1998 Sec. 102(e) Date Sep. 8, 1998 PCT Filed Nov. 29, 1996 PCT Pub. No. WO97/20233 PCT Pub. Date Jun. 5, 1997An 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.
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Inventors:
Harvey, Leslie Giyoge
Nedwell, Jerami Ross
Nedwell, Jerami Ross
Application Number:
JP52029097A
Publication Date:
February 27, 2001
Filing Date:
November 29, 1996
Export Citation:
Assignee:
United Kingdom
International Classes:
G01V1/02; G10K11/18; H04R23/00; (IPC1-7): G01V1/02; H04R23/00
Attorney, Agent or Firm:
Yoshio Kawaguchi (1 person outside)