EP 0684084 B1 19981125 - Method and transducer for the emission of broadband low frequency acoustic waves in unlimited depth
Title (en)
Method and transducer for the emission of broadband low frequency acoustic waves in unlimited depth
Title (de)
Verfahren und Wandler zum Ausstrahlen von Breitband- und Niederfrequenz-Schallwellen in unbegrenzter Tauchtiefe
Title (fr)
Procédé et transducteur pour émettre des ondes acoustiques à larges bandes et basses fréquences en profondeur d'immersion illimitée
Publication
Application
Priority
FR 9406439 A 19940527
Abstract (en)
[origin: EP0684084A1] the transducer includes at least one electro-acoustic motor (1) setting all the walls of the device vibrating for transmission of waves. A hollow box (5) encloses the motor, defining the vibrating wall (3) surrounding a cavity (7). The transducer also includes at least one opening (6) allowing communication between the cavity and the ambient medium (4). One of more flexible containers (8) are provided, holding a compressible fluid (9) which occupies the space between the electro-acoustic motor (1) and the vibrating walls (3).
IPC 1-7
IPC 8 full level
B06B 1/06 (2006.01)
CPC (source: EP US)
B06B 1/0618 (2013.01 - EP US)
Designated contracting state (EPC)
DE DK ES FR GB IT NL SE
DOCDB simple family (publication)
EP 0684084 A1 19951129; EP 0684084 B1 19981125; CA 2150297 A1 19951128; CA 2150297 C 20061219; DE 69506169 D1 19990107; DE 69506169 T2 19990506; DK 0684084 T3 19990809; ES 2124507 T3 19990201; FR 2720589 A1 19951201; FR 2720589 B1 19960705; US 5579287 A 19961126
DOCDB simple family (application)
EP 95401229 A 19950526; CA 2150297 A 19950526; DE 69506169 T 19950526; DK 95401229 T 19950526; ES 95401229 T 19950526; FR 9406439 A 19940527; US 45285495 A 19950530