EP 0462037 B1 19940907 - Underwater electro-acoustic transducer.
Title (en)
Underwater electro-acoustic transducer.
Title (de)
Elektroakustischer Unterwasserwandler.
Title (fr)
Transducteur électro-acoustique immergé.
Publication
Application
Priority
FR 9007552 A 19900612
Abstract (en)
[origin: EP0462037A1] The subject of the present invention are underwater electro-acoustic transducers and a method for manufacturing these transducers. A transducer according to the invention comprises, in a cylindrical casing (3), a first stack of piezoelectric plates (washers) (6) coaxial with the second stack. It comprises a top (1) and a counter-mass (2). It comprises a rigid part (8) which is inserted between the first and the second stacks. A first end (A) of the first stack bears against a bearing face (1A) of the top. A first end (D) of the second stack bears against a bearing face (2A) of the counter-mass. The two ends (B and C) of the two stacks bear against bearing faces (81 and 82) of the intermediate part. One application is the construction of underwater electro-acoustic transducers of high power per unit volume. <IMAGE>
IPC 1-7
IPC 8 full level
CPC (source: EP US)
B06B 1/0618 (2013.01 - EP US); G10K 9/121 (2013.01 - EP US); Y10T 29/49005 (2015.01 - EP US)
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
EP 0462037 A1 19911218; EP 0462037 B1 19940907; CA 2044335 A1 19940106; DE 69103819 D1 19941013; FR 2663182 A1 19911213; FR 2663182 B1 19920918; US 5130953 A 19920714
DOCDB simple family (application)
EP 91430011 A 19910610; CA 2044335 A 19910611; DE 69103819 T 19910610; FR 9007552 A 19900612; US 71294791 A 19910610