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EP 0363032 A2 19900411 - Flextensional transducers.

Title (en)

Flextensional transducers.

Title (de)

Flexeinsgespannter Wandler.

Title (fr)

Transducteurs flextensionnels.

Publication

EP 0363032 A2 19900411 (EN)

Application

EP 89309332 A 19890914

Priority

GB 8823245 A 19881004

Abstract (en)

A flextensional transducer comprising a shell (10) defining a cavity and drive means (12) located in the cavity and adapted to cause the shell to flex and further comprising a Helmholtz resonator (10, 11, 25) for forming a hydrostatic pressure link and a low frequency acoustic link with the medium in which the flextensional transducer is located.

IPC 1-7

G10K 9/12; G10K 11/04

IPC 8 full level

H04R 1/44 (2006.01); G10K 9/12 (2006.01); G10K 11/04 (2006.01); H04R 23/00 (2006.01)

CPC (source: EP)

G10K 9/121 (2013.01); G10K 11/04 (2013.01)

Designated contracting state (EPC)

DE FR GB NL

DOCDB simple family (publication)

EP 0363032 A2 19900411; EP 0363032 A3 19901024; GB 8823245 D0 19890419; JP H02123900 A 19900511; NO 893824 D0 19890926; NO 893824 L 19900405

DOCDB simple family (application)

EP 89309332 A 19890914; GB 8823245 A 19881004; JP 24936089 A 19890927; NO 893824 A 19890926