EP 0641262 B1 19960417 - UNDERWATER ACOUSTIC ANTENNA HAVING A SURFACE SENSOR
Title (en)
UNDERWATER ACOUSTIC ANTENNA HAVING A SURFACE SENSOR
Title (de)
AKUSTISCHE UNTERWASSERANTENNE MIT FLÄCHENSENSOR
Title (fr)
ANTENNE ACOUSTIQUE SOUS-MARINE A CAPTEUR SURFACIQUE
Publication
Application
Priority
- FR 9300444 W 19930507
- FR 9206274 A 19920522
Abstract (en)
[origin: FR2691596A1] The acoustic antenna of the invention includes at least one surface sensor formed from a stack of conducting layers and piezoelectric dielectric layers contained in an elastic material coating. The assembly so formed constitues a flat panel (2) mounted on a naval vessel hull (5), said panel being moulded to the shape of the hull. The panel is mounted on the hull by means of two enclosed edge rails (3, 4) with a water layer (6) being left between the panel (2) and the hull (5). Advantageously, the coating comprises an elastic envelope filled with a viscoelastic lining material. The piezoelectric material of the sensor's dielectric layers is preferably a vinylidene polyfluoride film.
IPC 1-7
IPC 8 full level
B63G 8/39 (2006.01); B06B 1/06 (2006.01); B63B 35/00 (2006.01); B63B 49/00 (2006.01); G10K 11/00 (2006.01); G10K 11/26 (2006.01); H01Q 13/08 (2006.01); H04R 17/02 (2006.01)
CPC (source: EP US)
B06B 1/0688 (2013.01 - EP US); B63G 8/39 (2013.01 - EP US); G10K 11/008 (2013.01 - EP US); Y10S 310/80 (2013.01 - EP)
Designated contracting state (EPC)
DE GB IT
DOCDB simple family (publication)
FR 2691596 A1 19931126; FR 2691596 B1 19950428; CA 2136242 A1 19931209; CA 2136242 C 20031118; DE 69302270 D1 19960523; DE 69302270 T2 19960919; EP 0641262 A1 19950308; EP 0641262 B1 19960417; JP 3262796 B2 20020304; JP H07507427 A 19950810; US 5517467 A 19960514; WO 9324244 A1 19931209
DOCDB simple family (application)
FR 9206274 A 19920522; CA 2136242 A 19930507; DE 69302270 T 19930507; EP 93910097 A 19930507; FR 9300444 W 19930507; JP 50024994 A 19930507; US 32543294 A 19941107