EP 1819191 B1 20100915 - Laminated piezoelectric transducer
Title (en)
Laminated piezoelectric transducer
Title (de)
Laminierter piezoelektrischer Wandler
Title (fr)
Transducteur piézoélectrique stratifié
Publication
Application
Priority
EP 05027342 A 20051214
Abstract (en)
[origin: EP1819191A2] An underwater acoustic transducer (10) comprising a laminated waterproof and sealed active acoustic element (14) for transducing sound and electrical signals; a front and rear housing element (24) disposed on each side of the active acoustic element (14) to define a corresponding front and rear acoustic chamber on each side of the active acoustic element (14), each housing element (24) defining a corresponding port (30) therethrough of a predetermined diameter and thickness to provide tuning of the corresponding acoustic chamber and to provide free flooding acoustic chambers; and a rear cover (38) disposed on the rear housing element (38) and defining a corresponding port (40) therethrough of a predetermined diameter and thickness to provide further tuning of the corresponding rear acoustic chamber while maintaining the free flooding characteristic of the rear acoustic chamber.
IPC 8 full level
H04R 1/44 (2006.01)
CPC (source: EP)
H04R 1/44 (2013.01); H04R 17/00 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1799009 A1 20070620; EP 1799009 B1 20090311; AT E425640 T1 20090315; AT E481824 T1 20101015; DE 602005013257 D1 20090423; DE 602005023642 D1 20101028; EP 1819191 A2 20070815; EP 1819191 A3 20070822; EP 1819191 A8 20071024; EP 1819191 B1 20100915; ES 2320559 T3 20090525; ES 2349569 T3 20110105
DOCDB simple family (application)
EP 05027342 A 20051214; AT 05027342 T 20051214; AT 07109446 T 20051214; DE 602005013257 T 20051214; DE 602005023642 T 20051214; EP 07109446 A 20051214; ES 05027342 T 20051214; ES 07109446 T 20051214