EP 2480345 B1 20130828 - ELECTROACOUSTIC TRANSDUCER, IN PARTICULAR TRANSMITTING TRANSDUCER
Title (en)
ELECTROACOUSTIC TRANSDUCER, IN PARTICULAR TRANSMITTING TRANSDUCER
Title (de)
ELEKTROAKUSTISCHER WANDLER, INSBESONDERE SENDEWANDLER
Title (fr)
TRANSDUCTEUR ÉLECTROACOUSTIQUE, EN PARTICULIER TRANSDUCTEUR D'ÉMISSION
Publication
Application
Priority
DE 2009001333 W 20090922
Abstract (en)
[origin: WO2011035745A2] An electroacoustic transducer, in particular a transmitting transducer for sonar systems, is disclosed, comprising two end caps (11, 12) that are arranged at a fixed distance from each other, multiple bars (13) which are braced between the two end caps (11, 12) and the ends of which are attached to the end caps (11, 12) next to each other in the peripheral direction, and an elastic shell (16) that externally encloses the bars (13). In order to significantly reduce the weight of the transducer and simplify production, composite modules (17) are attached to the bars (13) so as to excite vibrations. Each composite module (17) has electrode structures that include spaced-apart electrodes and are arranged on at least two film layers made of insulating material, and spaced-apart piezoceramic fibers which are arranged between the film layers and are contacted by the electrodes on opposite longitudinal sides.
IPC 8 full level
B06B 1/06 (2006.01)
CPC (source: EP KR US)
B06B 1/06 (2013.01 - KR); B06B 1/0655 (2013.01 - EP US); H04R 17/00 (2013.01 - KR)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
WO 2011035745 A2 20110331; WO 2011035745 A3 20110603; DE 112009005266 A5 20121115; EP 2480345 A2 20120801; EP 2480345 B1 20130828; KR 20120068935 A 20120627; US 2012213036 A1 20120823
DOCDB simple family (application)
DE 2009001333 W 20090922; DE 112009005266 T 20090922; EP 09740040 A 20090922; KR 20127010140 A 20090922; US 200913496099 A 20090922