EP 2229242 B1 20110518 - ULTRASONIC TRANSDUCER FOR GENERATING ASYMMETRIC SOUND FIELDS
Title (en)
ULTRASONIC TRANSDUCER FOR GENERATING ASYMMETRIC SOUND FIELDS
Title (de)
ULTRASCHALLWANDLER ZUR ERZEUGUNG ASYMMETRISCHER SCHALLFELDER
Title (fr)
TRANSDUCTEUR ULTRASONORE PERMETTANT LA RÉALISATION DE CHAMPS ACOUSTIQUES ASYMÉTRIQUES
Publication
Application
Priority
- DE 2008002140 W 20081219
- DE 102008003594 A 20080109
Abstract (en)
[origin: WO2009086805A1] The invention relates to an ultrasonic transducer for generating asymmetric sound fields. Said ultrasonic transducer comprises a housing (1) that encompasses an elongate diaphragm (2) and a plate-shaped transducer element (3) which is arranged on one side of a main surface of the diaphragm (2), is made of an electrostrictive material, and allows the diaphragm (2) to be excited to generate oscillations in the ultrasonic range. A gap is formed between the diaphragm (2) and the transducer element (3), the diaphragm (2) being coupled to the transducer element (3) exclusively along the edge thereof. Such an ultrasonic transducer makes it possible to generate asymmetric sound fields which have an aperture ratio of 1:3 or more.
IPC 8 full level
B06B 1/06 (2006.01)
CPC (source: EP)
G10K 9/122 (2013.01)
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 MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2009086805 A1 20090716; AT E509708 T1 20110615; DE 112008003772 A5 20101209; EP 2229242 A1 20100922; EP 2229242 B1 20110518
DOCDB simple family (application)
DE 2008002140 W 20081219; AT 08869632 T 20081219; DE 112008003772 T 20081219; EP 08869632 A 20081219