EP 1169143 A1 20020109 - IMPULSE SOUND TRANSDUCER WITH AN ELEMENTARY BLOCK MADE OF PIEZOELECTRIC MATERIAL
Title (en)
IMPULSE SOUND TRANSDUCER WITH AN ELEMENTARY BLOCK MADE OF PIEZOELECTRIC MATERIAL
Title (de)
IMPULS-ULTRASCHALLWANDLER MIT EINEM ELEMENTARBLOCK AUS PIEZOELEKTISCHEM MATERIAL
Title (fr)
TRANSDUCTEUR ACOUSTIQUE A IMPULSIONS COMPRENANT UN BLOC ELEMENTAIRE EN MATERIAU PIEZOCERAMIQUE
Publication
Application
Priority
- DE 19917429 A 19990419
- EP 0003489 W 20000418
Abstract (en)
[origin: US6720715B1] The invention relates to an impulse sound traducer for the ultrasonic range. Transducers in prior art require complicated and expensive technology in order to really generate good impulses. The invention aims at providing a sound transducer for the ultrasonic range, which transmits strong and short impulses, has high senstivity and ensures repeatability of parameters. This is achieved by a sound transducer for the ultrasonic range that is used both as a transmitter and as a receiver and is comprised of an elementary block made of piezoelectric material, wherein the height of the elementary blocks consisting of piezoelectric material is bigger than its width and the block on the output end of the impulse has a formed edge so that the elementary block has a T-shape in the longitudinal section, wherein one electrode is provided on the outlet surface while the other electrode extends above the edge on the block.
IPC 1-7
IPC 8 full level
B06B 1/06 (2006.01)
CPC (source: EP US)
B06B 1/0644 (2013.01 - EP US)
Citation (search report)
See references of WO 0062946A1
Designated contracting state (EPC)
AT DE DK FR GB SE
DOCDB simple family (publication)
US 6720715 B1 20040413; AT E285302 T1 20050115; CA 2366956 A1 20001026; DE 19917429 A1 20001026; DE 50009032 D1 20050127; EP 1169143 A1 20020109; EP 1169143 B1 20041222; PL 351622 A1 20030519; WO 0062946 A1 20001026
DOCDB simple family (application)
US 7035101 A 20011019; AT 00929375 T 20000418; CA 2366956 A 20000418; DE 19917429 A 19990419; DE 50009032 T 20000418; EP 0003489 W 20000418; EP 00929375 A 20000418; PL 35162200 A 20000418