EP 1084000 A1 20010321 - MULTIELEMENT SOUND PROBE COMPRISING A COMPOSITE ELECTRICALLY CONDUCTING COATING AND METHOD FOR MAKING SAME
Title (en)
MULTIELEMENT SOUND PROBE COMPRISING A COMPOSITE ELECTRICALLY CONDUCTING COATING AND METHOD FOR MAKING SAME
Title (de)
SCHALWANDLER AUS MEHREREN ELEMENTEN MIT LEITFÄHIGER VERBUNDSCHICHT UND VERFAHREN ZUR HERSTELLUNG
Title (fr)
SONDE ACOUSTIQUE MULTIELEMENTS COMPRENANT UN FILM COMPOSITE CONDUCTEUR ET PROCEDE DE FABRICATION
Publication
Application
Priority
- FR 9901284 W 19990601
- FR 9807094 A 19980605
Abstract (en)
[origin: FR2779575A1] The invention concerns a multielement sound probe comprising a backing (1), an electrical circuit (2) with strip conductors (Pi1) connected to elementary piezoelectric transducers (Ti1). The probe further comprises, a composite material electrically conducting coating located between the piezoelectric transducers (Ti1k) and the strip conductors (Pi1). In standard fashion, the piezoelectric transducers are cut out into sub-elements to obtain elements acoustically uncoupled and electrically coupled. The presence of the composite material electrically conducting coating (3) enables the strip conductors to be dimensioned with respect to the sub-elements and constitutes an intermediate element relative to the thermal expansion variations between the backing (1) and the piezoelectric transducers.
IPC 1-7
IPC 8 full level
B06B 1/06 (2006.01)
CPC (source: EP KR US)
B06B 1/06 (2013.01 - KR); B06B 1/0629 (2013.01 - EP US)
Citation (search report)
See references of WO 9964169A1
Designated contracting state (EPC)
FR IT NL
DOCDB simple family (publication)
FR 2779575 A1 19991210; FR 2779575 B1 20030530; CN 1217749 C 20050907; CN 1304340 A 20010718; EP 1084000 A1 20010321; EP 1084000 B1 20041013; JP 2002517310 A 20020618; JP 4288002 B2 20090701; KR 100577036 B1 20060508; KR 20010043944 A 20010525; US 6522051 B1 20030218; WO 9964169 A1 19991216
DOCDB simple family (application)
FR 9807094 A 19980605; CN 99807004 A 19990601; EP 99922247 A 19990601; FR 9901284 W 19990601; JP 2000553223 A 19990601; KR 20007013515 A 20001130; US 70156000 A 20001205