Global Patent Index - EP 0118837 B1

EP 0118837 B1 19880622 - ULTRASONIC TRANSDUCER

Title (en)

ULTRASONIC TRANSDUCER

Publication

EP 0118837 B1 19880622 (DE)

Application

EP 84102147 A 19840229

Priority

DE 3309236 A 19830315

Abstract (en)

[origin: EP0118837A2] 1. An ultrasonic transducer having a supporting body (2), a transmitting layer (4) of a material with a relatively high dielectric constant and high acoustic impedance and a first lambda/4 coupling layer (8) that faces the transmitting layer (4), and a second lambda/4 coupling layer that faces a load, characterised in that the second lambda/4 coupling layer also serves as a receiving layer (6) and that the first lambda/4 coupling layer (8) also serves as backing for the receiving layer (6).

IPC 1-7

G10K 11/02

IPC 8 full level

A61B 8/00 (2006.01); G01N 29/24 (2006.01); G10K 11/02 (2006.01); H04R 17/00 (2006.01)

CPC (source: EP)

G10K 11/02 (2013.01)

Citation (examination)

Biomedizinische Technik, Bd. 27 Heft 7 Seiten 183-184

Designated contracting state (EPC)

AT DE FR GB

DOCDB simple family (publication)

EP 0118837 A2 19840919; EP 0118837 A3 19850515; EP 0118837 B1 19880622; AT E35338 T1 19880715; CA 1252558 A 19890411; DE 3309236 A1 19840920; DE 3472318 D1 19880728; JP H0453117 Y2 19921214; JP S59161800 U 19841030

DOCDB simple family (application)

EP 84102147 A 19840229; AT 84102147 T 19840229; CA 449456 A 19840313; DE 3309236 A 19830315; DE 3472318 T 19840229; JP 3404784 U 19840309