EP 0090267 B1 19870204 - ULTRASONIC TRANSDUCER AND METHOD FOR ITS MANUFACTURE
Title (en)
ULTRASONIC TRANSDUCER AND METHOD FOR ITS MANUFACTURE
Publication
Application
Priority
DE 3211734 A 19820330
Abstract (en)
[origin: EP0090267A1] 1. An ultrasonic applicator comprising an acoustic head which has finely divided transducer elements (2), a plurality of which are electrically combined to form groups (3) by contact sheets which are placed onto the counter-surfaces (6) of the transducer elements (2), which are opposite the reflecting surfaces (5), characterised in that the contact sheets have the shape of a longitudinal strip (20; 22) which extends in the region between the ends of the transducer elements (2) at right angles to the counter-surfaces (6), that the strip (20; 22) is designed as a comb (7) with a plurality of electrical contact lugs (8) and a plurality of consecutive recesses (9; 21), where the recesses are open at the strip edge which faces away from the counter-surfaces (6) of the transducer elements (2) and where their depth of cut (h, h') in the direction of the counter-surfaces (6) of the transducer elements (2) is smaller than the overall height (H) of the strip (20; 22), that in the region of each recess (9; 21) the strip (20, 22) is provided with at least one slot (12) which extends through the strip ridge (10) from the recess (9; 21) to a gap (14) between two adjacent transducer elements (2), and thereby separates two adjacent transducer elements (2), and that the base width (c) of the recess (9, 21) is essentially greater than the width (s) of the slot (12).
IPC 1-7
IPC 8 full level
B06B 1/06 (2006.01); G10K 11/34 (2006.01)
CPC (source: EP)
B06B 1/0622 (2013.01)
Designated contracting state (EPC)
AT CH DE FR GB LI
DOCDB simple family (publication)
EP 0090267 A1 19831005; EP 0090267 B1 19870204; AT E25439 T1 19870215; DE 3211734 A1 19831006; DE 3369758 D1 19870312
DOCDB simple family (application)
EP 83102613 A 19830316; AT 83102613 T 19830316; DE 3211734 A 19820330; DE 3369758 T 19830316