EP 0217680 B1 19891129 - PIEZOELECTRIC TRANSDUCER OF THE TONPILZ TYPE FOR USE EITHER AS A WIDEBAND TRANSMITTER OR AS A RECEIVER
Title (en)
PIEZOELECTRIC TRANSDUCER OF THE TONPILZ TYPE FOR USE EITHER AS A WIDEBAND TRANSMITTER OR AS A RECEIVER
Publication
Application
Priority
FR 8507081 A 19850510
Abstract (en)
[origin: US4811307A] A Tonpilz type piezoelectric transducer which can be used alternately as a wide-band receiver and an emitter includes a stack of pairs of piezoelectric segments separated by electrodes, the stack being placed between a horn and a countermass. An emitter is connected by a conductor to one of the two electrodes for each segment pair. One pair of segments next to the countermass is separated from the others by an insulator. The two electrodes to either side of the one pair are connected in parallel to a receiver and, through two diodes connected in opposition, to a grounded common conductor.
IPC 1-7
IPC 8 full level
B06B 1/06 (2006.01)
CPC (source: EP US)
B06B 1/0618 (2013.01 - EP US)
Designated contracting state (EPC)
DE GB NL
DOCDB simple family (publication)
FR 2581821 A1 19861114; FR 2581821 B1 19881007; DE 3667233 D1 19900104; EP 0217680 A1 19870408; EP 0217680 B1 19891129; US 4811307 A 19890307
DOCDB simple family (application)
FR 8507081 A 19850510; DE 3667233 T 19860506; EP 86400971 A 19860506; US 86170486 A 19860512