EP 0728534 B1 19980204 - Transducers with light radiating heads submerged in a fluid and process for emitting low-frequency acoustic waves
Title (en)
Transducers with light radiating heads submerged in a fluid and process for emitting low-frequency acoustic waves
Title (de)
Verfahren und in einer Flussigkeit versekter Handler mit leichten Strahler zum Aussenden von niederfrequenten akustischen Wellen
Title (fr)
Procédé et transducteurs immergés dans un fluide pour l'émission d'ondes acoustiques à basse fréquence avec des pavillons allégés
Publication
Application
Priority
FR 9502092 A 19950223
Abstract (en)
[origin: EP0728534A1] Two (3) horns may be used and their peripheral edge is brought together with the internal wall of the casing (5) making a gap (e) of several tenths of a millimetre. Behind the horn and within the casing is placed a dynamic load (17) partially dividing the space into linked rear (71) and front (72) parts. Waves are emitted in a frequency range below that of the initial given range and at the most with the same initial power consumption. The range of frequencies used is around that belonging to the rear part of the space. The load is a solid wall (23) with a hole (18) for a channel (19) extending away from the horn and leaving a space around the driver (1).
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 IT SE
DOCDB simple family (publication)
EP 0728534 A1 19960828; EP 0728534 B1 19980204; CA 2170091 A1 19960824; DE 69600159 D1 19980312; DE 69600159 T2 19980820; FR 2731128 A1 19960830; FR 2731128 B1 19970411; US 5636183 A 19970603
DOCDB simple family (application)
EP 96400363 A 19960222; CA 2170091 A 19960222; DE 69600159 T 19960222; FR 9502092 A 19950223; US 60152396 A 19960214