EP 0149114 B1 19870930 - DEPTH SENSOR FOR UNDERWATER AMMUNITION
Title (en)
DEPTH SENSOR FOR UNDERWATER AMMUNITION
Publication
Application
Priority
DE 3344750 A 19831210
Abstract (en)
[origin: EP0149114A2] 1. Evaluation circuit for a piezoelectric hydrophone used with seamines, torpedos or projectiles, characterised in that the piezoelectric hydrophone (4) for target acquisition by sound detection is additionally connected to a high-impedance DC amplifier (20) for registration of the charge variation on the piezoelement caused in proportion by the hydrostatic pressure of the water depth.
IPC 1-7
IPC 8 full level
F42B 22/04 (2006.01); F42C 11/00 (2006.01); F42C 11/02 (2006.01); F42C 13/06 (2006.01)
CPC (source: EP)
F42B 22/04 (2013.01); F42C 11/005 (2013.01); F42C 11/02 (2013.01); F42C 13/06 (2013.01)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0149114 A2 19850724; EP 0149114 A3 19861015; EP 0149114 B1 19870930; DE 3344750 A1 19850620; DE 3344750 C2 19871022; DE 3466594 D1 19871105
DOCDB simple family (application)
EP 84114972 A 19841208; DE 3344750 A 19831210; DE 3466594 T 19841208