Ammunition and explosives – Mines – Marine type
Patent
1985-08-05
1987-10-06
Jordan, Charles T.
Ammunition and explosives
Mines
Marine type
102417, F42B 2204
Patent
active
046975195
ABSTRACT:
A smart mine includes a pair of He.sup.3 magnetic sensors exteriorly connected to a head compartment of a mine housing. A torpedo compartment for housing a torpedo completes the mine housing. The head compartment contains the sensor support electronics which includes a phase locked loop means having a pair of digital phase locked loops connected between the sensors and a difference circuit whereby a difference signal representative of the difference between the pair of He.sup.3 magnetic sensors is produced for processing in a signal processor for determining the presence of large ferromagnetic bodies and producing a torpedo firing signal.
REFERENCES:
patent: 2966853 (1961-01-01), Gilfillan, Jr. et al.
patent: 3135199 (1964-06-01), Brown
patent: 3206671 (1965-09-01), Colegrove, Jr. et al.
patent: 4003291 (1977-01-01), Vass et al.
patent: 4395952 (1983-08-01), Hickey
patent: 4566367 (1986-01-01), Hickey
patent: 4567439 (1986-01-01), McGregor
patent: 4586421 (1986-05-01), Hickey et al.
Colegrove Forrest D.
Marton Bela
McGregor Douglas D.
Rice, Jr. Joseph A.
Comfort James T.
Heiting Leo N.
Jordan Charles T.
Sharp Melvin
Texas Instruments Incorporated
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