Relative velocity sensor for void sensing fuzes and the like

Details Relative velocity sensor for void sensing fuzes and the like Relative velocity sensor for void sensing fuzes and the like

1982-07-26

1984-11-06

Jordan, Charles T.

Ammunition and explosives

Igniting devices and systems

Ignition or detonation circuit

102216, 102266, F42C 1106

Patent

active

044805500

ABSTRACT:
A relative velocity sensor for projectile fuzes and the like provides adaptive penetration delay for maximum effectiveness. A pair of contact activated switches on the fuze spaced a known distance apart provide electrical signals useful for calculating the relative velocity of the projectile with respect to a target. An adaptive penetration delay circuit utilizes these signals to detonate the projectile after a delay period determined by the relative velocity. Low graze angle impacts will cause immediate detonation of the fuze. The invention provides simple, effective means for achieving adaptive target penetration delay with very low in-flight power consumption.

REFERENCES:
patent: 2485887 (1949-10-01), Jordan
patent: 2887056 (1959-05-01), Perret
patent: 3158705 (1964-11-01), Bliss
patent: 3589295 (1971-06-01), Packer
patent: 3788225 (1974-01-01), Held
patent: 3862602 (1975-01-01), Manning
patent: 3955508 (1976-05-01), Will et al.
patent: 4019440 (1977-04-01), Strike

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