Accession Number : ADD008390

Title :   Lock Out Proximity Fuze Amplifier.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON DC

Personal Author(s) : Tucker,Robert W

Report Date : 14 Oct 1980

Pagination or Media Count : 6

Abstract : A discriminator circuit having utility in proximity fuze firing circuits is capable of distinguishing between spurious and proper signals on the basis of both amplitude and rate of amplitude rise. A firing switch, operated by a slow-charging trigger circuit, and a lock out switch, operated by a fast-charging trigger circuit are both triggered by the same signal. If the rate of input signal envelope rise is faster than that for a proper firing signal, the lock out switch fires and inhibits triggering of the firing switch. The trigger circuits are biased to permit the firing switch to be triggered before the lock out switch when the input signal rate of rise is slow enough to be followed by the slow-charging trigger circuit. For signal rates of rise which are slower than that associated with a proper signal, a capacitor in the slow-charging trigger circuit becomes charged to block triggering of the firing switch. (Author)

Descriptors :   *Patents, *Proximity fuzes, *Firing circuits, Trigger circuits, Firing tests(Ordnance), Circuits, Signals, Rates, Switches

Subject Categories : Ammunition and Explosives

Distribution Statement : APPROVED FOR PUBLIC RELEASE