Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1979-07-03
1981-09-15
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
324178, G01P 368
Patent
active
042899605
ABSTRACT:
Methods and apparatus for detecting the impact of munitions in a predefined arget region during weapons training. The apparatus includes a plurality of photo-detectors (12), each of which has a predetermined field of view in the horizontal plane, the target range being defined by the logical union of these fields of view. The impact of a munition within or without the target area causes a signal to be transmitted (14) to a receiving location which is proximate the gun site. At the receiving location (21), the incoming signals from the plurality of sensors are subjected to logical operations (24) which indicate to the operator of the gun whether or not the projectile impacted within or without the target area, or to the left or to the right of the target area. In addition, a running total (79) is kept of the number of successful impacts.
REFERENCES:
patent: 3727069 (1973-04-01), Crittenden, Jr. et al.
Donnally William
Smith Chester L.
Edelberg Nathan
Gibson Robert P.
Hostetter Darwin R.
Nelms David C.
The United States of America as represented by the Secretary of
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