Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1981-01-16
1982-04-13
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
340557, G01V 904
Patent
active
043249779
ABSTRACT:
A synthesized target system utilizes emitters in the microwave or laser frequency for generating an electromagnetic energy curtain. Detectors are operatively disposed for detecting reflections within the energy curtain caused by penetrations of the curtain by one or more projectiles. A monitor is connected to the output of the detectors, and a recorder is used for storing the data output of the monitor. The event of passage of projectiles through the energy curtain, and their location upon penetration thereof, is monitored, scored, recorded and can be printed out, in hard-copy form, in real time. Physical targets and down-range human intervention therewith are eliminated.
REFERENCES:
patent: 3047723 (1962-07-01), Knapp
patent: 3475029 (1969-10-01), Hyman
patent: 3624401 (1971-11-01), Stoller
patent: 3727069 (1973-04-01), Crittenden et al.
patent: 3807858 (1974-04-01), Finch
Edelberg Nathan
Gibson Robert P.
Nelms David C.
Yarmovsky Max
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