Proximity fuze

Patent · Tue Aug 22 00:00:00 EDT 1989

OSTI ID:867082

Harrison, Thomas R ^[1]

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1. Stockton, CA

A proximity fuze system includes an optical ranging apparatus, a detonation circuit controlled by the optical ranging apparatus, and an explosive charge detonated by the detonation cirtcuit. The optical ranging apparatus includes a pulsed laser light source for generating target ranging light pulses and optical reference light pulses. A single lens directs ranging pulses to a target and collects reflected light from the target. An optical fiber bundle is used for delaying the optical reference pulses to correspond to a predetermined distance from the target. The optical ranging apparatus includes circuitry for providing a first signal depending upon the light pulses reflected from the target, a second signal depending upon the light pulses from the optical delay fiber bundle, and an output signal when the first and second signals coincide with each other. The output signal occurs when the distance from the target is equal to the predetermined distance form the target. Additional circuitry distinguishes pulses reflected from the target from background solar radiation.

• Research Organization: AT&T
• DOE Contract Number: AC04-76DP00789
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4859054
• Application Number: 07/071,952
• OSTI ID: 867082
• Country of Publication: United States
• Language: English

Related Subjects

proximity
fuze
optical
ranging
apparatus
detonation
circuit
controlled
explosive
charge
detonated
cirtcuit
pulsed
laser
light
source
generating
target
pulses
reference
single
lens
directs
collects
reflected
fiber
bundle
delaying
correspond
predetermined
distance
circuitry
providing
signal
depending
delay
output
signals
coincide
occurs
equal
form
additional
distinguishes
background
solar
radiation
signal depending
pulses reflected
reference pulse
light pulses
light source
optical fiber
output signal
laser light
solar radiation
pulsed laser
predetermined distance
reflected light
explosive charge
light pulse
optical delay
reference light
optical reference
ranging apparatus
optical ranging
fiber bundle
proximity fuze
/356/102/342/