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Title: Proximity fuze

Abstract

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.

Inventors:
 [1]
  1. (Stockton, CA)
Issue Date:
Research Org.:
AT & T CORP
OSTI Identifier:
867082
Patent Number(s):
4859054
Application Number:
07/071,952
Assignee:
United States of America as represented by United States (Washington, DC) SNL
DOE Contract Number:  
AC04-76DP00789
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
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/

Citation Formats

Harrison, Thomas R. Proximity fuze. United States: N. p., 1989. Web.
Harrison, Thomas R. Proximity fuze. United States.
Harrison, Thomas R. Tue . "Proximity fuze". United States. https://www.osti.gov/servlets/purl/867082.
@article{osti_867082,
title = {Proximity fuze},
author = {Harrison, Thomas R.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1989},
month = {8}
}

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