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Title: Lithium niobate explosion monitor

Abstract

Monitoring explosive devices is accomplished with a substantially z-cut lithium niobate crystal in abutment with the explosive device. Upon impact by a shock wave from detonation of the explosive device, the crystal emits a current pulse prior to destruction of the crystal. The current pulse is detected by a current viewing transformer and recorded as a function of time in nanoseconds. In order to self-check the crystal, the crystal has a chromium film resistor deposited thereon which may be heated by a current pulse prior to detonation. This generates a charge which is detected by a charge amplifier.

Inventors:
 [1];  [2];  [3];  [3];  [3]
+ Show Inventor Affiliations
  1. Clearwater, FL
  2. Los Lunas, NM
  3. Albuquerque, NM
Issue Date:
Research Org.:
AT&T
OSTI Identifier:
867239
Patent Number(s):
4893049
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
G - PHYSICS G21 - NUCLEAR PHYSICS G21J - NUCLEAR EXPLOSIVES
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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DOE Contract Number:  
AC04-76DP00789
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
lithium; niobate; explosion; monitor; monitoring; explosive; devices; accomplished; substantially; z-cut; crystal; abutment; device; impact; shock; wave; detonation; emits; current; pulse; prior; destruction; detected; viewing; transformer; recorded; function; time; nanoseconds; self-check; chromium; film; resistor; deposited; thereon; heated; generates; charge; amplifier; charge amplifier; explosive device; lithium niobate; current pulse; shock wave; deposited thereon; film resistor; niobate crystal; explosive devices; chromium film; /310/73/

Citation Formats

Bundy, Charles H, Graham, Robert A, Kuehn, Stephen F, Precit, Richard R, and Rogers, Michael S. Lithium niobate explosion monitor. United States: N. p., 1990. Web.
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Bundy, Charles H, Graham, Robert A, Kuehn, Stephen F, Precit, Richard R, & Rogers, Michael S. Lithium niobate explosion monitor. United States.
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Bundy, Charles H, Graham, Robert A, Kuehn, Stephen F, Precit, Richard R, and Rogers, Michael S. Mon . "Lithium niobate explosion monitor". United States. https://www.osti.gov/servlets/purl/867239.
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@article{osti_867239,
title = {Lithium niobate explosion monitor},
author = {Bundy, Charles H and Graham, Robert A and Kuehn, Stephen F and Precit, Richard R and Rogers, Michael S},
abstractNote = {Monitoring explosive devices is accomplished with a substantially z-cut lithium niobate crystal in abutment with the explosive device. Upon impact by a shock wave from detonation of the explosive device, the crystal emits a current pulse prior to destruction of the crystal. The current pulse is detected by a current viewing transformer and recorded as a function of time in nanoseconds. In order to self-check the crystal, the crystal has a chromium film resistor deposited thereon which may be heated by a current pulse prior to detonation. This generates a charge which is detected by a charge amplifier.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 1990},
month = {Mon Jan 01 00:00:00 EST 1990}
}
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