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. 8 figs.
- Inventors:
- Issue Date:
- OSTI Identifier:
- 7067421
- Patent Number(s):
- 4893049
- Application Number:
- PPN: US 6-868375
- Assignee:
- Dept. of Energy, Washington, DC (United States)
- DOE Contract Number:
- AC04-76DP00789
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 29 May 1986
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE; EXPLOSIVES; MONITORING; MONITORS; DESIGN; OPERATION; BLAST EFFECTS; CRYSTALS; DETONATIONS; LITHIUM COMPOUNDS; NIOBATES; TIME MEASUREMENT; ALKALI METAL COMPOUNDS; MEASURING INSTRUMENTS; NIOBIUM COMPOUNDS; OXYGEN COMPOUNDS; REFRACTORY METAL COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; 450000* - Military Technology, Weaponry, & National Defense
Citation Formats
Bundy, C H, Graham, R A, Kuehn, S F, Precit, R R, and Rogers, M S. Lithium niobate explosion monitor. United States: N. p., 1990.
Web.
Bundy, C H, Graham, R A, Kuehn, S F, Precit, R R, & Rogers, M S. Lithium niobate explosion monitor. United States.
Bundy, C H, Graham, R A, Kuehn, S F, Precit, R R, and Rogers, M S. Tue .
"Lithium niobate explosion monitor". United States.
@article{osti_7067421,
title = {Lithium niobate explosion monitor},
author = {Bundy, C H and Graham, R A and Kuehn, S F and Precit, R R and Rogers, M 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. 8 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1990},
month = {1}
}
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