Fiber optic sensing in a high explosives environment
This paper presents results in applying fiber optic technology to high explosives experiments, including: detonation light arrival time, shock wave analysis, control lines, and pressure sensing. In the correct experimental configuration, coaxial and fiber optic cable can provide excellent signals, but the fiber optic cable's characteristics under high explosive shock environments provide superior signal definition. Enhanced frequency response and cost effectiveness provide an excellent basis for future optical sensor development. Experiments were conducted comparing the signal response of several shock wave time-of-arrival methods i.e., fabricated mechanical switches, piezoelectric pin configurations, and a plastic fiber optic sensor system. The fiber optic signals were better defined and had a faster response. Fiber optic sensors with two different configurations were used as detonation light sensors. The sensors were oriented in a perpendicular and normal configuration with respect to the plane of detonation and multiple non-time-coincident signals were lensed together into a common instrument fiber. 6 refs., 12 figs.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 6214723
- Report Number(s):
- SAND-89-0337C; CONF-890694-6; ON: DE89010863
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
450100 -- Military Technology
Weaponry
& National Defense-- Chemical Explosions & Explosives
47 OTHER INSTRUMENTATION
DETONATIONS
ELECTRONIC CIRCUITS
EXPLOSIVES
FIBER OPTICS
FIBERS
MEASURING INSTRUMENTS
OPTICAL FIBERS
PRESSURE MEASUREMENT
SHOCK WAVES