Ammunition and explosives – Igniting devices and systems – Laser or light initiated
Patent
1993-09-07
1995-05-09
Pihulic, Daniel T.
Ammunition and explosives
Igniting devices and systems
Laser or light initiated
166 63, F42C 1900, E21B 4311
Patent
active
054130450
ABSTRACT:
A detonation system 10 particularly suitable for use in subterranean environments, for example in oil exploration and production, uses a detonating device 2 containing explosive material 3. The explosive material 3 is detonated by a pulse of laser light of a pre-determined frequency and power. The laser pulse is sent down a fiber optic line 5 from a laser 6 through an optical splitter 4 which is designed to reflect all frequencies apart from the above mentioned pre-determined frequency. To test the integrity of the fiber optic line a test signal from a second laser 11 is sent down the optical fiber line. The test signal has a different frequency and much lower power and is therefore reflected back along the fiber optic line by the optical splitter where it can be detected. This test signal allows testing while considerably reducing the chances of accidental damage.
REFERENCES:
patent: 3812783 (1974-05-01), Yang et al.
patent: 4391195 (1983-07-01), Shann
patent: 4860654 (1989-08-01), Chawla et al.
patent: 4862802 (1989-09-01), Streifer et al.
patent: 4917014 (1990-04-01), Loughry et al.
patent: 5001981 (1991-03-01), Shaw
patent: 5138946 (1992-08-01), Soltz et al.
Dubno Herbert
Pihulic Daniel T.
LandOfFree
Detonation system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Detonation system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Detonation system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1698679