Thomson-brandt Armements

Joel Bansard

Christophe Riviere

Gerard Humily

Thierry Aureal

Low voltage-to-high voltage converter

This detonator includes a cylindrical anvil of dielectric material bearing on one face an area of electrical contact and on the other a fusible bridge of which one end is connected to the area of electrical contact via a plugged conducting hole and of which the other end is connected to an annular conducting area around the edge of the anvil. A cylindrical hollow plug is connected to the anvil by a flanged ring soldered to the plug and to the annular conducting area of the anvil. Around this plug is fitted a cylindrical flexible contact part. A closing cylinder is soldered to the plug. Inside the plug are fitted a disk of plastic material, a barrel, and an explosive charge in a case. The assembly is closed by a cap laser welded to the closing cylinder. The invention is applicable to hermetic detonator structures for initiation in particular of warheads, propellors of rockets, missiles or other guided projectiles, or of gas generators.

Pyrotechnic detonator using coaxial connections

This system includes, in a projectile P bearing explosive warheads 2, 4, with their firing device 3, 5, impact detectors 1, an inertial unit 6 and a computer 7. The computer 7 determines, on the basis of the signals from the detectors 1, the instant of impact To and the angle of incidence I of the projectile on the target and, on the basis of the signals from the inertial unit 6, the speed V of the projectile at the instant of impact. Using the data V, I and the data on the type of target C, the computer 7 determines, in real time, the optimum delay with respect to the instant To for the firing of each warhead, and applies this delay to the firing command.

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Marcilly en Vilette, France

Joel Bansard