Permanent Magnet Seed Field System for Flux Compression Generator

    公开(公告)号:US20220214147A1

    公开(公告)日:2022-07-07

    申请号:US17603996

    申请日:2020-04-15

    IPC分类号: F42B1/028 F42B6/00

    摘要: An explosive device composed of an auxiliary flux compression generator operating to produce a high intensity magnetic field to seed a primary flux compression generator The auxiliary flux compression generator has a first section with a magnetic field supplied by a cylindrical permanent magnet array, the first section is composed of a helical winding having a prescribed pattern configured to convert explosive energy into magnetic energy that will be used as seed magnetic field for the primary flux compression generator.

    COMPACT ULF DIGITAL COMMUNICATION DEVICE FOR UNDERGROUND AND UNDERSEA APPLICATIONS

    公开(公告)号:US20210288678A1

    公开(公告)日:2021-09-16

    申请号:US16492399

    申请日:2018-03-08

    IPC分类号: H04B1/04 H01Q9/16 H01H3/26

    摘要: An ultra-low or very low frequency communication device composed of: a circuit unit operative to produce an alternating current; and a dipole antenna connected to receive the alternating current and to convert the alternating current into electromagnetic radiation. The antenna is composed of an unshielded radiating conductor and a shielded return conductor connected in series with the radiating conductor, and the return conductor is shielded by a Faraday shield such as a collisionless plasma column that surrounds the return conductor to prevent any electromagnetic radiation from the return conductor.

    Hypervelocity projectile launching system
    10.
    发明授权
    Hypervelocity projectile launching system 有权
    超高速射弹发射系统

    公开(公告)号:US09476668B1

    公开(公告)日:2016-10-25

    申请号:US13916176

    申请日:2013-06-12

    IPC分类号: F41F1/00 F41B6/00

    CPC分类号: F41B6/003 F41A1/02

    摘要: A gun system for launching a projectile that forms a component of a two-part payload that also includes a pusher that is separable from the projectile. The system includes a barrel, a source of propellant gas to propel the projectile and the pusher through the barrel, and a retarding coil and an accelerating coil, each having a coil axis parallel to the barrel axis and surrounding a projectile passage through the barrel, the retarding coil being disposed closer to the source of propellant gas than the accelerating coil. The retarding coil is configured to generate electromagnetic energy in response to passage of the pusher when being propelled by propellant gas ignition, and the accelerating coil is configured and coupled to impose an accelerating force on the projectile in response to the electromagnetic energy generated by the retarding coil.

    摘要翻译: 用于发射形成两部分有效载荷的部件的射弹的枪系统,其还包括可与射弹分离的推动器。 该系统包括一个桶,一个推进剂气体源,用于推动抛射体和推动器通过筒体;以及一个延迟线圈和一个加速线圈,每个线圈和一个加速线圈具有平行于筒体轴线的线圈轴线,并围绕着穿过筒体的射弹通道, 延迟线圈设置成比加速线圈更靠近推进剂气体源。 延迟线圈构造成响应于推进剂气体点火时推动器的通过而产生电磁能量,并且加速线圈被构造和联接以响应于由延迟产生的电磁能量而对射弹施加加速力 线圈