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    • 1. 发明授权
    • Tokamak plasma heating with intense, pulsed ion beams
    • 具有强烈脉冲离子束的托卡马克等离子体加热
    • US4421713A
    • 1983-12-20
    • US247420
    • 1981-03-25
    • Wallace M. ManheimerNiels K. Winsor
    • Wallace M. ManheimerNiels K. Winsor
    • H05H1/22G21B1/02
    • H05H1/22
    • An intense, space-charge-neutralized, pulsed ion beam is used to heat a metically-confined plasma, such as a tokamak plasma, by injecting the ion beam into the plasma along a trajectory that is generally tangential to the confining magnetic field. The ion beam inductively generates a plasma return current so that no net current is produced. As the ion beam drifts in the plasma, the confining magnetic field is transformed into one which can trap the ion beam at the center of the plasma. Once the ion beam is trapped, the plasma return current is cancelled by transformer action to produce a net current which is carried by the ion beam alone. The beam transfers its energy to the plasma by classical collisions with the electrons and ions of the plasma. Heating of the plasma can be sufficient to produce a breakeven condition or ignition.
    • 通过沿着通常与限制磁场相切的轨迹将离子束注入等离子体,使用强烈的空间电荷中和的脉冲离子束来加热磁性约束等离子体,例如托卡马克等离子体。 离子束感应地产生等离子体回流电流,使得不产生净电流。 当离子束在等离子体中漂移时,限制磁场被转换成能够将离子束捕获在等离子体中心的磁场。 一旦离子束被捕获,等离子体返回电流就被变压器作用所抵消,以产生仅由离子束承载的净电流。 光束通过与等离子体的电子和离子的经典碰撞将其能量传递到等离子体。 等离子体的加热足以产生盈亏平衡条件或点火。
    • 3. 发明授权
    • Plasma propulsion apparatus and method
    • 等离子推进装置及方法
    • US4974487A
    • 1990-12-04
    • US252551
    • 1988-10-03
    • Yeshayahu S. A. GoldsteinDerek A. TidmanRodney L. BurtonDennis W. MasseyNiels K. Winsor
    • Yeshayahu S. A. GoldsteinDerek A. TidmanRodney L. BurtonDennis W. MasseyNiels K. Winsor
    • F41B6/00
    • F41B6/00
    • A projectile is accelerated in a barrel bore by applying a plasma jet to a projectile propelling fluid. The plasma jet is derived from a structure forming a capillary passage having a wall formed by a low molecular weight, dielectric powdery filler or water in many rigid containers, shaped as spheres or straw-like tubes having axes parallel to the passage longitudinal axis. The fluid and jet interact so the fluid is heated by the jet, whereby low atomic weight constituents of the fluid are sufficiently heated to become mixed with the plasma to form a high pressure mixture that is injected into the bore to accelerate the projectile. The fluid is dragged into the plasma during mixing to cool the plasma and form a boundary layer between the plasma and the barrel walls so that the mixture does not cause substantial damage to the walls of the bore. The plasma is energized by applying voltage from an electric pulse source to electrodes at opposite ends of the passage. The pulse has a wave shape and duration for initially igniting the plasma source and for thereafter applying energy to the ignited plasma to control the pressure of the mixture. Initially, the fluid cools the plasma without the mixture developing sufficient pressure to accelerate the projectile appreciably. The wave shape and duration are such that the pressure applied to the projectile remains substantially constant while the projectile is being accelerated through the barrel, as occurs during about one-half of the projectile travel time in the barrel.
    • 通过将等离子体射流施加到抛射体推进流体,炮弹在炮筒内加速。 等离子体射流源于形成毛细管通道的结构,该通道具有由许多刚性容器中的低分子量介电粉末填料或水形成的壁,其形状为具有平行于通道纵向轴线的轴的球形或稻草状管。 流体和射流相互作用使得流体被射流加热,由此流体的低原子量组分被充分加热以与等离子体混合以形成注入到孔中的高压混合物以加速射弹。 在混合期间将流体拖入等离子体以冷却等离子体并在等离子体和筒壁之间形成边界层,使得混合物不会对孔的壁造成实质损坏。 通过将来自电脉冲源的电压施加到通道的相对端处的电极来激发等离子体。 脉冲具有用于初始点燃等离子体源的波形和持续时间,并且此后将能量施加到点火等离子体以控制混合物的压力。 最初,流体冷却等离子体,而不会产生足够的压力使混合物明显加速。 波浪形状和持续时间使得当射弹在枪管中的大约一半的射弹行进时间期间发生时,施加到射弹的压力保持基本上恒定,同时射弹被加速通过枪管。
    • 6. 发明授权
    • Pulse synthesizing network and method
    • 脉冲合成网络和方法
    • US4670662A
    • 1987-06-02
    • US832586
    • 1986-02-24
    • Yeshayahu S. A. GoldsteinNiels K. Winsor
    • Yeshayahu S. A. GoldsteinNiels K. Winsor
    • H03K3/57H03K3/45
    • H03K3/57
    • A pulse forming network, responsive to a DC power supply, supplies predetermined current waveforms to a load in response to commands from a programmed source. Plural inductors are connected to switches responsive to commands from the programmed source. The switches are controlled to couple the inductors to the DC source to charge the inductors to a predetermined current level that is maintained substantially constant. The predetermined current level in each inductor is supplied to the load by switches controlled by the programmed source so that during successive intervals the predetermined constant current levels from differing numbers of the inductors flow from the inductors to the load. The inductance of each inductor, the load impedance and the duration current is supplied to the load by the inductors are such that the predetermined current level supplied by each inductor to the load is maintained relatively constant.
    • 响应于直流电源的脉冲形成网络响应于来自编程的源的命令向负载提供预定的电流波形。 响应于来自编程的源的命令,多个电感器连接到开关。 控制开关以将电感器耦合到DC源,以将电感器充电到保持基本上恒定的预定电流水平。 每个电感器中的预定电流电平由编程源控制的开关提供给负载,使得在连续间隔期间,来自不同数量的电感器的预定恒定电流水平从电感器流向负载。 每个电感器的电感,负载阻抗和持续时间电流由电感器提供给负载使得由每个电感器提供给负载的预定电流水平保持相对恒定。