Passive eddy current nutation damper
    1.
    发明授权
    Passive eddy current nutation damper 失效
    被动EDDY电流保护器

    公开(公告)号:US3806062A

    公开(公告)日:1974-04-23

    申请号:US3302870

    申请日:1970-04-29

    CPC classification number: B64G1/38 B64G1/281 B64G1/32 Y10T74/1257

    Abstract: Nutation in a spin stabilized device is damped through the energy absorbing medium of eddy current dissipation as a permanent magnet moves with respect to a non-magnetic conductive plate. Because the nutational frequencies of the device can be determined, the damping effected by movement of the permanent magnet may be made more effective by tuning the damper to the nutational frequencies by use of a spring mechanism acting on the magnet. Nutations of the device will be damped so long as the effective damper mass of the magnet is located away from the center of gravity or center of mass of the total vehicle.

    Abstract translation: 当永磁体相对于非磁性导电板移动时,自旋稳定装置中的营养通过涡流耗散的能量吸收介质被阻尼。 由于可以确定装置的功能频率,所以通过使用作用在磁体上的弹簧机构将阻尼器调节到制动频率,可以使得通过永磁体运动实现的阻尼更有效。 只要磁体的有效阻尼器质量位于离车辆整体重心或重心的位置,装置的营养就会被阻尼。

    Baffle for perforated electrode in a crossed-field switch device
    2.
    发明授权
    Baffle for perforated electrode in a crossed-field switch device 失效
    用于交叉场切换装置中的执行电极的焊盘

    公开(公告)号:US3769537A

    公开(公告)日:1973-10-30

    申请号:US3769537D

    申请日:1972-09-14

    Inventor: HOFMANN G

    CPC classification number: H01J31/02 H01J17/14

    Abstract: In the nonconducting state, breakdown between concentric electrodes is determined by the Paschen law. If the inner electrode which defines the interelectrode space is perforated, ionization can occur therein, thus reducing holdoff voltage at a given pressure. Path length-limiting shielding adjacent to the electrode perforations prevents ionization within the electrode to maintain holdoff voltage, corresponding to the original electrode spacing.

    Abstract translation: 在非导体状态下,同心电极之间的击穿由帕邢定律确定。 如果限定电极间空间的内电极被穿孔,则可能发生电离,从而在给定压力下降低释放电压。 与电极穿孔相邻的路径长度限制屏蔽防止电极内的电离保持对应于原始电极间距的缓解电压。

    Method and apparatus for ignition of crossed field switching device for use in a hvdc circuit breaker
    3.
    发明授权
    Method and apparatus for ignition of crossed field switching device for use in a hvdc circuit breaker 失效
    用于高压直流电路断路器中使用的交叉场切换装置点火的方法和装置

    公开(公告)号:US3714510A

    公开(公告)日:1973-01-30

    申请号:US3714510D

    申请日:1971-03-09

    Inventor: HOFMANN G

    CPC classification number: H01J17/14 Y10T307/924

    Abstract: Ignition method and apparatus for crossed-field switching device for onswitching the device when a high voltage is applied thereacross, comprising applying a plasma puff between the electrodes to initiate arc discharge therebetween, followed by resonantly reducing the current to zero to extinguish the arc and permit initiation of glow mode discharge after the current zero.

    Abstract translation: 一种交叉场开关装置的点火方法和装置,用于当高电压施加于其上时对该装置进行开关的开关装置,包括在电极之间施加等离子体抽吸以在其间引发电弧放电,然后将电流谐振地减小到零以熄灭电弧并允许 在电流零点后启动发光模式放电。

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