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    Current transformers with improved coaxial feed
    2.
    发明授权
    Current transformers with improved coaxial feed 失效
    具有改进的同轴馈电的电流互感器

    公开(公告)号：US3701003A

    公开(公告)日：1972-10-24

    申请号：US3701003D

    申请日：1970-12-14

    Applicant: GEN ELECTRIC

    Inventor： ANDERSON JOHN M

    IPC: H01F38/30 ,  G01R19/00 ,  H01F40/06

    CPC classification number: H01F38/30 ,  H01F2038/305

    Abstract: Current transformer apparatus includes a toroidal core with a secondary winding thereabout. A metallic shield and coupling member surrounds the core and has a central longitudinal opening therein for the insertion of a coaxial current carrying conductor, the current of which is to be sensed. The shield and coupling member within the longitudinal opening is laterally slotted about the cylindrical surface thereof to allow direct and close electromagnetic coupling between the coaxial conductor and the core. In one embodiment, an inner shield is provided about the core and is slotted about the exterior periphery thereof. The impedance of the coaxial conductor and the transformer may be matched by a coaxial line extending through the opening in the shield and coupling member to optimize coupling. In another embodiment, a secondary winding terminating resistance is variable by inclusion in a removable coaxial resistance cartridge. Several transformers may be cascaded in tandem by passing the output of one coaxially into the input of another.

    Abstract translation: 电流互感器装置包括一个具有次级绕组的环形磁芯。 金属屏蔽和耦合构件围绕芯并且在其中具有中心纵向开口，用于插入同轴载流导体，其电流将被感测。 纵向开口内的屏蔽和耦合构件围绕其圆柱形表面横向开槽，以允许在同轴导体和芯之间的直接和闭合的电磁耦合。 在一个实施例中，围绕芯部提供内屏蔽，并围绕其外周边开槽。 同轴导体和变压器的阻抗可以通过延伸穿过屏蔽和耦合构件中的开口的同轴线匹配，以优化耦合。 在另一个实施例中，次级绕组终端电阻可通过包含在可移除的同轴电阻盒中而变化。 通过将一个同轴的输出传递到另一个的输入端，可以串联级联几个变压器。

    Cathode structure for high current, low pressure discharge devices
    5.
    发明授权
    Cathode structure for high current, low pressure discharge devices 失效
    大电流，低压放电装置的阴极结构

    公开(公告)号：US3883764A

    公开(公告)日：1975-05-13

    申请号：US44801874

    申请日：1974-03-04

    Applicant: GEN ELECTRIC

    Inventor： JOHNSON PETER D ,  ANDERSON JOHN M

    IPC: H01J61/10 ,  H01J61/067 ,  H01J61/08

    CPC classification number: H01J61/0672

    Abstract: An improved cathode structure for high current, low pressure electric discharge devices is described as comprising an oxide emissive mix coated filament mounted axially within a hollow open-ended refractory metal cylinder. Unusually high discharge currents on the order of 2 to 50 amperes are provided with this electrode structure for long periods of time.

    Abstract translation: 描述了用于大电流，低压放电装置的改进的阴极结构，其包括轴向安装在中空的开口端难熔金属圆筒内的氧化物发射混合涂覆的细丝。 这种电极结构长时间提供2到50安培数量级的非常高的放电电流。

    High-performance current transformers
    6.
    发明授权
    High-performance current transformers 失效
    高性能电流互感器

    公开(公告)号：US3629693A

    公开(公告)日：1971-12-21

    申请号：US3629693D

    申请日：1970-12-14

    Applicant: GEN ELECTRIC

    Inventor： ANDERSON JOHN M

    IPC: H01F38/30 ,  G01R19/00 ,  H01F40/06

    CPC classification number: H01F38/30

    Abstract: Current transformers which exhibit a uniform response and freedom from distortion as a function of frequency of currents sensed include a secondary winding having a number of turns about a suitable core. Oscillation-damping resistances are connected between electrically uniformly spaced points along the secondary winding and a common low-inductance conductor.

    Metal vapor arc microwave switch
    7.
    发明授权
    Metal vapor arc microwave switch 失效
    金属蒸气微波开关

    公开(公告)号：US3611008A

    公开(公告)日：1971-10-05

    申请号：US3611008D

    申请日：1970-03-27

    Applicant: GEN ELECTRIC

    Inventor： ANDERSON JOHN M

    IPC: G01S7/03 ,  H01P1/14 ,  H01J7/46

    CPC classification number: G01S7/034 ,  H01P1/14

    Abstract: An improved microwave switch is disclosed wherein an arc is struck between metallic electrodes creating a metal vapor or plasma therebetween. This plasma, in one embodiment, is allowed to diffuse into the waveguide, thereby opening the switch and shortcircuiting the waveguide. A septum within the waveguide is used to deflect the plasma from the windows at either side of the switch, thereby preventing a metallic layer from building up on the windows which would induce reflection within the waveguide.

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