HIGH FREQUENCY CATHODE HEATER SUPPLY FOR A MICROWAVE SOURCE
    44.
    发明公开
    HIGH FREQUENCY CATHODE HEATER SUPPLY FOR A MICROWAVE SOURCE 有权
    高频阴极加热器电源用于微波源

    公开(公告)号:EP2499650A1

    公开(公告)日:2012-09-19

    申请号:EP10776409.4

    申请日:2010-11-11

    摘要: A high frequency cathode heater supply for a microwave source includes a SMPS inverter (13) and an isolation transformer (12) having a primary winding (122) arranged to be powered by the SMPS inverter, a monitor winding (123) passing through primary core assemblies of the primary winding and a secondary winding (121) arranged for connection to the cathode heater (11). A current monitor (141) is arranged to monitor a current in the primary windings. Signal processing modules (14, 131, 132) are arranged to receive a first input signal from the monitor winding (123) indicative of a voltage Vh across the cathode heater (11) and a second input signal from the current monitor (141) indicative of a current through the cathode heater. The signal processing modules are arranged to output a control signal to the SMPS inverter to control power supplied to the cathode heater dependent on a monitored resistance of,or monitored power supplied to, the cathode heater as determined from the first input signal and the second input signal.

    Röhre, insbesondere Elektronenröhre
    45.
    发明公开
    Röhre, insbesondere Elektronenröhre 审中-公开
    Röhre,insbesondereElektronenröhre

    公开(公告)号:EP2073242A2

    公开(公告)日:2009-06-24

    申请号:EP08169844.1

    申请日:2008-11-25

    发明人: Heuermann, Oliver

    IPC分类号: H01J1/13 H01J23/00 H01J23/34

    CPC分类号: H01J1/135 H01J23/00 H01J23/34

    摘要: Die Erfindung betrifft eine verbesserte Röhre (100), insbesondere eine Elektronenröhre, und ein verbessertes System zur Ansteuerung der Elektroden und/oder der Heizung einer Röhre sowie zur Bestimmung der Lebensdauer einer Röhre. Eine erfindungsgemäße Röhre (100) weist einen evakuierten oder gasgefüllten Bereich (110) auf, in welchem eine oder mehrere Elektroden (140, 190) sowie Mittel (150) zur Messung der Temperatur einer der Elektroden (140, 190) angeordnet sind. Der Vorteil der vorliegenden Erfindung ist darin zu sehen, daß mit verhältnismäßig geringem Aufwand eine präzise Ermittlung der Elektrodentemperatur einer Röhre (100) erfolgen kann. Dadurch kann zum einen die Lebensdauer der Röhre genauer vorhergesagt werden. Andererseits ist es durch Überwachen der Elektrodentemperatur und entsprechendes Ansteuern der Elektroden und/oder der Elektrodenheizung möglich, die Elektrodentemperatur exakt auf einem gewünschten Wert (Sollwert) zu halten.

    摘要翻译: 管例如 具有抽空或气体填充区域(110),其中布置了用于测量其中一个电极的温度的一组电极(140,190)和传感器装置(150)。 传感器装置具有高温测量传感器(160),其中高温测量传感器或高温传感器上游的光学元件由闭合件(170)保护,封闭件可以电子或机电方式封闭或打开。 由绝缘耐热材料制成的外壳(120),例如 玻璃,包围抽真空区域。 对于包含管的系统也包括独立权利要求。

    Stabilized emitter and method for stabilizing same
    46.
    发明公开
    Stabilized emitter and method for stabilizing same 审中-公开
    稳定发射器和方法,

    公开(公告)号:EP1705684A1

    公开(公告)日:2006-09-27

    申请号:EP05006277.7

    申请日:2005-03-22

    摘要: An emitter for a charged particle beam apparatus is provided, said emitter comprising a filament (3) extending between and being attached to first and second supports (2), an emitter tip (4) attached to the filament (3), and a stabilization element (6) attached to a third support (5) and to the filament (3), wherein the first, second and third supports (2, 5) define a triangle so that the stabilization element (6) extends at least partially in a direction perpendicular to the direction in which the filament (3) extends.

    摘要翻译: 提供了一种用于带电粒子束装置的发射器,所述发射器包括在第一和第二支撑件(2)之间延伸并附接到第一和第二支撑件(2)上的细丝(3),附接到灯丝(3)的发射极尖端(4) 附接到第三支撑件(5)和灯丝(3)的元件(6),其中所述第一,第二和第三支撑件(2,5)限定三角形,使得所述稳定元件(6)至少部分地延伸到 垂直于灯丝(3)延伸的方向的方向。

    A directly heated cathode assembly
    47.
    发明公开
    A directly heated cathode assembly 失效
    Direkt geheizte Kathodenvorrichtung。

    公开(公告)号:EP0448133A2

    公开(公告)日:1991-09-25

    申请号:EP91108614.8

    申请日:1986-08-21

    IPC分类号: H01J1/16 H01J23/04 H01J1/13

    CPC分类号: H01J1/135 H01J1/13 H01J23/04

    摘要: A directly heated cathode assembly comprises a cathode button 100 having a concave surface, two electrodes 120, 170 positioned on said cathode button such that the application of a voltage between them causes current to flow through the body of the cathode button thereby causing heat to be produced within the body of the cathode button. The current flow is evenly distributed between the electrodes by an arrangement incorporated within the cathode button illustrated as a maze of insulating pieces 220. This maze causes the current to travel in a path substantially greater in length than the distance between the electrodes.

    摘要翻译: 直接加热的阴极组件包括具有凹面的阴极按钮100,位于所述阴极按钮上的两个电极120,170,使得在它们之间施加电压使电流流过阴极按钮的主体,从而使热量为 在阴极按钮的主体内产生。 电流通过结合在阴极按钮内的布置均匀地分布在电极之间,该阴极按钮被示为绝缘片220的迷宫。该迷宫导致电流在比电极之间的距离大得多的路径中行进。

    Canon à électrons et tube électronique comportant un tel canon à électrons
    48.
    发明公开
    Canon à électrons et tube électronique comportant un tel canon à électrons 失效
    的阴极的电子发射和电子管,其包括这样的阴极。

    公开(公告)号:EP0350358A1

    公开(公告)日:1990-01-10

    申请号:EP89401741.7

    申请日:1989-06-20

    申请人: THOMSON-CSF

    IPC分类号: H01J1/13 H01J23/04

    CPC分类号: H01J1/13 H01J23/04

    摘要: Cette cathode comprend un corps (1) en matière non émissive d'électrons ayant une face non émissive (1A) substan­tiellement lisse et des éléments en matière émissive (3) ayant chacun une face émissive (9), espacés les uns des autres et fixés au corps (1), par exemple dans des évidements (2) avec leur surface émissive (9) en relief d'une valeur déterminée (3S) par rapport à ladite face non émissive (1A), afin qu'une électrode de protection puisse être placée entre les parties saillantes de ces éléments (3).

    Electron tube device and electron tube
    49.
    发明公开
    Electron tube device and electron tube 失效
    ElektronenröhrenanordnungundElektronenröhre。

    公开(公告)号:EP0339714A1

    公开(公告)日:1989-11-02

    申请号:EP89200953.1

    申请日:1989-04-14

    IPC分类号: H01J1/13

    CPC分类号: H01J1/135

    摘要: An electron tube device comprising an electron tube having a line cathode, and an electric power source for supplying power pulses to the line cathode, characterized in that the electron tube device comprises determination means for determining, during a power pulse, the value of a physical quantity which depends on the temperature of the line cathode, comparison means for comparing the value with a reference value and for supplying a control signal, and termination means to end the power pulse in dependence on the control signal. Consequently, the temperature of the line cathode is more stable.

    摘要翻译: 一种电子管装置,包括具有线阴极的电子管和用于向线阴极提供功率脉冲的电源,其特征在于,所述电子管装置包括确定装置,用于在功率脉冲期间确定物理 取决于线阴极的温度的量,用于将该值与参考值进行比较并用于提供控制信号的比较装置,以及根据控制信号结束功率脉冲的终端装置。 因此,线阴极的温度更稳定。

    Method and apparatus for quickly heating a vacuum tube cathode
    50.
    发明公开
    Method and apparatus for quickly heating a vacuum tube cathode 失效
    用于快速加热真空管阴极的方法和装置

    公开(公告)号:EP0214798A3

    公开(公告)日:1989-03-22

    申请号:EP86306503.3

    申请日:1986-08-21

    IPC分类号: H01J1/13

    CPC分类号: H01J1/135 H01J1/13 H01J23/04

    摘要: Disclosed are a method and apparatus for rapidly heating a thermionic vacuum tube cathode, thereby enabling the vacuum tube to be placed in useful operation shortly after the tube is switched on. Rapid heating of the cathode is achieved by passing current through the cathode, thereby directly heating it. Simultaneously, the cathode is also heated by an indirect radiant heater and by electron bombardment by electrons emitted from the heater. When the cathode reaches its operating temperature, the direct heating current and the electron bombardment are stopped and the cathode is maintained at its operating temperature by the indirect heater alone. Cathode warm-up times of less than 1 second may be attained using this invention.