Balancing of a rotating anode
    32.
    发明授权
    Balancing of a rotating anode 有权
    平衡旋转阳极

    公开(公告)号:US09368317B2

    公开(公告)日:2016-06-14

    申请号:US14362308

    申请日:2012-11-28

    Abstract: A rotating anode disk is balanced in a state where the rotating anode disk is mounted inside an X-ray tube. An adjustment device (54) balances the rotating anode disk in an operating state. The adjustment device includes at least a first plurality (72) of balancing elements (74) which are attached to at least one circular ring structure (76). The balancing elements each include a balancing portion (80) mounted to the circular ring structure via a bending portion (82). The bending portions are configured to be heated to a bending temperature to allow a radial pivoting movement (84) of the balancing portion from a first state (86) into a second state (88) caused by centrifugal forces upon rotation. A center of mass of the balancing portion is closer to a center (90) of the circular ring structure in a first state than the second state.

    Abstract translation: 旋转阳极盘在旋转阳极盘安装在X射线管内部的状态下平衡。 调节装置(54)在工作状态下平衡旋转的阳极盘。 调节装置包括至少一个第一多个(72)的平衡元件(74),其连接到至少一个圆环结构(76)。 平衡元件各自包括经由弯曲部分(82)安装到圆环结构的平衡部分(80)。 弯曲部分被构造成被加热到弯曲温度,以允许平衡部分的径向枢转运动(84)从旋转时由离心力引起的第一状态(86)转变成第二状态(88)。 平衡部分的质心比第二状态更靠近圆形环结构的中心(90)。

    Projection television display tube
    33.
    发明授权
    Projection television display tube 失效
    投影电视显示管

    公开(公告)号:US4651047A

    公开(公告)日:1987-03-17

    申请号:US738107

    申请日:1985-05-24

    CPC classification number: H01J29/861 H01J29/006

    Abstract: A projection television display tube having an evacuated envelope (1) with a display window (4) which has a display screen (5) on its inside and in front of which a light-permeable second window (6) is provided on the outside, a cooling liquid flowing through the space (7) between the display window (4) and the second window (6) from at least one inlet aperture to at least one outlet aperture. When in such a projection television display tube a cooling jacket(8) is provided at the area of the windows (4, 6) and around the said space (7) and is provided with at least one duct (9) and one pump (16) with connecting nipples (17,18) which transport the cooling liquid from the outlet aperture to the inlet aperture or apertures of the said space (7), an effective cooling is obtained with a power up to 40 W without outer pipes and without heat exchangers. By the forced circulation of the cooling liquid a good temperature compensation is obtained so that fewer stresses occur in the glass of the display window.

    Abstract translation: 一种投影电视显示管,其具有带有显示窗(4)的抽真空的外壳(1),所述显示窗(4)在其内部具有显示屏(5),其前面设有透光的第二窗(6) 冷却液体从至少一个入口孔流过显示窗(4)和第二窗(6)之间的空间(7)至至少一个出口孔。 当在这种投影电视显示管中,在窗(4,6)的区域和围绕所述空间(7)设置冷却套(8)并且设置有至少一个管道(9)和一个泵 16),其具有将冷却液从出口孔输送到所述空间(7)的入口孔或孔的连接接头(17,18),在没有外管并且没有 热交换器。 通过冷却液的强制循环,获得良好的温度补偿,使得在显示窗的玻璃中产生较少的应力。

    Electrical switch device having a fed liquid-metal cathode and a non-intercepting anode

    公开(公告)号:US3668453A

    公开(公告)日:1972-06-06

    申请号:US3668453D

    申请日:1970-07-01

    CPC classification number: H01J13/04 H01J2893/0089

    Abstract: The electrical switch device has an envelope in which is mounted a liquid-metal cathode, an anode, and a condenser. The cathode is capable of very high electron-to-atom emission ratio. A desirable value for the electron-to-atom emission ratio is on the order of 100 or more and is attainable by means of a cathode such as disclosed in U.S. Pat. No. 3,475,636, when used in the switch device. The condenser has a very much larger area than the exposed liquid metal area on the cathode, and it is kept at a low enough temperature to efficiently condense the liquid-metal vapor emitted by the cathode. With mercury used as the liquid metal, the condenser temperature is kept substantially below 0* C., preferably at about -35* C. which is just above the melting point of mercury. When arcing occurs from the liquid metal, a plasma jet of electrons, ions, and neutral particles is emitted from the arc spot. The anode is mounted between the cathode and the condenser, and it is positioned at the edge of the plasma jet to capture the major portion of the electron flow for electrical conduction. Most of the ions and neutral particles as well as a sufficient number of electrons to preserve space-charge and current neutrality, pass the anode in the plasma jet and are captured on the condenser. The combination of the high electronto-atom emission ratio of the cathode with the large, lowtemperature condenser results in an equilibrium background pressure (i.e., pressure outside the plasma jet) of at least as low as 10 3 Torr during arcing, and lower than 10 4 Torr during non-arcing periods. These low pressures are obtained by maintaining the condenser in the range of low temperatures defined above. This low background pressure, in turn, permits the essentially unperturbed propagation of the plasma jet between the cathode and the surfaces upon which it impinges, i.e., condenser and anode. Such a discharge mode is commonly referred to as a ''''vacuum arc.'''' The fact that the plasma jet is emitted only during arcing, and that the pressure within the space surrounding this jet is kept low, results in the ability to hold off electric fields up to 50 kV per centimeter between anode and cathode immediately after cessation of arcing.

    Electrical switch device having a fed liquid-metal cathode and partially intercepting anode

    公开(公告)号:US3662205A

    公开(公告)日:1972-05-09

    申请号:US3662205D

    申请日:1970-07-02

    Inventor: LIAN KENNETH T

    CPC classification number: H01J13/04 H01J2893/0089

    Abstract: The electrical switch device has an envelope in which is mounted a liquid-metal cathode, an anode, and a condenser. The cathode is capable of very high electron-to-atom emission ratio. A desirable value for the electron-to-atom emission ratio is on the order of 100 or more and is attainable by means of a cathode such as disclosed in U.S. Pat. No. 3,475,636. The condenser has a very much larger area than the exposed liquid metal area on the cathode, and it is kept at a low enough temperature to efficiently condense the liquid-metal vapor emitted by the cathode. With mercury used as the liquid metal, the condenser temperature is kept substantially below 0* C., preferably at about -35* C. which is just above the melting point of mercury. When arcing occurs from the liquid metal, a plasma jet of electrons, ions, and neutral particles is emitted from the arc spot. The anode is mounted between the cathode and the condenser, and it partially intercepts the plasma jet. The combination of the high electron-to-atom emission ratio of the cathode with the large, low-temperature condenser results in an equilibrium background pressure (i.e., pressure outside the plasma jet) of at least as low as 10 3 Torr during arcing, and lower than 10 4 Torr during non-arcing periods. These low pressures are obtained by maintaining the condenser in the range of low temperatures defined above. This low background pressure, in turn, permits the essentially unperturbed propagation of the plasma jet between the cathode and the surfaces upon which it impinges, i.e., condenser and anode. Such a discharge mode is commonly referred to as a ''''vacuum arc.'''' The fact that the plasma jet is emitted only during arcing, and that the pressure within the space surrounding this jet is kept low, results in the ability to hold off electric fields up to 50 kV per centimeter between anode and cathode immediately after cessation of arcing.

    ELECTRON EMISSION APPARATUS AND ELECTRONIC APPARATUS

    公开(公告)号:EP4481789A1

    公开(公告)日:2024-12-25

    申请号:EP22926797.6

    申请日:2022-11-09

    Inventor: LI, Xijun

    Abstract: Provided in the embodiments of the present disclosure are an electron emission apparatus and an electronic apparatus. The electron emission apparatus comprises a fire-resistant container and a heating power supply, the fire-resistant container being provided with a cavity part, the cavity part having a certain degree of vacuum, an electron emission material being arranged in the cavity part, at least one through hole being formed in the bottom of the fire-resistant container, and after being melted by heating, the electron emission material passing through the through hole so as to have an arc-shaped outwards-convex liquid surface and to emit electrons outwards. The embodiments of the present disclosure have a relatively good electron field emission effect and a high degree of product structure consistency, and achieve easy commissioning. The service life of the electron emission apparatus is in direct proportion to the mass of the accommodated electron emission material, so that the service life of the disclosed electronic apparatus can be remarkably prolonged compared with that of a traditional thermal field emission or cold field emission filament, thereby meeting the use requirements of an electron beam exposure machine, a scanning electron microscope, a transmission electron microscope and other X-ray sources.

    Verfahren und Vorrichtung zur spannungsrichtigen elektrischen Verbindung von verschiedenen Spannungsebenen, insbesondere bei der Fremdversorgung in Bordnetzen von Kraftfahrzeugen
    38.
    发明公开
    Verfahren und Vorrichtung zur spannungsrichtigen elektrischen Verbindung von verschiedenen Spannungsebenen, insbesondere bei der Fremdversorgung in Bordnetzen von Kraftfahrzeugen 有权
    用于不同电压电平的电压适当的电连接,特别是在机动车辆中的电气系统与外部电源的方法和装置

    公开(公告)号:EP1454798A3

    公开(公告)日:2005-08-17

    申请号:EP04004913.2

    申请日:2004-03-03

    CPC classification number: H02J7/0036 B60R16/03 H02J2001/008

    Abstract: Die Erfindung betrifft eine Vorrichtung zur elektrischen Verbindung einer Gleichspannungsquelle (1) oder -senke mit mindestens einem Verbrauchernetz (2, 3) einer jeweils vorgegebenen Spannungsebene (14V, 42V), enthaltend einen Eingangszweipol (4), der mit der Gleichspannungsquelle (1) oder -senke verbunden ist, mindestens einen Ausgangszweipol(5a, 5b), welcher jeweils mit dem ihm zugeordneten Verbrauchernetz (2, 3) verbunden ist, und von einer Überwachungseinrichtung (7) gesteuerte Verbindungsmittel (6) zur Verbindung von Eingangs- und Ausgangszweipol, wobei die Überwachungseinrichtung (7) Vergleichsmittel (8) zum Vergleich des am Eingangszweipol (4) anliegenden Spannungsistwertes mit mindestens einem Spannungssollwert (Ugs) derart aufweist, dass nur bei einer innerhalb eines vorgebbaren Toleranzbereichs liegenden Übereinstimmung von Spannungsistwert und Spannungssollwert der Eingangszweipol (4) und der zugehörige Ausgangszweipol (5a, 5b) miteinander verbunden sind. Gegenüber bisherigen Vorrichtungen und Verfahren ist die Betriebssicherheit gegen spannungsunrichtigen Anschluss von Gleichspannungsquelle bzw. Gleichspannungssenke verbessert.

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