Abstract:
Examples disclosed herein relate to dual in-line memory module (DIMM) battery backup. Some examples disclosed herein describe systems that include a backup power source pluggable into a DIMM slot. The backup power source may include a plurality of battery cells electrically connected to a DIMM to provide backup power to the DIMM. Each of the plurality of battery cells supporting the DIMM may be electrically connected to a DC-to-DC converter in series and to each other in parallel.
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:
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:
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.
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.
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.
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.