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481 条记录 (耗时 0.014 秒)

    Storage cell type X-ray apparatus
    81.
    发明授权
    Storage cell type X-ray apparatus 失效
    存储单元型X射线装置

    公开(公告)号：US4200796A

    公开(公告)日：1980-04-29

    申请号：US915773

    申请日：1978-06-15

    申请人： Fumio Murakami ,  Takeshi Enya ,  Yoshinori Ochiai

    发明人： Fumio Murakami ,  Takeshi Enya ,  Yoshinori Ochiai

    IPC分类号： G05F1/14 ,  H05G1/32 ,  H05G1/54 ,  H05G1/66 ,  H05G1/30

    CPC分类号： H05G1/32 ,  G05F1/14 ,  H05G1/54 ,  H05G1/66

    摘要： A storage cell type X-ray apparatus uses a storage cell as its power source and operates so that the dc voltage of the power source is converted to an ac voltage, this ac voltage is elevated to a higher voltage and rectified to obtain a high dc voltage. The resulting voltage is applied to an X-ray tube, to cause this X-ray tube to emit X-rays. This apparatus includes means for stabilizing the voltage applied to the X-ray tube.

    摘要翻译： 存储单元型X射线装置使用存储单元作为其电源并进行动作，使得电源的直流电压转换为交流电压，将该交流电压提高到更高的电压并整流以获得高直流 电压。 将所得到的电压施加到X射线管，使该X射线管发射X射线。 该装置包括用于稳定施加到X射线管的电压的装置。

    X-ray apparatus for a computed tomography scanner
    82.
    发明授权
    X-ray apparatus for a computed tomography scanner 失效
    用于计算机断层扫描仪的X射线装置

    公开(公告)号：US4181857A

    公开(公告)日：1980-01-01

    申请号：US838369

    申请日：1977-09-30

    申请人： Katsuhiko Miyoshi

    发明人： Katsuhiko Miyoshi

    IPC分类号： G01N23/04 ,  A61B6/03 ,  H05G1/24 ,  H05G1/32 ,  H05G1/30

    CPC分类号： H05G1/32 ,  H05G1/24

    摘要： An X-ray apparatus for a computed tomography scanner comprises a capacitor device formed of a plurality of capacitors which have the same capacitance and are successively connected to a first changeover switch between the filament and anode of an X-ray tube. There are connected in series between the anode of the X-ray tube and the first changeover switch a high voltage switch for intermittently applying a high voltage across the anode and filament of the X-ray tube and a wave tail cut circuit whose contact is opened when a drop takes place in the voltage of the capacitor connected to the first changeover switch. The capacitor device is connected to the secondary winding of a high voltage transformer through a second changeover switch and a diode connected to the plural capacitor in turn. Between the second changeover switch and the secondary winding of the high voltage transformer are connected a rectifier and the contact of a charge-interrupting circuit which is opened when a rise occurs in the voltage of the capacitor connected to the second changeover switch. The plural capacitors of the capacitor device are successively charged with high voltage of a prescribed level. The high voltage of the prescribed level with which the plural capacitors of the capacitor device are charged is successively applied at a short interval across the filament and anode of the X-ray tube, which emits the prescribed amount of X-radiation succession of short burst.

    摘要翻译： 用于计算机断层摄影扫描器的X射线装置包括由具有相同电容的多个电容器形成的电容器装置，并且连续地连接到X射线管的灯丝和阳极之间的第一转换开关。 在X射线管的阳极和第一转换开关之间串联连接有用于间歇地施加高电压的X射线管的阳极和灯丝的高压开关和接触开路的波尾截止电路 当连接到第一转换开关的电容器的电压发生下降时。 电容器装置通过第二转换开关连接到高压变压器的次级绕组，并依次连接到多个电容器。 在第二转换开关和高压变压器的次级绕组之间连接有整流器和当连接到第二转换开关的电容器的电压发生上升时断开的充电中断电路的触点。 电容器装置的多个电容器依次充电规定电平的高电压。 电容器装置的多个电容器被充电的规定电平的高电压在X射线管的灯丝和阳极之间以短的间隔连续施加，其发射规定量的X射线连续的短脉冲串 。

    X-ray diagnosis generator comprising an inverter feeding the high voltage transformer
    83.
    发明授权
    X-ray diagnosis generator comprising an inverter feeding the high voltage transformer 失效
    X射线诊断发生器包括供给高压变压器的逆变器

    公开(公告)号：US4171488A

    公开(公告)日：1979-10-16

    申请号：US915367

    申请日：1978-06-14

    申请人： Werner Kuehnel

    发明人： Werner Kuehnel

    IPC分类号： H05G1/12 ,  H05G1/32

    CPC分类号： H05G1/32 ,  H05G1/12

    摘要： In the illustrative embodiment, the feeding of the high voltage transformer proceeds from an inverter which is connected to a dc voltage source. The inverter output frequency is adjusted in dependence upon the selected x-ray tube voltage such that as the x-ray tube voltage is reduced, the inverter frequency is correspondingly reduced.

    摘要翻译： 在说明性实施例中，高压变压器的馈电从连接到直流电压源的逆变器进行。 逆变器输出频率根据所选择的X射线管电压进行调节，使得随着X射线管电压的降低，逆变器频率相应减小。

    X-ray diagnostic apparatus including means for regulating the X-ray tube voltage through the X-ray tube current
    84.
    发明授权
    X-ray diagnostic apparatus including means for regulating the X-ray tube voltage through the X-ray tube current 失效
    X射线诊断装置包括用于通过X射线管电流调节X射线管电压的装置

    公开(公告)号：US3974387A

    公开(公告)日：1976-08-10

    申请号：US569088

    申请日：1975-04-17

    申请人： Karlheinz Bronner ,  Ulrich Grassme ,  Eickhardt Soder

    发明人： Karlheinz Bronner ,  Ulrich Grassme ,  Eickhardt Soder

    IPC分类号： H05G1/32 ,  H05G1/34

    CPC分类号： H05G1/32 ,  H05G1/34

    摘要： An X-ray diagnostic apparatus in which the X-ray tube voltage is regulated through intermediary of the X-ray tube current. In the apparatus, a regulator is situated within a regulating circuit for the effective value of the filament current of the X-ray tube, and influences the effective value of the filament current for the purpose of correlating the actual value with the reference value which has been determined through the preset X-ray tube voltage. In the inventive X-ray diagnostic apparatus, on the one hand, the actual value of the X-ray tube voltage is compared with a reference value, and the filament current is influenced for the purpose of correlating the actual value to the reference value. Furthermore, the filament current which is required for a predetermined reference value of the X-ray tube voltage is also maintained constant preceding the beginning of an exposure so that, at the initiation of an exposure, the filament current already lies at least near to the correct value. Deviations of the X-ray tube voltage from the correct value are thereby smaller than in prior art apparatus.

    摘要翻译： 一种X射线诊断装置，其中X射线管电压通过X射线管电流的中介进行调节。 在该装置中，调节器位于用于X射线管的灯丝电流的有效值的调节电路内，并且影响灯丝电流的有效值，以将实际值与具有 通过预设的X射线管电压来确定。 在本发明的X射线诊断装置中，一方面将X射线管电压的实际值与参考值进行比较，并且为了将实际值与参考值相关联，影响灯丝电流。 此外，X射线管电压的预定参考值所需的灯丝电流在曝光开始之前也保持恒定，使得在曝光开始时，灯丝电流已经至少接近于 正确的价值。 因此，X射线管电压与正确值的偏差比现有技术的装置小。