公开(公告)号：US5107240A

公开(公告)日：1992-04-21

申请号：US361770

申请日：1989-05-30

申请人： Ikuo Tashiro ,  Mituyoshi Morohoshi ,  Eriko Shimizu ,  Daisuke Ito

发明人： Ikuo Tashiro ,  Mituyoshi Morohoshi ,  Eriko Shimizu ,  Daisuke Ito

IPC分类号： H01F36/00

CPC分类号： H01F36/00 ,  Y02E40/66 ,  Y10S336/01 ,  Y10S505/88

摘要： A superconducting transformer comprises primary and secondary superconducting coils which are coaxial and made of superconducting wires, and a cryostat for maintaining the superconducting coils in a superconducting state. The cryostat includes a vessel for containing refrigerant and which is formed of a ferromagnetic material. The coils are immersed in the refrigerant. Rod formed of ferromagnetic materials is inserted in the primary and secondary superconducting coils, and is magnetically coupled with the vessel. The cryostat also includes a heat insulating tank for thermally insulating the rod and the vessel from the refrigerant. The rod and the vessel together form a closed magnetic circuit, and function as a core for the superconducting coils.

公开(公告)号：US4777437A

公开(公告)日：1988-10-11

申请号：US158033

申请日：1988-02-12

申请人： Ikuo Tashiro ,  Daisuke Ito ,  Kunio Matsukura ,  Mituyoshi Morohoshi

发明人： Ikuo Tashiro ,  Daisuke Ito ,  Kunio Matsukura ,  Mituyoshi Morohoshi

IPC分类号： H02H7/00 ,  G01R33/035

CPC分类号： H02H7/001 ,  Y02E40/68

摘要： In a monitoring system for detecting a quench in a superconductive coil to which AC power is supplied, a switch apparatus is connected between the coil and a A.C. power source. A voltage between a top of the coil and a dividing resistor connected in parallel with the coil is detected and converted into a voltage signal by a insulation amplifier and a current flowing through the coil 1 is detected by a current detector and is converted into a current signal by an amplifier. The voltage signal is detected with the current signal as a reference signal by a phase detector so that a signal component of the voltage signal in phase with the reference signal is outputted from the phase detector. The signal component is averaged in a averaging circuit, when the voltage signal is out-of-phase with the reference signal, an output signal is generated as an alarm signal from the averaging circuit.

摘要翻译： 在用于检测提供有交流电力的超导线圈中的骤冷的监视系统中，开关装置连接在线圈和交流电源之间。 线圈顶部和与线圈并联的分压电阻之间的电压被检测并通过绝缘放大器转换成电压信号，流过线圈1的电流由电流检测器检测并被转换为电流 信号由放大器。 以相位检测器的电流信号作为参考信号检测电压信号，从而从相位检测器输出与基准信号同相的电压信号的信号分量。 信号分量在平均电路中被平均，当电压信号与参考信号异相时，输出信号作为来自平均电路的报警信号产生。

公开(公告)号：US5225395A

公开(公告)日：1993-07-06

申请号：US835560

申请日：1992-02-14

申请人： Ikuo Tashiro ,  Daisuke Ito ,  Mituyoshi Morohoshi

发明人： Ikuo Tashiro ,  Daisuke Ito ,  Mituyoshi Morohoshi

IPC分类号： H02H7/00

CPC分类号： H02H7/001 ,  Y02E40/68 ,  Y10S505/851

摘要： A supervisory system is used for a superconductive transformer which comprises primary to Nth-order windings (N is an integer of not less than 2) windings, and the windings are formed of superconductive lines and are wound around an outer surface of a signal core. The supervisory system can detect quench occurring in the windings. The supervisory system includes N voltage sensors for detecting terminal voltages of the windings of the superconductive transformer, N current sensors for detecting currents of the windings, a magnetic flux detector mounted on the core of the transformer, and a discriminator for discriminating a quenched one of the windings on the basis of change patterns unique to output signals from the voltage sensors, output signals from the current sensors, and an output signal from the magnetic flux detector, and a switch for cutting off supply of an electrical power to the superconductive transformer according to an output signal from the discriminator.

摘要翻译： 超导变压器采用监控系统，该变压器包括初级至次级绕组（N为不小于2的整数）绕组，绕组由超导线形成，并缠绕在信号芯的外表面上。 监控系统可以检测绕组中发生的猝熄。 该监控系统包括用于检测超导变压器的绕组的端子电压的N个电压传感器，用于检测绕组电流的N个电流传感器，安装在变压器的磁芯上的磁通量检测器，以及鉴别器， 基于来自电压传感器输出信号，来自电流传感器的输出信号和来自磁通量检测器的输出信号所独有的变化模式的绕组和用于切断向超导变压器供电的开关，根据 到来自鉴别器的输出信号。

公开(公告)号：US4687927A

公开(公告)日：1987-08-18

申请号：US790501

申请日：1985-10-23

申请人： Katsuharu Iwamoto ,  Osamu Kawakami ,  Hideo Miyagawa ,  Ikuo Tashiro ,  Takiji Ishimura

发明人： Katsuharu Iwamoto ,  Osamu Kawakami ,  Hideo Miyagawa ,  Ikuo Tashiro ,  Takiji Ishimura

IPC分类号： G01L9/00

CPC分类号： G01L9/0077

摘要： A pressure measuring system wherein light is transmitted from a light source via a first optical fiber to a pressure-receiving diaphragm having a reflecting surface which undergoes a deflection in relation to the pressure being measured. The diaphragm reflects light transmitted thereto to a second optical fiber which transmits the reflected light to a first photosensitive element. A reference optical fiber is arranged approximately coextensive to the first and second optical fibers and transmits light from the light source in round trip fashion along substantially the same path as light transmitted by the first and second optical fibers to a second photosensitive element. The photosensitive elements produce respective electrical signals which are applied to an operational circuit which eliminates variations in the amount of light due to external disturbances by dividing one electrical signal by the other. With such a construction, it is possible to have a pressure measuring system which is unaffected by electromagnetic induction accompanying large currents and high voltages, which enables more accurate and more sensitive pressure measurements.

摘要翻译： 一种压力测量系统，其中光从光源经由第一光纤传输到具有相对于被测压力发生偏转的反射表面的受压隔膜。 光阑反射透射到第一光纤的光，其将反射光透射到第一感光元件。 参考光纤被布置成与第一和第二光纤大致共同延伸，并且以与来自第一和第二光纤的光传播的光基本上相同的路径，以往复方式将光从光源透射到第二光敏元件。 感光元件产生相应的电信号，其被施加到操作电路，通过将一个电信号彼此分开来消除由于外部干扰导致的光量的变化。 通过这样的结构，可以具有不受电流感应影响的压力测量系统，其具有大电流和高电压，这使得能够进行更精确和更灵敏的压力测量。

公开(公告)号：US5387889A

公开(公告)日：1995-02-07

申请号：US858876

申请日：1992-03-27

申请人： Hideaki Maeda ,  Takashi Yazawa ,  Ikuo Tashiro

发明人： Hideaki Maeda ,  Takashi Yazawa ,  Ikuo Tashiro

IPC分类号： B60L13/04 ,  H01F6/04 ,  H01F1/00 ,  F25B19/00 ,  B60L13/02

CPC分类号： B60L13/04 ,  H01F6/04 ,  B60L2200/26 ,  B60L2210/20 ,  Y02T10/725

摘要： A superconducting magnet apparatus such as a superconducting magnet for supplying a levitating force to a magnetically levitating train comprises a closed loop-shaped superconducting coil, a container for containing the superconducting coil, a coolant contained in the container, for keeping the superconduction state of the superconducting coil, a metallic member situated outside the container, and path apparatus situated outside the container, for suppressing heat which is generated in the container, the path apparatus having an electric conductivity higher than that of the container and being made of a superconducting wire for causing eddy current occurring outside the container to flow with a small quantity of heat generated.

摘要翻译： 用于向磁悬浮列车提供悬浮力的超导磁体等超导磁体装置包括闭环状超导线圈，容纳超导线圈的容器，容纳在容器内的冷却剂，用于保持超导体的超导体状态 超导线圈，位于容器外部的金属构件和位于容器外部的通路装置，用于抑制在容器中产生的热量，路径装置的导电率高于容器的导电性，并且由超导线制成， 导致发生在容器外面的涡流以少量的热量流动。