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6 条记录 (耗时 0.014 秒)

    High-sensitive magnetometer
    2.
    发明公开
    High-sensitive magnetometer 失效
    高灵敏磁力计

    公开(公告)号：EP0446923A3

    公开(公告)日：1992-11-19

    申请号：EP91103947.7

    申请日：1991-03-14

    申请人： Research Development Corporation of Japan ,  HITACHI, LTD.

    发明人： Nakane, Hideaki ,  Cubillos, Juan Casas ,  Goto, Eiichi

    IPC分类号： G01R33/035

    CPC分类号： G01R33/0358 ,  Y10S505/846

    摘要： A high-sensitive magnetometer has two SQUIDs each comprising a superconducting loop with one or more Josephson junctions and also has a coil comprising a continuous loop for providing magnetic flux of input signals to each of the SQUIDs in opposite directions. The magnetic flux of the input signals is detected by sums of output voltages of the SQUIDs. Magnetic flux noises equally applied on the two SQUID are cancelled by the continuous loop and at addition of the output voltages of the SQUIDs, thus large output signals can be obtained because sums of the two SQUID output signals are obtained.

    High-sensitive magnetometer
    3.
    发明公开
    High-sensitive magnetometer 失效
    Hochempfindliches磁力计。

    公开(公告)号：EP0446923A2

    公开(公告)日：1991-09-18

    申请号：EP91103947.7

    申请日：1991-03-14

    申请人： Research Development Corporation of Japan ,  HITACHI, LTD.

    发明人： Nakane, Hideaki ,  Cubillos, Juan Casas ,  Goto, Eiichi

    IPC分类号： G01R33/035

    CPC分类号： G01R33/0358 ,  Y10S505/846

    摘要： A high-sensitive magnetometer has two SQUIDs each comprising a superconducting loop with one or more Josephson junctions and also has a coil comprising a continuous loop for providing magnetic flux of input signals to each of the SQUIDs in opposite directions. The magnetic flux of the input signals is detected by sums of output voltages of the SQUIDs. Magnetic flux noises equally applied on the two SQUID are cancelled by the continuous loop and at addition of the output voltages of the SQUIDs, thus large output signals can be obtained because sums of the two SQUID output signals are obtained.

    摘要翻译： 高灵敏度磁力计具有两个SQUID，每个SQUID包括具有一个或多个约瑟夫逊结的超导回路，并且还具有包括连续回路的线圈，用于向相反方向的每个SQUID提供输入信号的磁通量。 通过SQUID的输出电压的和来检测输入信号的磁通量。 在两个SQUID上均等地施加的磁通量噪声被连续回路消除，并且加上SQUID的输出电压，因此可以获得大的输出信号，因为得到两个SQUID输出信号的和。

    Superconducting current detecting circuit employing DC flux parametron circuit
    5.
    发明公开
    Superconducting current detecting circuit employing DC flux parametron circuit 失效
    SupraleitendeStromfühlerschaltung。

    公开(公告)号：EP0205120A2

    公开(公告)日：1986-12-17

    申请号：EP86107693.3

    申请日：1986-06-05

    申请人： HITACHI, LTD. ,  RIKAGAKU KENKYUSHO

    发明人： Harada, Yutaka ,  Goto, Eiichi ,  Kawabe, Ushio ,  Miyamoto, Nobuo ,  Nakane, Hideaki ,  Hatano, Mutsuko

    IPC分类号： G01R19/15 ,  G01R19/00 ,  G01R17/06 ,  G01R33/035

    CPC分类号： G01R19/257 ,  G01R17/06 ,  G01R19/0092 ,  G01R19/15 ,  Y10S505/827 ,  Y10S505/845

    摘要： Disclosed is a superconducting current detecting circuit which comprises a reference current generation circuit (102) for generating a reference current and a DC flux parametron circuit (101a) for comparing an input current to be detected with the reference current to thereby produce pulses in synchronism with an input excitation signal, the number of the pulses being varied in accordance with a difference between the input current and the reference current, the pulses having positive or negative values depending on the polarity of the difference, the reference current generation circuit having means for increasing or decreasing the reference current by a quantity corresponding to the number of the pulses in response to the polarity of the pulses so that reference current generation circuit produces the reference current which is agreed with the input current.

    摘要翻译： 公开了一种超导电流检测电路，其包括用于产生参考电流的参考电流产生电路（102）和用于将待检测的输入电流与参考电流进行比较的DC通量参数电路（101a），从而产生与 输入激励信号，脉冲数根据输入电流和参考电流之间的差异而变化，脉冲具有取决于差异的极性的正值或负值，参考电流产生电路具有增加的装置 或者响应于脉冲的极性将参考电流减小与脉冲数相对应的量，使得参考电流产生电路产生与输入电流一致的参考电流。