Airplane instrument with throttle control selectively regulated by air
speed or lift
    2.
    发明授权
    Airplane instrument with throttle control selectively regulated by air speed or lift 失效
    具有节气门控制的飞机仪表由空气速度或电梯选择性地调节

    公开(公告)号:US4093158A

    公开(公告)日:1978-06-06

    申请号:US753711

    申请日:1976-12-23

    CPC classification number: G01C23/00 G05D1/0607

    Abstract: An aircraft instrument comprising equipment for providing a first signal which is a function of airspeed and suitable for use in controlling an aircraft by variation of the airspeed to a predetermined value, an apparatus for providing a second signal which is a function of lift and suitable for use in controlling the aircraft by variation of the airspeed to adjust the lift to a predetermined value, and a selecting apparatus arranged to apply the second signal to a signal utilization mechanism for controlling the aircraft in accordance with said second signal except when said second signal falls below a predetermined datum level, which represents a safe margin above stall, whereupon the first signal is applied to the signal utilization mechanism, the selecting apparatus being arranged to provide a transition between control by the first signal and control by the second signal which is shorter than a transition between control by the second signal and control by the first signal.

    Abstract translation: 一种飞机仪器,包括用于提供作为空速的功能的适合用于通过将空速变化控制飞行器的第一信号到预定值的设备的设备,用于提供作为升力的函数的第二信号的设备, 用于通过空速的变化来控制飞行器,以将升程调节到预定值;以及选择装置,其布置成将第二信号施加到用于根据所述第二信号控制飞行器的信号利用机构,除了当所述第二信号下降时 低于停止以上的安全余量的预定基准电平,由此将第一信号施加到信号利用机构,所述选择装置被设置为提供第一信号的控制和较短的第二信号的控制之间的转换 比第二信号的控制和第一信号的控制之间的转变。

    Method and apparatus for determining a current in a conductor
    3.
    发明申请
    Method and apparatus for determining a current in a conductor 失效
    用于确定导体中的电流的方法和装置

    公开(公告)号:US20050068020A1

    公开(公告)日:2005-03-31

    申请号:US10845892

    申请日:2004-05-14

    Applicant: David Sweeting

    Inventor: David Sweeting

    CPC classification number: G01R19/2513 G01R15/18 G01R19/0092

    Abstract: The present invention provides a method of determining a current in a conductor. The method comprises the steps of determining the nth spatial derivative of at least one vector component of the magnetic field associated with the current at at least one position and calculating the current from the nth spatial derivative. The present invention also provides an apparatus for determining a current in a conductor. The apparatus comprises a means for determining at least one vector component of the magnetic field associated with the current at at least two different positions and a means for determining the nth spatial derivative of at least one vector component of the magnetic field from the or each vector component of the magnetic field measured at the at least two positions. The apparatus also comprises a means for calculating the current from the nth spatial derivative.

    Abstract translation: 本发明提供一种确定导体中的电流的方法。 该方法包括以下步骤:确定与至少一个位置处的电流相关联的磁场的至少一个矢量分量的第n个空间导数,并从第n个空间导数计算电流。 本发明还提供一种用于确定导体中的电流的装置。 该装置包括用于确定与至少两个不同位置处的电流相关联的磁场的至少一个矢量分量的装置,以及用于确定来自所述磁场的磁场的至少一个矢量分量的第n个空间导数的装置 或在至少两个位置处测量的磁场的每个矢量分量。 该装置还包括用于从第n个空间导数计算电流的装置。

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