Single gyro northfinder
    1.
    发明授权
    Single gyro northfinder 失效
    单陀螺北极

    公开(公告)号:US5369889A

    公开(公告)日:1994-12-06

    申请号:US882865

    申请日:1986-07-07

    IPC分类号: G01C19/38 G01C19/00

    CPC分类号: G01C19/38

    摘要: Disclosed is a northfinding apparatus having a single rotation rate sensor secured to a platform. The output of the rotation rate sensor is corrected for tilt and tilt rate of the platform. Measurements of the tilt and tilt rate and the rotation rate are combined to provide an azimuth angle of the platform relative to north.

    摘要翻译: 公开了一种具有固定到平台的单个转速传感器的检偏装置。 根据平台的倾斜和倾斜率来校正转速传感器的输出。 结合倾斜和倾斜速度和旋转速率的测量来提供平台相对于北部的方位角。

    Discriminant apparatus for a ring laser angular rate sensor
    2.
    发明授权
    Discriminant apparatus for a ring laser angular rate sensor 失效
    环形激光角速度传感器判别装置

    公开(公告)号:US4648716A

    公开(公告)日:1987-03-10

    申请号:US421598

    申请日:1982-09-22

    申请人: Werner H. Egli

    发明人: Werner H. Egli

    IPC分类号: G01C19/68 G01B9/02

    CPC分类号: G01C19/68

    摘要: The present invention provides a discriminant signal apparatus for providing a discriminant signal indicative of the lock-in rate. The discriminant signal apparatus of the present invention is responsive to the behavior of the instantaneous phase difference between the waves, and specifically the behavior of the phase difference occurring substantially about, both before and after, occurrences of the first derivative of the phase difference having substantially zero value.

    摘要翻译: 本发明提供一种用于提供表示锁定速率的判别信号的判别信号装置。 本发明的鉴别信号装置响应于波之间的瞬时相位差的行为,具体而言,基本上在相位差的一阶导数的出现之前和之后基本上都发生的相位差的行为基本上 零值。

    Helmet-mounted sighting system
    3.
    发明授权
    Helmet-mounted sighting system 失效
    头盔安装瞄准系统

    公开(公告)号:US4287809A

    公开(公告)日:1981-09-08

    申请号:US68296

    申请日:1979-08-20

    IPC分类号: F41G3/22 F41G9/00 G01R33/02

    CPC分类号: F41G3/225 H01F2005/027

    摘要: An electromagnetic system for determining the orientation including position of a helmet worn by a pilot is disclosed, having a transmitting antenna for transmitting electromagnetic field vectors, a receiving antenna for sensing the electromagnetic field vectors, a control apparatus responsive to the sensed electromagnetic field vectors and the transmitted electromagnetic field vectors for determining the orientation including location of the helmet, the control apparatus having a first output for supplying the orientation to a utilization apparatus and a second output, a driver for supplying driving energy to the transmitting antenna coils, and a selector switch connected to the second output of the control apparatus and to the driver for sequentially energizing the coils of the transmitting antenna.

    摘要翻译: 公开了一种用于确定包括由飞行员佩戴的头盔的位置的方向的电磁系统,其具有用于传送电磁场矢量的发射天线,用于感测电磁场矢量的接收天线,响应于所感测的电磁场矢量的控制装置,以及 所述发射电磁场矢量用于确定包括所述头盔的位置的方位,所述控制装置具有用于将取向提供给利用装置的第一输出和第二输出,用于向所述发射天线线圈提供驱动能量的驱动器,以及选择器 开关连接到控制装置的第二输出端,并连接到驱动器,用于对发射天线的线圈依次通电。

    Simplified bore hole surveying system by kinematic navigation without
gyros
    4.
    发明授权
    Simplified bore hole surveying system by kinematic navigation without gyros 失效
    简化钻孔测量系统,无陀螺仪运动导航

    公开(公告)号:US4734860A

    公开(公告)日:1988-03-29

    申请号:US831983

    申请日:1986-02-21

    IPC分类号: E21B47/022

    CPC分类号: E21B47/022

    摘要: Apparatus and method for the surveying of bore holes, for example, oil wells and the like, to permit accurate three-dimensional mapping thereof, using an accelerometer package in an instrumentation pod which is lowered into the bore hole. In one embodiment the pod is lowered on the end of a rod string where adjacent rods connected together with Hookes-joint pivots which permit two degrees of freedom of movement between adjacent rods. In another embodiment, rigid interconnections of adjacent rods are used, and the rods are isotropic for twistless flexure as the rods encounter curves in the path of the bore hole. The instrumentation pod is lowered one rod-length at a time, and accelerometer readings are taken which, together with mathematical modeling of rod motion, permits calculation of updated pod position at all depths in the hole.

    摘要翻译: 用于测量钻孔的装置和方法,例如油井等,以允许使用下降到钻孔中的仪表舱中的加速度计封装来精确地对其进行三维映射。 在一个实施例中,荚在杆串的端部下降,其中相邻的杆与钩 - 关节枢轴连接在一起,这允许相邻杆之间的两个自由度的移动。 在另一个实施例中,使用相邻杆的刚性互连,并且当杆遇到钻孔的路径中的曲线时,杆是各向同性的,用于无捻弯曲。 仪器舱一次下降一个杆长度,并且采用加速度计读数,其与杆运动的数学建模一起允许在孔中的所有深度计算更新的舱位置。

    Error cancelling bias system
    5.
    发明授权
    Error cancelling bias system 失效
    错误取消偏差系统

    公开(公告)号:US4695160A

    公开(公告)日:1987-09-22

    申请号:US339357

    申请日:1982-01-15

    申请人: Werner H. Egli

    发明人: Werner H. Egli

    IPC分类号: G01C19/70 G01C19/64

    CPC分类号: G01C19/70

    摘要: A laser angular rate sensor with a lock-in error cancelling biasing system is disclosed.

    摘要翻译: 公开了一种具有锁定误差消除偏置系统的激光角速度传感器。

    Discriminant apparatus for laser gyros
    6.
    发明授权
    Discriminant apparatus for laser gyros 失效
    激光陀螺判别装置

    公开(公告)号:US4526469A

    公开(公告)日:1985-07-02

    申请号:US353711

    申请日:1982-03-01

    CPC分类号: G01C19/665

    摘要: A discriminant apparatus for laser angular rate sensors which provides an output signal related to a selected weighted vectorial sum of the coupling of energy between counterpropagating waves traveling about a closed-loop path. The discriminant apparatus is utilized in a closed-loop control system for minimizing the lock-in rate of the sensor and/or maintaining and selecting scale factor linearity.

    摘要翻译: 一种用于激光角速度传感器的判别装置,其提供与围绕闭环路径传播的反向传播波之间的能量耦合的所选加权矢量和相关的输出信号。 鉴别装置用于闭环控制系统中,以最小化传感器的锁定速率和/或维持和选择比例因子线性度。

    Method and apparatus for distortion free measurements
    7.
    发明授权
    Method and apparatus for distortion free measurements 失效
    无失真测量的方法和装置

    公开(公告)号:US5337141A

    公开(公告)日:1994-08-09

    申请号:US508958

    申请日:1983-06-29

    IPC分类号: G01C19/66 G01C19/64

    CPC分类号: G01C19/662

    摘要: The present invention provides a method and apparatus for removing systematic distortion from measurements of an observable parameter. The method and apparatus of the present invention is particularly useful for removing systematic distortion in phase angle measurements of ring laser angular rate sensors.

    摘要翻译: 本发明提供一种从可观测参数的测量中去除系统失真的方法和装置。 本发明的方法和装置对于去除环形激光角速度传感器的相位角测量中的系统失真特别有用。

    Data projection system with compensation for nonplanar screen
    8.
    发明授权
    Data projection system with compensation for nonplanar screen 失效
    数据投影系统与非平板显示屏的补偿

    公开(公告)号:US5161013A

    公开(公告)日:1992-11-03

    申请号:US681914

    申请日:1991-04-08

    CPC分类号: G09G3/002

    摘要: A data projection system in which a data projector having a data display memory associated therewith projects images to a viewing screen. The system includes a curved or nonplanar viewing screen and computer software effective to provide viewing fidelity by compensating for inaccuracies of the viewing screen.

    摘要翻译: 一种数据投影系统,其中具有与其相关联的数据显示存储器的数据投影仪将图像投影到观看屏幕。 该系统包括弯曲或非平面观看屏幕和计算机软件,其有效地通过补偿观看屏幕的不准确度来提供观看保真度。

    Path length control mechanization for a ring laser angular rate sensor
    9.
    发明授权
    Path length control mechanization for a ring laser angular rate sensor 失效
    环形激光角速度传感器的路径长度控制机械化

    公开(公告)号:US4795259A

    公开(公告)日:1989-01-03

    申请号:US925762

    申请日:1986-10-31

    IPC分类号: G01C19/66 H01S3/083 G01C19/64

    CPC分类号: G01C19/665

    摘要: A path length control for a ring laser is described which captures a true peak power laser mode in the presence of parasitic secondary power modes. The control utilizes a decaying dither of the optical path length which decays from a large initial dither amplitude.

    摘要翻译: 描述了用于环形激光器的路径长度控制,其在存在寄生二次电源模式的情况下捕获真正的峰值功率激光模式。 该控制利用从大的初始抖动振幅衰减的光程长度的衰减抖动。

    Lock-in rate discriminate apparatus for ring laser angular rate sensors
    10.
    发明授权
    Lock-in rate discriminate apparatus for ring laser angular rate sensors 失效
    环形激光角速度传感器的锁定速率鉴别装置

    公开(公告)号:US4657392A

    公开(公告)日:1987-04-14

    申请号:US405452

    申请日:1982-08-05

    申请人: Werner H. Egli

    发明人: Werner H. Egli

    CPC分类号: G01C19/665

    摘要: A discriminant apparatus for a ring laser angular rate sensor is described which provides a discriminant signal indicative of the lock-in rate of the sensor as a function of the phase difference and frequency difference between the counter-propagating waves therein.

    摘要翻译: 描述了一种用于环形激光角速度传感器的判别装置,其提供表示传感器的锁定速率的判别信号作为其中的反向传播波之间的相位差和频率差的函数。