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48 条记录 (耗时 0.016 秒)

    Step data processor for 180X and 90X compass synchro data
    1.
    发明授权
    Step data processor for 180X and 90X compass synchro data 失效
    用于180X和90X罗盘同步数据的步进数据处理器

    公开(公告)号：US4890105A

    公开(公告)日：1989-12-26

    申请号：US97975

    申请日：1987-09-17

    申请人： Donald E. Bean ,  Billy M. Coleman

    发明人： Donald E. Bean ,  Billy M. Coleman

    IPC分类号： G01C17/36 ,  G01C19/40 ,  G01D5/244 ,  G01D5/245 ,  H03M1/00

    CPC分类号： H03M1/645 ,  H03M1/34

    摘要： A compass data converter converts 180X and 90X synchro compass data to 1/6 degree step data. 180X synchro data is converted by utilizing a 360X to 1/6 degree step data converter that divides the synchro rotation into six 60.degree. sectors providing a digital step data code representative thereof. A 180X converter further sub divides the 60.degree. sectors into 30.degree. sub sectors by selecting a synchro output in accordance with the step data code from the 360X converter and comparing the selected synchro output to ground to provide an additional step data digit. The converter for 90X data further sub-divides the 30.degree. sub-sectors into 15.degree. intervals by selecting two synchro outputs in accordance with the 360X step data code and the additional step data digit and scaling one of the selected synchro outputs to equal the other selected synchro output at the 15.degree. interval boundaries. A comparison of the selected unscaled synchro output and the selected scaled synchro output provides a fifth step data digit for the 90X code.

    Gyroscopic instrument
    2.
    发明授权
    Gyroscopic instrument 失效
    仪器仪表

    公开(公告)号：US3699657A

    公开(公告)日：1972-10-24

    申请号：US3699657D

    申请日：1970-08-03

    申请人： TOKYO KEIKI SEIZOSHO CO LTD

    发明人： KAWADA SHIN-ICHI

    IPC分类号： G01C21/18 ,  G01C19/40

    CPC分类号： G01C21/18 ,  Y10T74/1257

    摘要： A gyroscopic instrument having a gyro case including a gyro therein and supported with three degrees of freedom and means for applying a control torque to the gyro about a substantially horizontal axis across the gyro-spin axis at right angles thereto in response to a differentiated value of the inclination of the gyro-spin axis.