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    • 86. 发明授权
    • Coordinate converter
    • 坐标转换器
    • US4047014A
    • 1977-09-06
    • US672893
    • 1976-04-02
    • Steven MorrisonGeorge A. Williams
    • Steven MorrisonGeorge A. Williams
    • G06G7/22G06G7/80
    • G06G7/80G06G7/22
    • An electronically controlled coordinate converter for transforming vectors from a first coordinate system to a second coordinate system through an input angle is provided using a harmonic oscillator which is responsive to an oscillation angle control signal having a discontinuity or transition point wherein an incremental change in the input angle at a predetermined value causes a step function in the duration of said oscillation angle control signal. The discontinuity in the oscillation angle control signal is eliminated by control circuits within a selected range of input angles where the error effects due to transformations on either side of the discontinuity are avoided. Another feature of the invention is that the discontinuity in the oscillation angle control signal may be shifted away from or in response to a previous vector transformation having an input angle close to the discontinuity to avoid recurrent vector transformations on either side of the oscillation angle control signal discontinuity due to slight incremental fluctuations in the input angle.
    • 使用谐波振荡器提供用于通过输入角将矢量从第一坐标系变换到第二坐标系的电子控制坐标转换器,其响应于具有不连续或转变点的振荡角控制信号,其中输入的增量变化 在预定值处的角度在所述振荡角度控制信号的持续时间内产生阶跃函数。 振荡角度控制信号中的不连续性由输入角度选定范围内的控制电路消除,其中避免了由于不连续性的任一侧上的变换导致的误差效应。 本发明的另一个特征是振荡角度控制信号的不连续性可以偏离或响应于具有接近于不连续性的输入角的先前矢量变换,以避免在振荡角度控制信号的任一侧上的反复向量变换 由于输入角度的轻微增量波动引起的不连续性。
    • 89. 发明授权
    • Deflection angle plotter
    • 偏转角度计
    • US3860791A
    • 1975-01-14
    • US71416768
    • 1968-03-13
    • US NAVY
    • HEADLE JR HERBERT W
    • G06G7/80
    • G06G7/80
    • A deflection angle plotter is provided which replaces the conventional set of plotting curves by a pair of rolled tapes both of which may be extended and retracted and are pivotable at their rolled end and pinned together at the other end. One tape is slotted near the end, this slot accommodates a pin mounted on the other tape. The tape carrying the pin is slidable along the ordinate of the plotter at its rolled end. Target range from own ship is introduced by displacement along the ordinate of the tape carrying the pin while the direction and amount of extension of that tape represents target course and distance to acquisition. Torpedo course and distance to acquisition are represented by the nonslidable tape. Inputs of target course, target range, target speed, torpedo pre-enable speed, torpedo post-enable speed and torpedo enable run distance into a plotter control circuit provide, through appropriate potentiometers and other conventional circuit components, meter readings of range, angle on the bow, target bearing rate, deflection angle and torpedo run time in the rapid solution of a plurality of problems each having a plurality of different parameters.
    • 提供了一种偏转角绘图仪,其通过一对卷筒带代替传统的一组绘图曲线,两个卷筒带可以伸展和缩回,并且可以在其卷绕端枢转并在另一端固定在一起。 一个磁带在端部附近开槽,该插槽容纳安装在另一个磁带上的引脚。 承载销的带可沿着卷轴端的绘图机的纵坐标滑动。 本船的目标范围通过位于沿着带子的带状位置引入,而该带的延伸方向和数量代表目标路线和到达采集距离。 鱼雷课程与拍摄距离由不可分割的胶带代表。 目标行程,目标范围,目标速度,鱼雷预启动速度,鱼雷后启用速度和鱼雷的输入使得到绘图仪控制电路的运行距离通过适当的电位器和其他常规电路组件提供范围的读数,角度 在具有多个不同参数的多个问题的快速解决中,弓,目标承载率,偏转角和鱼雷运行时间。