Servo-motor control system including a two phase digital shaft position detector
    1.
    发明授权
    Servo-motor control system including a two phase digital shaft position detector 失效
    伺服电机控制系统,包括两相数字轴位置检测器

    公开(公告)号:US3843915A

    公开(公告)日:1974-10-22

    申请号:US32926873

    申请日:1973-02-02

    申请人: NCR CO

    发明人: HELMBOLD J

    摘要: Apparatus for providing digital signals indicating the direction and amount of rotation of a stepping motor which apparatus utilizes a code element having at least two code tracks positioned thereon such that each track is located at a different radius from the center of the code element. The code element is rotated past an index point by any rotating device. Means are provided for reading the code in each track and for providing pulse signals indicative of the code in each track. Logic means are utilized for counting the number of pulses from one or both provided signals to determine the amount of code element rotation with respect to the index point, and for comparing the relative occurrence of pulses in at least two provided signals to determine the direction of rotation of the code element.

    摘要翻译: 用于提供指示步进电动机的方向和旋转量的数字信号的装置,该装置利用其上定位有至少两个码轨迹的码元,使得每个轨道位于与码元中心不同的半径处。 代码元素通过任何旋转设备旋转过索引点。 提供了用于读取每个轨道中的代码并提供指示每个轨道中的代码的脉冲信号的装置。 利用逻辑装置对来自一个或两个提供的信号的脉冲数进行计数,以确定代码元素相对于索引点的旋转量,并用于比较至少两个提供的信号中的脉冲的相对出现以确定 代码元素的旋转。