公开(公告)号：US20020050756A1

公开(公告)日：2002-05-02

申请号：US09912938

申请日：2001-07-25

发明人： Yoshinori Ito

IPC分类号： H02K013/04 ,  H02K023/50 ,  H02K027/16 ,  H02K027/24

CPC分类号： H02K11/33 ,  F16H25/20 ,  H02K7/06 ,  H02K11/215 ,  H02K11/225

摘要： A rotary absolute signal A is obtained that shows the absolute rotary position at each revolution of the motor based on the output obtained from a rotary encoder 5 affixed to the motor output shaft 2a, and a linear absolute signal B is obtained that shows the absolute linear position per linear stroke pitch along an axial direction 3a of the output shaft 3 based on an output obtained from a linear absolute sensor 6 which is a magnetic induction type sensor and is mounted on the actuator output shaft 3. The distance Lp by which the output shaft 3 is moved per motor revolution and the detection pitch Sp of the linear absolute sensor are set at different values, so in the period until the values become equal, at no point of the output shaft movement is the same absolute signal combination produced. Therefore, the combination of the signals can be used to enable absolute linear position detection over a long stroke.

摘要翻译： 获得旋转绝对信号A，其显示基于从安装到电动机输出轴2a的旋转编码器5获得的输出的电动机每转的绝对旋转位置，并且获得线性绝对信号B，其显示绝对线性 基于从作为磁感应型传感器的线性绝对传感器6获得的输出，并且安装在致动器输出轴3上，沿着输出轴3的轴向3a的每线性行程间距的位置。输出的距离Lp 轴3按照电动机转动移动，线性绝对传感器的检测间距Sp被设定为不同的值，所以在直到值相等的时间段内，在输出轴运动的任何点都是产生相同的绝对信号组合。 因此，信号的组合可以用于在长行程上实现绝对线性位置检测。