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    Encoder and encoding method for slip ring
    2.
    发明公开
    Encoder and encoding method for slip ring 有权
    Kodierer und Kodierungsverfahrenfüreinen Gleitring

    公开(公告)号：EP2889585A1

    公开(公告)日：2015-07-01

    申请号：EP14198143.1

    申请日：2014-12-16

    申请人： Nuctech Company Limited

    发明人： Zhu, Yumin ,  Zhang, Jinyu ,  Ding, Hui ,  Tang, Hu

    IPC分类号： G01D5/244

    CPC分类号： G01D5/3473 ,  G01D5/24461 ,  G01D5/24476 ,  H01R39/08

    摘要： Disclosed is an encoder and encoding method for slip ring. The encoder includes: an encoding belt (50) that is fixed to a slip ring and has a plurality of holes regularly arranged on the encoding belt; at least one pair of first sensors (52-1, 52-2, 54-1, 54-2) provided on one side of the encoding belt, wherein the first sensors of each pair generate a first sense signal (A1, B1) and a first redundant sense signal (A2, B2) respectively based on light emitted from the other side of the encoding belt and passing through the plurality of holes, when the encoding belt rotates with the slip ring; and at least one signal combiner (56, 58) connected to the at least one pair of the first sensors, and configured to combine the first sense signal and the first redundant sense signal to obtain a combined sense signal (A', B') as a first encoded signal. With embodiments of the present invention, a redundant signal is provided by using a redundant sensor, and it is possible to avoid interference of foreign substance, improve stability of encoded signals and ensure normal operation of equipment.

    摘要翻译： 公开了一种用于滑环的编码器和编码方法。 编码器包括：编码带（50），其固定在滑环上并且具有规则排列在编码带上的多个孔; 设置在编码带一侧的至少一对第一传感器（52-1,52-2,54-1,54-2），其中每对的第一传感器产生第一感测信号（A1，B1） 以及当所述编码带与所述滑环一起旋转时，分别基于从所述编码带的另一侧发射并穿过所述多个孔的第一冗余感测信号（A2，B2） 以及连接到所述至少一对所述第一传感器的至少一个信号组合器（56,58），并且被配置为组合所述第一感测信号和所述第一冗余感测信号以获得组合感测信号（A'，B'）， 作为第一编码信号。 利用本发明的实施例，通过使用冗余传感器来提供冗余信号，并且可以避免异物干扰，提高编码信号的稳定性并确保设备的正常运行。