Encoder and encoding method for slip ring

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United States of America Patent

PATENT NO 9523591
APP PUB NO 20150185053A1
SERIAL NO

14577355

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Abstract

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Disclosed is an encoder and encoding method for slip ring. The encoder includes: an encoding belt 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 provided on one side of the encoding belt, wherein the first sensors of each pair generate a first sense signal and a first redundant sense signal 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 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 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.

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Patent Owner(s)

  • NUCTECH COMPANY LIMITED

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ding, Hui Beijing, CN 80 287
Tang, Hu Beijing, CN 27 105
Zhang, Jinyu Beijing, CN 72 216
Zhu, Yumin Beijing, CN 3 4

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