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Principle
Incremental encoder
Incremental encoders give two-phase square wave, the phase difference between them
90 °, often referred to as A and B channels. One of the channels is given and speed-related
Information, at the same time, by sequentially comparing two channel signals, the direction
of rotation of the information obtained. There is also a special signal called Z or Zero channel,
which gives the absolute zero position encoder, the signal is a square wave with the center
line of channel A square wave coincide.
Clockwise counterclockwise
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