The resolution and precision of rotary encoder！

Encoder is a specific information from one format (or encoding) into another specific format (or encoding) of the sensor, or software algorithms, it may be due to the conversion the standardization, speed, secrecy , security or to compress the data.

Here I want to clarify, encoder resolution units not only bit, it may be the other. Strictly speaking, I personally think that the "resolution of the encoder unit" this name is wrong, it should be called "encoder resolution corresponding parameters." Welcome criticism.

Resolution parameter corresponding to the encoder and its associated effects occasion
On the rotary encoder, it can be "transferred per tick (line)", also can be "pulses per revolution (PPR)", minimum step (Step), bit (Bit) and so on.
In a communication data output type encoder or absolute encoder, the output resolution is the number of "bits (Bit)" to express, the circumference of the split, that is a power of 2.
The following link in the first motion picture very interesting, you can feel the encoder logic diagram below, even if not read can also leave a first impression.

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