Incremental encoder！

How does the Electric Encoder differ from the incremental, pulse counting, or other
logic level output, optical encoders?  
The Electric Encoder™ provides the absolute position and its continuous, exceptionallysmooth output signals proportional to the SIN and COS of the measured rotary encoder(orlinear) displacement. Rather than directly encoding the displacement it leaves theencoding task to the A/D converter and software optimized for it.
Is it similar to optical Sine/Cosine encoders?
Only in providing high resolution, but there are three main differences: its "holistic"
nature (see technology section), its much lower profile and its significantly simpler,
more durable, construction. Also it has significantly less electric cycles per revolution
(EC/R). 

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