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???
03/02/12 09:59
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#186348 - Incremental contrasts with Absolute
Responding to: ???'s previous message
Incremental is used as a tag because it contrasts with Absolute.

An absolute encoder knows where it is thru a power failure, an incremental encoder does not.

You see your description of "rotary or linear encoders. ...2500 pulses/turn" is not sufficient information.

I can have two rotary encoders, with 2500ppr - but one is Absolute, and the other is incremental (aka Quadrature optionally with index pulse)

List of 20 messages in thread
TopicAuthorDate
controlling an incremental encoder            01/01/70 00:00      
   controlling the encoders?            01/01/70 00:00      
   Study time!            01/01/70 00:00      
      Encoder is Feed back element            01/01/70 00:00      
         Encoder is normally feedback loop...            01/01/70 00:00      
   Incremental?            01/01/70 00:00      
      Incremental contrasts with Absolute            01/01/70 00:00      
         Relative            01/01/70 00:00      
            A small positive or negative change            01/01/70 00:00      
         Isn't that absolute as well?            01/01/70 00:00      
            trick question?            01/01/70 00:00      
               by contrast ...            01/01/70 00:00      
                  yes, but            01/01/70 00:00      
                     O.K. I get it ...            01/01/70 00:00      
                  Even With Index            01/01/70 00:00      
                     Single Track Absolute Encoders            01/01/70 00:00      
   just a point            01/01/70 00:00      
   re            01/01/70 00:00      
      Wrong sort of encoder!            01/01/70 00:00      
      Spammer            01/01/70 00:00      

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