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Jim Granville
03/02/12 02:59
Read: 641 times


 
#186348 - Incremental contrasts with Absolute
Responding to: Per Westermark'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      Carlos Gonzalez      03/01/12 21:50      
   controlling the encoders?      Jim Granville      03/01/12 22:05      
   Study time!      Andy Neil      03/01/12 23:41      
      Encoder is Feed back element      Satish S Munot      03/02/12 08:51      
         Encoder is normally feedback loop...      Per Westermark      03/02/12 11:05      
   Incremental?      Per Westermark      03/02/12 02:50      
      Incremental contrasts with Absolute      Jim Granville      03/02/12 02:59      
         Relative      Per Westermark      03/02/12 03:05      
            A small positive or negative change      Jim Granville      03/02/12 20:26      
         Isn't that absolute as well?      Richard Erlacher      03/03/12 08:25      
            trick question?      Erik Malund      03/03/12 11:00      
               by contrast ...      Richard Erlacher      03/03/12 15:28      
                  yes, but      Erik Malund      03/03/12 15:56      
                     O.K. I get it ...      Richard Erlacher      03/04/12 08:03      
                  Even With Index      Michael Karas      03/03/12 22:04      
                     Single Track Absolute Encoders      Michael Karas      03/04/12 07:20      
   just a point      Erik Malund      03/02/12 06:46      
   re      Ramesh Rai      04/18/12 20:59      
      Wrong sort of encoder!      Andy Neil      04/18/12 23:18      
      Spammer      Per Westermark      04/19/12 07:30      

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