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Erik Malund
03/03/12 15:56
Read: 569 times
Mt Airy, Nc
USA


 
#186397 - yes, but
Responding to: Richard Erlacher's previous message
Reference was made to one that had 2500 pulses per revolution, and an index, yet was considered "relative". I don't suppose the nomenclature makes that much difference, but I am curious. Doesn't the combination allow you to determine exact position, at least to within the precision limits of the encoder?

YES, with a proper quadrature decoder it does BUT, after a power down, not until index has been passed. "Language professors" may argue, but since the position is relative to the index, that's the name.

Erik

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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