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Thread: what's the difference between absolute and incremental encoders?
www.piclist.com/techref/io/sensors.htm?key=encoder
picon face BY : Spehro Pefhany email (remove spam text)



At 11:08 PM 12/19/02 -0600, you wrote:
>Absolute encoder gives you position, typically in something like
>a Gray code (a binary code which, like the usual, has 2^N states
>for N bits, but only one bit changes at a time, which makes
>things a lot easier- they can easily be converted back and
>forth).
>
>does this mean there is a unique number/output for each spot
>on the encoder?

Exactly. So you might have a 10-bit encoder, which would require
10 outputs and would have 1024 unique ranges of position from the POV
of the encoder.

Best regards,

Spehro Pefhany --"it's the network..."            "The Journey is the reward"
KILLspamspeff.....spaminterlog.com             Info for manufacturers: http://www.trexon.com
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