Multi-turn absolute encoder！

In multi-turn applications the encoder shaft
makes more than one revolutions to
complete one machine cycle (e.g. most
linear positioning, where the encoder shaft
makes several turns to complete total travel).
For these applications a multi-turn encoder
will be required.
The principle of the multi-turn encoder is
relatively simple: Several single turn
encoders are connected using a reduction
gear (see Image 2). The first stage supplies
the resolution per turn; the stages behind
supply the number of turns. The available
number of turns is usually 12 bits (212 =
4096).
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