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I want to know more about this kind of encoder, but I can't find any source (other than wikipedia), where I can get more details about it. Can anyone explain or point me to a source where I can read about it? I want to understand the working principle of mechanical absolute encoder.

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  • \$\begingroup\$ Aren't those pretty much just high-quality and high-linearity potentiometers? \$\endgroup\$ – Joren Vaes Apr 29 '17 at 6:05
  • \$\begingroup\$ Yes, they are like potentiometers, but working principle seems to be different than potentiometers that I know. As I read about mechanical absolute encoders, documentation says that there are few brush-type contacts, and I can't understand how they work. \$\endgroup\$ – Linksx Apr 29 '17 at 6:15
  • \$\begingroup\$ Google 'absolute encoder tutorial' - lots of links, including youtube \$\endgroup\$ – Chu Apr 29 '17 at 9:24
  • \$\begingroup\$ I don't have a problem understanding what an 'absolute encoder' is, I know about optical, magnetic types, I understand them. But I want to know about MECHANICAL encoder. \$\endgroup\$ – Linksx Apr 29 '17 at 9:32
  • \$\begingroup\$ Can you give a link to a typical device? \$\endgroup\$ – Chu Apr 29 '17 at 9:38
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Sort of like thumbwheel switches.

Customizing Digital Thumbwheel Switches

Incremental mechanical encoders are used in computer mice and digital control knobs but these usually only have 3 contacts that resolve A and B quadrature signals.

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