This file is from Wikimedia Commons and may be used by other projects.
The description on its file description page there is shown below.
This file was moved to Wikimedia Commons from en.wikibooks using a bot script. All source information is still present. It requires review. Additionally, there may be errors in any or all of the information fields; information on this file should not be considered reliable and the file should not be used until it has been reviewed and any needed corrections have been made. Once the review has been completed, this template should be removed. For details about this file, see below.Check now!
Summary
DescriptionIncremental directional encoder.gif
English: Example of two-row rotary encoder for speed and direction detection. Basically a 2-bit Gray code pattern. Generated by Matt Hercules
In case this is not legally possible: Sidehack grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.
Original upload log
The original description page was here. All following user names refer to en.wikibooks.
(TRY 2 - an arrow in my previous attempt was pointing in the wrong direction!!!) --- Two cycles in each direction to better illustrate relationship between rotary discs and binary (grey code) output value. --- A bit slower animation (800ms per frame instead of 500ms) easier to follow --- Imported in GIMP and modified. GIMP-native xcf file available at: www.deimos.ca/miscjunk/rotaryencoder.xcf (226 kb)