rather than rotation. Linear encoders often use incremental encoding and are used in many machine tools. Rotary switch References Further reading (NB. Supersedes MIL-HDBK-231(AS) (1970-07-01).) External links "Choosing a code wheel: A detailed look at how encoders work" article by Steve Trahey 2008-03-25 describes "rotary encoders". "Encoders provide a sense of place" article by Jack Ganssle 2005-07-19 describes "nonlinear encoders". "Robot Encoders". Introductory Tutorial on PWM and Quadrature Encoding. Revotics - Understanding Quadrature Encoding - Covers details of rotary and quadrature encoding with a focus on robotic applications. How Rotary Encoder Works - Video explanation how rotary encoder works, plus how to use it with an Arduino microcontroller. Electromechanical engineering Position sensors