Encoder (position)

An '''encoder''' is a sensor which turns a position into an electronic signal.

There are two forms: * Absolute encoders give an absolute position value. * Incremental encoders count movement rather than position. With detection of a datum position and the use of a counter, an absolute position may be derived.

The position may be measured as either linear or angular position * Linear encoder, converts linear position to an electronic signal * Rotary encoder, converts rotary position to an electronic signal

== See also == * Encoder (disambiguation)

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