Encoders can be used in applications, where length, positions, speed or an angular position are measured. They transform mechanical movements into electrical signals and can be divided into incremental and absolute measuring systems.

Incremental encoders generate pulses,where the number of pulses can be a measure of speed, length or position.

In absolute encoders, every position corresponds to an unique code pattern, so that even after a power cut the actual position is recognised, when power is re-applied.


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