Absolute vs. incremental encoders: when are they appropriate?

In the world of motor encoders, there are two main types – incremental and absolute. Incremental encoders do not retain their actual position upon power-up, whereas absolute encoders do. They both give position feedback, which the motion controller can use to calculate velocity, acceleration and jerk. These parameters are necessary for a fully capable motion control system. In this episode of Control Intelligence, written by Joey Stubbs, editor in chief Mike Bacidore discusses absolute encoders.

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