Robot Feedback

A control system is shown : C is controller, M is robot motor being controlled, S is sensor - (ideally measured output same as actual). I is command input, D is disturbance input and O is the output, which is fedback: Aim O = I despite effects of D.

This page shows how feedback helps make O closer to desired (set by I) and be less affected by disturbance, though is impacted by measurement errors S.

Move sliders to change values of I and D and see how O changes as a result. Click on C, M and S blocks to change their gains, and see how these affect O.

Plots of O vs I and O vs D are shown: When you move sliders, you see where you are on the graph.

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