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Dead zone
Dead Zone A dead zone is an area on a control system's output-input graph where the system's output is equal to zero regardless of the input. This means that...
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Dead Zone A dead zone is an area on a control system's output-input graph where the system's output is equal to zero regardless of the input. This means that...
A dead zone is an area on a control system's output-input graph where the system's output is equal to zero regardless of the input. This means that the output will remain at zero regardless of the changes in the input, regardless of the setpoint.
Think of it as a dead zone encompassing all points outside the control system's "sweet spot". Any input outside this zone will cause the output to remain at the setpoint.
Example:
Let's consider a simple proportional control system for an object moving on a track.
The input is the position of the object (x).
The output is the position of the object (y).
The setpoint is the desired position (y_setpoint).
If the object is outside the dead zone (y < 0), any increase in the input (x) will cause the output (y) to remain at y_setpoint. This means that the object will never reach the desired position.
Therefore, the dead zone protects the control system from unwanted or unpredictable behavior outside the desired operating range