Differential adjustment
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In DCS, the derivative in differential control represents the rate of change of the deviation. Is this rate of change calculated as the deviation between the measured value and the set value divided by the set value? I hope fellow sea lovers can offer guidance
The rate of change of deviation refers to the change in deviation per unit of time.
Is that the rate of change of the difference between the measured value and the set value per unit time?
Yes, if there is a deviation but it remains unchanged, the differential effect is zero