December 2002
Intermediate to advanced
800 pages
18h 7m
English
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4.2. First-Order + Dead Time
Recall that a first-order + dead-time process, represented by the transfer function relationship
Equation 4.1
has the following output response to a step input change,
Equation 4.2
where the measured output is in deviation variable form. The three process parameters can be estimated by performing a single step test on the process input.
The gain is found as simply the long-term change in process output divided by the change in process input. Also the time delay is the amount of time, after the input change, before a ...
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