A. time required for the response of first reach its ultimate value is called the response time.
B. overshoot (which is a measure of how much the response exceeds the ultimate value) increase with the decrease of damping co-efficient e.
C. decay ratio (which is the ratio of the sizes of successive peaks) is equal to the reciprocal of overshoot.
D. characteristics of a step response is represented by
Correct Answer
overshoot (which is a measure of how much the response exceeds the ultimate value) increase with the decrease of damping co-efficient e.
Process Control and Instrumentation problems
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1. The time constant of a unity gain, first order plus time delay process is 5 min. If the phase lag at a frequency of 0.2 rad/min is 60°, then the dead time (in minutes) is