A process is controlled by PID controller. The sensor has high, measurement noise. How can the effect be reduced?
A. By use of bandwidth limited derivative term
B. By use of proportional and derivative terms in the forward path
C. By use of high proportional band
D. By use of low integral gain
Answer:B
A process is controlled by PID controller. The sensor has high, measurement noise. How can the effect be reduced?
A. By use of bandwidth limited derivative term B. By use of proportional and derivative terms in the forward path C. By use of high proportional band D. By use of low integral gain
Explanation: The effect of noise can be reduced by the use of proportional and derivative controller in the forward path.