Communication

Question 1 angle the advantages and the disadvantages of a closed curl operate on ashes. Advantages: rapid response to an input signal. legal flapping rejection. Better tracking of reference signals. humiliated sensitiveness to schema parameter errors (example: errors in plant or biddingler gains) kickoff sensitivity to changes in normalization errors (recalibration is unnecessary) More accurate restrainer of plant under disturbances and oral variations. Effective and flexible jibe tuning by vary the control gain habit to stabilize outlines that be inherently unstable in the open-loop form. Disadvantages: flatus the use of sensors which increase the frame costs. Involve more(prenominal) components which leads to more costs and decomposableity The military group costs (due to high gains) be high. It has a more complex design, and harder to build. Sometimes obtaining the take measure is either hard or not economically feasible. sign tuning is more ambitious especially if the bandwidth is narrow.

There is eternally a steady responsibility error ( with proportional controllers) The system tends to become unstable as the gain is increased beyond certain limits. Question 2 Pressure measurement transmitter A embrace metre stick transmitter has a additive input- rig graph just comparable the one shown in measuring transmitter graph. The input invest is 0 to 200 kilopascals (kPa), and the output range is 10 to 50 mA. Find the following: railroad siding Cm when input C = 72 kPa. enter C when output Cm = 13.7 mA. Solution: Equation for pressure measuring transmitter is Cm = 0.2C + 10. When C = 72 kPa, interpose C into equation: Cm = 0.2 x 72 + 10 = 24.4. procedure equation higher up: Cm = 0.2C + 10 and so depute 13.7mA into Cm. Where equation as follows:- C = 13.7-100.2= 3.70.2= 18.5 kPaIf you want to gravel a full essay, order of magnitude it on our website: Orderessay

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