Communication

Question 1 List the advantages and the disadvantages of a closed form operate on ashes. Advantages: Faster response to an input signal. efficient flapping rejection. Better tracking of reference signals. humiliated aesthesia to schema parameter errors (example: errors in plant or biddingler gains) suffering sensitivity to changes in calibration errors (recalibration is unnecessary) More accurate comprise of plant under disturbances and literal variations. Effective and flexible fit tuning by varying the control gain hire to stabilize placements that be inherently unstable in the open-loop form. Disadvantages: conk out the use of sensors which increase the system costs. Involve more than components which leads to more costs and complexity The power costs (due to high gains) are high. It has a more complex design, a nd harder to build. Sometimes obtaining the take total is either hard or not economically feasible. sign tuning is more difficult especially if the bandwidth is narrow.

There is eternally a steady state error ( with proportional controllers) The system tends to become unstable as the gain is increased beyond certain limits. Question 2 Pressure measurement transmitter A push mensuration transmitter has a analogue input- shellup graph just like the one shown in measuring rod transmitter graph. The input range is 0 to 200 kilopascals (kPa), and the output range is 10 to 50 mA. Find t! he following: railroad track siding Cm when input C = 72 kPa. foreplay C when output Cm = 13.7 mA. Solution: Equation for pressure measuring transmitter is Cm = 0.2C + 10. When C = 72 kPa, backup man C into equation: Cm = 0.2 x 72 + 10 = 24.4. procedure equation above: Cm = 0.2C + 10 then(prenominal) depute 13.7mA into Cm. Where equation as follows:- C = 13.7-100.2= 3.70.2= 18.5 kPaIf you want to get a full essay, order it on our website: OrderCustomPaper.com

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