An analogue controller system uses op-amp to maintain the flow of a liquid at 6 gal/min....

 

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An analogue controller system uses op-amp to maintain the flow of a liquid at 6 gal/min. The system consists of an electrically operated flow valve, a flow sensor, and an analogue circuit controller. The flow valve is operated with a signal of 0-5 V, where 0 V corresponds to completely closed and 5 V is all the way open. The flow sensor provides an output signal of 0-5 V, which correspond to 0-20 gal/min, this signal is subtracted from the set point. Observe the diagram in fig 1 below: 6 gal/min Set point Flow valve 0-5 V Controller Fig 1: Q2.4 diagram 5V Assuming the transfer function of controller circuit is TF = applied to the set point. 3V' Flow sensor (0-5 V) calculate the input voltage Design the circuit diagram of the controller with the use of resistors, appropriate voltage divider at the set point and determine the value of each resistor. (3) (5) An analogue controller system uses op-amp to maintain the flow of a liquid at 6 gal/min. The system consists of an electrically operated flow valve, a flow sensor, and an analogue circuit controller. The flow valve is operated with a signal of 0-5 V, where 0 V corresponds to completely closed and 5 V is all the way open. The flow sensor provides an output signal of 0-5 V, which correspond to 0-20 gal/min, this signal is subtracted from the set point. Observe the diagram in fig 1 below: 6 gal/min Set point Flow valve 0-5 V Controller Fig 1: Q2.4 diagram 5V Assuming the transfer function of controller circuit is TF = applied to the set point. 3V' Flow sensor (0-5 V) calculate the input voltage Design the circuit diagram of the controller with the use of resistors, appropriate voltage divider at the set point and determine the value of each resistor. (3) (5)