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Request PDF | Design and tuning of a ratio controller | In this paper a design and tuning procedure for a ratio control architecture is proposed. The overall controlIn this figure the ratio control system consists of the flow transmitter which senses the flow rate of the first pipe and second flow control. The flow controller controls Then Kactual is used as a measurement signal to a ratio controller with the specified K as the setpoint and F2 as the control variable, cf. Figure 9.13. Process. FT1. Corrective action occurs as soon as the controlled variable deviates from the set point, regardless of the source and type of disturbance. 2. Feedback control 15. Ratio Control. Some of its Applications and Imperfections. Arthur Holland, Holland Technical Skills. Ratio control is used to ensure that two or more process Burner Ratio Control. For every burner application two flow gases are required: the fuel (methane, propane or acethylene) and the oxidant. (air or oxygen). The secondary loop should be tuned tightly. Page 8. Cascade Reactor Temperature. Control. Feed. Product. Chemical dosing. System Theory.. Ratio control is used when one process variable needs to be controlled in relation to Aim : To control the flow of two streams using ratio control strategy. um Rm = dm The output of the divider element is sent to a ratio controller (RC) that In Ratio control the leader and follower flow first go to a Ratio block whose output is the input to a Bias/Gain block whose output is the cascade setpoint for a flow