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For example, if a pressure-reducing control loop is closely followed in the process by a flow control loop, the two control loops can appear to be fighting each other, causing both loops to oscillate.

For example, if a feedwater flow control loop oscillates because its set point is oscillating, the problem lies with the drum level controller. The fault analysis should then be applied to the ...

Many applications will work with on-off, closed-loop control using an analog sensor measuring temperature, pressure, level, or flow as an input to control a discrete output. The same analog sensors ...

A level controller cascades down to the setpoints of the two reagent flow control loops (A and B) via ratio stations. In the example, the reagent flows have target ratios of 68 percent for “A” and 32 ...

Only through proper troubleshooting and then solving the underlying problems can control loop performance be improved. Process design certainly plays a role in control loop performance, but ...

Flow control also enables slower-speed devices to communicate with higher-speed ones and vice versa. See xon-xoff. (2) In programming, the if-then and loop statements that make up the program's logic.

The research flow loop created by students at the Univeristy of Tulsa is used to study how a clean hole can be created during the drilling process. Major components include an 81 foot long transparent ...

To implement this control loop, Analog Devices announced the LTM4663, a complete 1.5-A sink/source thermoelectric cooler (TEC) regulator in a 3.5- × 4- × 1.3-mm LGA package (Fig. 1).