Disclosed are methods and devices for controlling a process with a control signal. Iterations of a control routine are implemented to generate the control signal, and when an indication of a response to the control signal is unavailable, a feedback contribution to the control signal is maintained over one or more of the iterations of the control routine. The feedback contribution is then modified upon receiving the response indication, in which the feedback contribution is determined in accordance with an elapsed time between the received response indication and a previous communication of the response indication.

 
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> APPARATUS AND METHOD FOR REAL TIME AND REAL FLOW-RATES MEASUREMENTS OF OIL AND WATER CUTS FROM OIL PRODUCTION

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