METHODS, APPARATUSES AND SYSTEMS FOR CONTROLLING A VALVE BASED ON A COMBINATION OF A CHARACTERISTIC CURVE FOR THE VALVE AND A PROPORTIONAL, INTEGRAL AND DERIVATIVE SIGNAL VALVE
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United States of America Patent
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Issued Date -
Dec 29, 2016
app pub date -
May 19, 2016
filing date -
Jun 26, 2015
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Abstract
A process device control may use a combination of a characteristic curve for the device and a proportional, integral and derivative signal value. The characteristic curve for the device may define operational characteristics of the process device. The proportional, integral and derivative signal value may be representative of process device operational deviations from the characteristic curve.
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