Parameter acquiring device and method, for defining data pairs for valve control in an opening and closing direction
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United States of America Patent
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Feb 16, 2016
Grant Date -
Sep 12, 2013
app pub date -
Mar 11, 2013
filing date -
Mar 12, 2012
priority date (Note) -
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Abstract
A parameter acquiring device for acquiring parameters for a control valve has a controlling valve operating unit, a valve opening signal acquiring unit and a parameter calculator. The controlling valve operating unit operates a controlling valve in an opening direction and in a closing direction by changing, in a specific sequence, a control signal that controls an opening of a regulator valve. The valve opening signal acquiring unit acquires a signal indicating an actual opening of the regulator valve. The parameter calculator acquires data pairs of control signals and valve opening signals. The parameter calculator calculates a parameter of the control valve based on the data pairs that have been acquired.
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