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US 2014/0190263 A1Published application
Acoustic fluid valve calibration
AssigneeFisher Controls International LLC
InventorShawn William Anderson
Life of this patent
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Abstract
Methods and apparatus for acoustic fluid valve calibration are disclosed herein. An example method involves rotating a closure member of a valve to a involves rotating a closure member of a valve to a plurality of positions along a valve stroke, obtaining acoustic emission signals generated by a fluid passing through the valve using a sensor when the closure member is in the positions, and identifying, using a processor, a zero position of the closure member based on the acoustic emission signals.
Claims20
A method, comprising:
- rotating a closure member of a valve to a plurality of positions along a valve stroke;
- obtaining acoustic emission signals generated by a fluid passing through the valve using a sensor when the closure member is in the positions;
- and
- identifying, using a processor, a zero position of the closure member based on the acoustic emission signals.
1 more element
An apparatus, comprising:
- a rotary control valve having a closure member;
- a sensor for obtaining acoustic emission signals generated by fluid passing through the valve;
- and
- a processor to determine a zero position of the closure member based on the acoustic emission signals.
1 more element
An apparatus, comprising:
- means for obtaining acoustic emission signals generated by a fluid when a closure member of a valve is in a plurality of positions along a valve stroke;
- and
- means for identifying a zero position of the closure member based on the acoustic emission signals.
Dependencies are inferred from the claim text.