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US 2008/0277609 A1Published application
Non-contact torque sensing for valve actuators
AssigneeFlowserve Management Company
InventorsWilliam T. Dolenti, Byron A. Fleury
Life of this patent
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Abstract
Non-contact torque, thrust, strain, and other data sensing of a valve actuator or valve is disclosed. A sensor may include a surface acoustic wave device.
Claims20
An electrically driven valve actuator, comprising:
- a rotating member;
- and
- a torque or thrust sensor comprising at least one surface acoustic wave device, the at least one surface acoustic wave device attached to the rotating member.
A method of sensing torque in a motor operated valve actuator, the method comprising:
- compressing or placing under tension at least a portion of one or more acoustic wave devices mounted on a surface of a component of a valve actuator;
- wirelessly exciting the one or more acoustic wave devices;
- receiving a wireless output from the one or more acoustic devices;
- and
- utilizing the wireless output to determine the torque on the component.
2 more elements
An electric valve system, comprising:
- an electric valve actuator;
- a valve;
- a rotatable component of the electric valve actuator or valve;
- and
- at least one non-contact sensor operably mounted on the rotatable component, the at least one non-contact sensor configured to generate torque or thrust data.
2 more elements
Dependencies are inferred from the claim text.