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Intelligent actuator and method of monitoring actuator health and integrity

  • US 9,423,050 B2
  • Filed: 04/09/2013
  • Issued: 08/23/2016
  • Est. Priority Date: 04/09/2013
  • Status: Active Grant
First Claim
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1. An actuator for a control valve, the actuator comprising:

  • an actuator body including an actuator casing defining a cavity;

    an actuator rod adapted to be coupled to a control element of a control valve;

    a biasing device disposed in the cavity of the actuator casing and operably coupled to the actuator rod for biasing the actuator rod into a predetermined position;

    a controller carried by the actuator body and including a memory, a processor, and logic stored on the memory;

    at least one sensor operably coupled to the controller for measuring parameters of the actuator and transmitting measured parameters to the controller, the at least one sensor comprising a vibration sensor mounted to the actuator rod for detecting vibrations in the actuator rod.

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