Data processing: measuring – calibrating – or testing – Testing system – Of circuit
Reexamination Certificate
2006-07-07
2009-02-24
Lau, Tung S (Department: 2863)
Data processing: measuring, calibrating, or testing
Testing system
Of circuit
Reexamination Certificate
active
07496465
ABSTRACT:
A method, apparatus, and computer program are provided for actuator performance monitoring. A test of an actuator in a process control system can be initiated, such as when a break in the operation of the actuator or a machine associated with the actuator is detected. The test could include providing a varying control signal (such as a varying pressure signal) to the actuator. A response of the actuator to the control signal is analyzed to determine if the actuator is suffering from one or more faults. Analyzing the response could include generating a first pressurization curve identifying how a pressure in the actuator varies over time in response to the pressure signal. Analyzing the response could also include comparing the first pressurization curve to a second pressurization curve, such as a baseline pressurization curve generated when the actuator was first commissioned in the process control system.
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Beselt Ron E.
Chirico Salvatore
Honeywell International , Inc.
Lau Tung S
Munck Carter P.C.
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