METHODS AND APPARATUS FOR ANALYZING EFFECTS OF FRICTION ON PROCESS CONTROL DEVICES

Methods and apparatus for analyzing effects of friction on process control devices are disclosed herein. An example apparatus includes a housing; a processor disposed in the housing, the processor to: determine a first force or torque corresponding to friction of a process control device and an actu...

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Bibliographische Detailangaben
1. Verfasser:	ANDERSON SHAWN WILLIAM
Format:	Patent
Sprache:	eng
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES LIGHTING MEASURING MECHANICAL ENGINEERING PHYSICS TAPS TESTING THERMAL INSULATION IN GENERAL VALVES WEAPONS
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Beschreibung
Zusammenfassung:	Methods and apparatus for analyzing effects of friction on process control devices are disclosed herein. An example apparatus includes a housing; a processor disposed in the housing, the processor to: determine a first force or torque corresponding to friction of a process control device and an actuator operatively coupled to the process control device via a stem or shaft; in response to the first force or torque, determine a first command to operate the process control device via the stem or shaft to obtain a first response of the actuator; determine a second force or torque corresponding to friction of the process control device and the actuator; and in response to the second force or torque, determine a second command to operate the process control device via the stem or shaft to obtain a second response of the actuator.