Methods and apparatus for analyzing effects of friction on process control devices
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United States of America Patent
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Sep 12, 2017
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N/A
app pub date -
Jun 8, 2015
filing date -
Apr 20, 2012
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Abstract
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.
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