INLINE ULTRASONIC METER (USM) CONDITION BASED MONITORING (CBM)-BASED ADAPTATION TO MAINTAIN HIGH ACCURACY UNDER VARIOUS FLOW CONDITIONS

摘要

A system includes a control system and a field device. The control system is configured to communicate data with the field device. The field device determines whether a deviation in a measurement accuracy of a first characteristic curve for a flow profile of a process fluid is detected while monitoring an inline condition of the process fluid. The field device determines whether the deviation is greater than an application tolerance. The field device also performs an inline recalculation for a new characteristic curve according to present flow condition detected in measurements of the flow profile when the deviation is greater than the application tolerance. The field device calculates a flow rate of the process fluid using the new characteristic curve.

主权项

1. A system comprising:
a control system configured to communicate data with one or more field devices; and a field device configured to:
determine whether a deviation in a measurement accuracy of a first characteristic curve for a flow profile of a process fluid is detected while monitoring an inline condition of the process fluid;determine whether the deviation is greater than an application tolerance;perform an inline recalculation for a new characteristic curve according to present flow condition detected in measurements of the flow profile when the deviation is greater than the application tolerance; andcalculate a flow rate of the process fluid using the new characteristic curve.