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Title: An innovative approach to increase diagnostic sensitivity in ultrasonic flow meters
Author: Daniel Heinig Jrg Wenzel Dr. Alexander Nerowski Toralf Dietz
Source: 2018 North Sea Flow Measurement Workshop
Year Published: 2018
Abstract: Operators for custody transfer of natural gas require a fiscal meter that measures with highest reliability within the required accuracy limits throughout the lifetim e. Whenever this requirement is not fulfilled due to changed process/flow conditions or changes to the meter, the user needs to be warned in real - time. For instance, inner pipe wall corrosion and contamination can in many field situations not be excluded. To ensure such warning, the analysi s of diagnostic parameters offered by modern ultrasonic flow meter is essential. Another approach is adding metering redundancy. In the first approach it is very important to have a long - term history of these diagnostics or applied fingerprint concept wher e current status is compared with initial/ideal data. Both support a properly determination if a meter is still operating within the appropriate limits.

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