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Confidence in virtual flowmeters

09.06.2023

Figure: Two ultrasonic clamp-on flowmeters (yellow circles) downstream of a bend configuration. The flow development in the pipe and the fluid mechanical calibration factors of the device are modeled on the basis of a “virtual measurement”.

A method for calculating the simulation uncertainty of a virtual ultrasonic flowmeter has been developed in PTB's VirtMet Competence Center. This method allows calibration factors relevant to fluid mechanics to be calculated for real measuring devices. The method is based on the comparison of real and virtual measurements and allows the continuous determination of calibration factors with their corresponding expanded uncertainty and confidence interval.

 

 

Publication:

M. Straka, A. Weissenbrunner, C. Koglin, C. Höhne, S. Schmelter: Simulation uncertainty for a virtual ultrasonic flow meter. Metrology 2, 335-359 (2022)

https://www.doi.org/10.3390/metrology2030021

 

Contact:

M. Straka, 7.54, E-Mail:martin.straka(at)ptb.de