| Zugriffsnummer | 54538 |
| Dokumenttyp | Zeitschriftenartikel |
| Peer Review | mit Peer Review |
| Sprache | Englisch |
| Titel | Reynolds-dependent velocity profile correction and its uncertainty demonstrated on an ultrasonic clamp-on meter |
| Autor(in); Institution |
Straka, Martin; 7.5, Wärme und Vakuum, PTB-Berlin
Höhne, C.; Emerson, Flexim Flexible Industriemesstechnik GmbH, Berlin, GERMANY
Koglin, Christian; 7.5, Wärme und Vakuum, PTB-Berlin
Funck, B.; Emerson, Flexim Flexible Industriemesstechnik GmbH, Berlin, GERMANY
Eichler, Thomas; 7.5, Wärme und Vakuum, PTB-Berlin
|
| Quelle/Jahr | Metrology: 5 (2025), 1 - 20 |
| Artikelnummer | 57 |
| Availability | [online only] |
| ISSN | 2673-8244 (online) |
| Verlag | Basel: MDPI |
| Freie Schlagworte | Flow metering ; GUM ; Measurement uncertainty ; Clamp-on ; ultrasonic meter |
| Zusammenfassung | Most flow metering methods produce results sensitive to the local velocity profile. In response, manufacturers often implement correction algorithms, though these are rarely supported by rigorous uncertainty evaluations. This paper presents a Reynolds-number-dependent velocity profile correction, applicable under fully developed flow conditions and for the Reynolds-dependent part of the correction in disturbed flows, demonstrated on the example of an ultrasonic clamp-on flow meter. Measurement uncertainties are evaluated and propagated through a regression model using Monte Carlo simulation, in compliance with the Guide to the Expression of Uncertainty in Measurement (GUM). Special care is taken to assess the validity range and impact of assuming fully developed flow conditions at the test rig. A validation case confirms the reliability of the correction algorithm and its associated uncertainty. The proposed approach is generally applicable to other meter types and can be extended to corrections for specific flow disturbances. |
| Kostenfreier Zugang | Open Access Gold |
| Rechteinformation | CC BY 4.0 ; Creative Commons Attribution 4.0 License |
| Themenbereich der Metrologie | Durchfluss |
| Innovationscluster | Energie |
| Geschäftsfelder | Metrologie für die Wirtschaft |