| Zugriffsnummer | 33286 |
| Dokumenttyp | Zeitschriftenartikel |
| Peer Review | unbekannt |
| Sprache | Englisch |
| Titel | Qualification of an ultrasonic flow meter as a transfer standard for measurements at Reynolds numbers up to 4x106 between NMIJ and PTB |
| Autor(in); Institution |
Cordova Murillo, Moritz Leopoldo; 7.5, Wärme und Vakuum, PTB-Berlin
Furuichi, Noriyuki; AIST-NMIJ, JAPAN
Lederer, Thomas; 7.5, Wärme und Vakuum, PTB-Berlin
|
| Quelle/Jahr | Flow Measurement and Instrumentation: 45 (2015), 28 - 42 |
| ISSN | 0955-5986 |
| DOI | |
| Verlag | Amsterdam [u.a.]: Elsevier |
| Freie Schlagworte | Interlaboratory Comparison ; Ultrasonic flow meter ; Reynolds number dependence ; Flow traceability ; Transducer cavity |
| Zusammenfassung | The quality of any laboratory intercomparison depends on a large extent on the performance of the used flow meter. To find a flow meter that is capable of reaching a reproducibility better than 0.05% is a difficult task; this would require bounding all involved influence quantities at least to the same level. The present paper describes the efforts performed while qualifiying a time of flight ultrasonic flow meter as a transfer standard. It was determined that the most relevant influence quantity besides the flow profile within the bulk flow, are the influences caused by the transducer pockets in the meter body. By taking advantage of a specially designed window chamber, it was possible to design a precedure to perform a bilateral comparison based on ultrasonic flow meters between the hot water calibration facilities of the Physikalisch-Technische Bundesanstalt and the National Institute of Advanced Industrial Science and Technology. The results of the bilateral comparison are presented. |
| Kostenfreier Zugang | Open Access Hybrid |
| Rechteinformation | CC BY 4.0 ; Creative Commons Attribution 4.0 License |
Zitierung
Cordova Murillo, M. L., Furuichi, N., & Lederer, T. (2015). Qualification of an ultrasonic flow meter as a transfer standard for measurements at Reynolds numbers up to 4x10⁶ between NMIJ and PTB. Flow Measurement and Instrumentation, 45, 28–42. https://doi.org/10.1016/j.flowmeasinst.2015.04.006