| Zugriffsnummer | 27641 |
| Dokumenttyp | Zeitschriftenartikel |
| Sprache | Englisch |
| Titel | Design and realization of the high-precision weighing systems as the gravimetric references in PTB's national water flow standard |
| Autor(in); Institution |
Engel, Rainer; 1.5, Flüssigkeiten, PTB-Braunschweig
Beyer, Karlheinz; Müller-BBM GmbH, Stuttgard, GERMANY
Baade, Hans-Joachim; Dröge Baade Drescher, Salzgitter, GERMANY
|
| Quelle/Jahr | Measurement Science and Technology: 23 (2012), 7, 074020-1 - 074020-12 |
| ISSN | 0957-0233 (PRINT) ; 1361-6501 (ONLINE) |
| DOI | |
| URL | |
| Verlag | Bristol: IOP Publ. |
| Klassifikationscode | PACS: 06.20.fb ; PACS: 07.10.Fq ; PACS: 06.30.Dr ; PACS: 04.80.Nn ; PACS: 45.80.+r |
| Freie Schlagworte | Liquid flow standard ; Liquid flow calibration ; gravimetric-reference standard ; precision weighing system ; vibration isolation ; mechatronics system |
| Zusammenfassung | PTB's "Hydrodynamic Test Field", which represents a high-accuracy water flow calibration facility, serves as the national primary standard for the liquid flow measurands. As is true for most accuracy determining components, it comprises three special-design weighing systems: 300 kg, 3 tons and 30 tons. These gravimetric references were realized as a combination of a strain gauge based and electromagnetic force compensation load cell based balance, each. Special emphases had to be placed upon the dynamics design of the whole weighing system, due to the high measurement resolution and the dynamic behavior of the weighing systems which are dynamically affected by mechanical vibrations caused by environmental impacts, flow machinery operation, flow noise in the pipework and induced wave motions in the weigh tanks. Taking into account all the above boundary conditions, the design work for the gravimetric reference resulted in a concrete foundation "rock" of some 300 tons that rests on a number of vibration isolators. In addition to these passively operating vibration isolators, the vibration damping effect is enhanced by applying an electronic level regulation device. |
Zitierung
Engel, R., Beyer, K., & Baade, H.-J. (2012). Design and realization of the high-precision weighing systems as the gravimetric references in PTB's national water flow standard. Measurement Science and Technology, 23(7), 074020-1–074020-12. https://doi.org/10.1088/0957-0233/23/7/074020