| Zugriffsnummer | 27832 |
| Dokumenttyp | Konferenzartikel in Zeitschrift |
| Peer Review | unbekannt |
| Sprache | Englisch |
| Titel | The upgraded PTB 600 m baseline: a high-accuracy reference for the calibration and the development of long distance measurement devices |
| Autor(in); Institution |
Pollinger, Florian; 5.4, Interferometrie an Maßverkörperungen, PTB-Braunschweig
Meyer, Tobias; 5.4, Interferometrie an Maßverkörperungen, PTB-Braunschweig
Beyer, Jens; 5.4, Interferometrie an Maßverkörperungen, PTB-Braunschweig
Doloca, Nicolae R.; 5.4, Interferometrie an Maßverkörperungen, PTB-Braunschweig
Schellin, Wolfgang; TU Braunschweig, Institut für Geodäsie und Photogrammetrie, Braunschweig, GERMANY
Niemeier, Wolfgang; TU Braunschweig, Institut für Geodäsie und Photogrammetrie, Braunschweig, GERMANY
Jokela, Jorma; Finnish Geodetic Institute, Masala, FINLAND
Häkli, Pasi; Finnish Geodetic Institute, Masala, FINLAND
Abou-Zeid, Ahmed; PTB-Braunschweig, retired staff
Meiners-Hagen, Karl; 5.4, Interferometrie an Maßverkörperungen, PTB-Braunschweig
|
| Quelle/Jahr | Measurement Science and Technology: 23 (2012), 9, 094018-1 - 094018-11 |
| ISSN | 0957-0233 |
| DOI | |
| Verlag | Bristol: IOP |
| Konferenzangaben | MacroScale 2011, Conference on Recent Developments in Traceable Dimensional Measurements, Bern-Wabern, 04-06, October, 2011, Switzerland |
| Klassifikationscode | PACS: 06.20.fb ; PACS: 06.20.Dk ; PACS: 06.30.Bp |
| Freie Schlagworte | geodetic baseline ; long distance measurement ; refractivity compensation ; calibration ; measurement uncertainty ; length measurement ; femtosecond laser-based time-of-flight distance meter |
| Zusammenfassung | The calibration and verification of high-precision electronic distance meters (EDMs) requires well-characterized and calibrated geodetic baselines. As the length measurements are performed typically over several hundred metres in air, a thorough understanding of the environmental conditions is necessary. In the course of a major refurbishment, the 600 m baseline of the Physikalisch-Technische Bundesanstalt at Braunschweig, Germany, was equipped with a dense environmental sensor network. This paper presents the characterization of this novel reference baseline, including the calibration of the inter-pillar distances, and identifies the major sources of uncertainty for such a length standard. A preliminary expanded standard uncertainty (k = 2) of U (l)k=2 = √(6.2 × 10−4 m)2 + (7.6 × 10−7 l)2 is deduced for single-slope distance comparisons on the baseline. In the course of a full calibration, the additive constant cEDM of an EDM can currently be determined with an expanded uncertainty of U(cEDM)k=2 = 6.1 × 10−5 m, and its scale correction sEDM with an expanded uncertainty of U(sEDM)k=2 = 8.2 × 10−7. As an example, a femtosecond laser-based distance measurement over 600 m on this baseline is presented. |
Zitierung
Pollinger, F., Meyer, T., Beyer, J., Doloca, N. R., Schellin, W., Niemeier, W., Jokela, J., Häkli, P., Abou-Zeid, A., & Meiners-Hagen, K. (2012). The upgraded PTB 600 m baseline: a high-accuracy reference for the calibration and the development of long distance measurement devices. Measurement Science and Technology, 23(9), 094018-1–094018-11. https://doi.org/10.1088/0957-0233/23/9/094018