Welcome to the Open Access Repository of the Physikalisch-Technische Bundesanstalt (PTB-OAR)

PTB is the national metrology institute of the Federal Republic of Germany.

This database grants free access to a number of documents and factual datasets that were elaborated at PTB. This includes publications such as the "PTB-Mitteilungen", the metrological expert journal of PTB, and numerous of documents from the field of legal metrology.

Please use the search function or the category selection on the right-hand side to find the publications you are looking for.

When downloading the publications, please take the license conditions for further use into account.

All Resources

Rounding of Results and Measurement Uncertainties in Calibration Certificates : Guide DKD-L 13-3 (2021); Physikalisch-Technische Bundesanstalt (PTB); DOI: 10.7795/550.20220114
Combined Dielectric-Constant Gas Thermometry and Expansion Experiments - Virial Coefficients of Argon (2022); Günz, Christian; DOI: 10.7795/110.20220106
High-Precision Frequency Comparisons and Searches for New Physics with Yb+ Optical Clocks (2021); Lange, Richard; DOI: 10.7795/110.20211216
Weiche Roboter – die Helfer der Zukunft?, Optimierung eines künstlichen Muskels auf Silikon-Basis (2021); Zahn, Flurina; DOI: 10.7795/320.202110
PTB-Anforderungen 12.04 „Verkehrsradargeräte (stationär, transportabel)“. (11/2021) (2021); Physikalisch-Technische Bundesanstalt (PTB); DOI: 10.7795/510.20211210
Sinking Bubbles, Investigating Air Bubbles in Vertically Oscillating Fluids (2021); Riviére, Ophélie Lèna; DOI: 10.7795/320.202109
Optimization of a Self-darkening System, Effect of a resistor in series with an optically addressed spatial light modulator on the input and output light intensity curve (2021); Jathe, Adrien; DOI: 10.7795/320.202108
Dataset for the publication "Mode analysis for long, undamped cantilevers with added diamond tips of varying length for fast roughness measurements" (2021); Behle, Heinrich; Brand, Uwe; DOI: 10.7795/710.20211125
Dataset for the publication "Investigating the Trackability of Silicon Microprobes in High-Speed Surface Measurements" (2021); Xu, Min; Li, Zhi; Fahrbach, Michael; Peiner, Erwin; Brand, Uwe; DOI: 10.7795/720.20211124
Microphone measurements in the vicinity of wind power plants: Results for the wind park in Gagel, Saxony Anhalt, Germany (2021); Rust, Marvin; Koch, Christian; DOI: 10.7795/120.20211130
Validation of measurement uncertainty budgets : Guide DKD-L 13-2 (2020); Physikalisch-Technische Bundesanstalt, Braunschweig; DOI: 10.7795/550.20211118
Microphone measurements in the vicinity of wind power plants: Results for the wind park in Gagel, Saxony Anhalt, Germany (2021); Rust, Marvin; Koch, Christian; DOI: 10.7795/720.20211130
Assessing Time Transfer Methods for Accuracy and Reliability: Navigating the Time Transfer Trade-off Triangle (2021); Teichel, Kristof; Lehtonen, Tapio; Wallin, Anders; DOI: 10.7795/820.20211123K
Rundung von Ergebnissen und Messunsicherheiten in Kalibrierscheinen : Leitfaden DKD-L 13-3 (2021); Mitglieder des Fachausschusses Messunsicherheit des DKD; DOI: 10.7795/550.20211108
Einzelelektronenschaltungen mit ballistischen heißen Elektronen (2021); Freise, Lars; DOI: 10.7795/110.20211111