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

Hochgenaue Messanlage zur Bestimmung des spektralen Transmissionsgrades an Prismen-Ferngläsern und anderen optischen Komponenten (2024); Reinsch, Heiko; Baier, Maik; Schulz, Michael; DOI: 10.7795/110.20241111
Untersuchung von Farbzentren in Diamant und kolloidalen Halbleiter-Quantenpunkten für die Anwendung in der Radiometrie kleiner Photonenflüsse (2024); Christinck, Justus Daniel; DOI: 10.7795/110.20241008
Experimental and kinetic modeling study on ammonia fuel blends from low to high temperatures (2024); Li, Mengdi; DOI: 10.7795/110.20241024
Exoplanet im Fokus, Erforschung des HD189733-Systems (2024); Weiß, Anna Maria; DOI: 10.7795/320.202405
Additional data for the publication "Zero External Magnetic Field Quantum Standard of Resistance at the 10^−9 Level" (2024); Patel, Dinesh K.; Fijalkowski, Kajetan M.; Kruskopf, Matthias; Liu, Nan; Götz, Martin; et al. DOI: 10.7795/720.20240314
NEXAFS Spectra in Fluorescence and Transmission Mode of Organo-Sulfur Compounds with varying Sulfur Strand Length (2024); Skudler, Konstantin; Müller, Matthias; DOI: 10.7795/720.20241009
Influencing factors on the performance of flow meters in liquid flow measurements (2024); Kroner, Corinna; DOI: 10.7795/110.20240926
KI-Pflege für Orchideen, Dateneffiziente Analyse von Bilddaten komplexer biologischer Systeme mit Künstlicher Intelligenz (KI) (2024); Marx, Elora; Bachmann, Alois; DOI: 10.7795/320.202404
Prispectemp Project in Progress: New Measurements of A-Band of Oxygen in Pure Gas and Mixtures with Nitrogen (2024); Berezkin, Kirill; Lüttschwager, Alexandra; Stosch, Rainer; Li, Gang; DOI: 10.7795/810.20240911A
FEM Analysis of Thermal Properties of an Optical Gas Cell for Ro-Vibrational Spectroscopic Gas Thermometry (RVSGT) (2024); Hadidi, Kianoosh; Li, Gang; DOI: 10.7795/810.20240911B
Supplemental material to the article "Sub-nm precise measurement of adhesive gaps by imaging interferometry" (2024); Schödel, René; Ernst, Hans-Henning; Walkov, Alexander; Großmann, Jan; DOI: 10.7795/720.20240726
PTB-Anforderungen 7.05 „Zusätzliche Zählwerke für die Energieakkumulation bei thermischen Energiemessgeräten“. Ausgabe Juli 2024 (2024); Physikalisch-Technische Bundesanstalt (PTB); DOI: 10.7795/510.20240814
Common requirements for machine- readable certificates in the ISO 17000 series : Expert report DKD-E 0-2 (2024); Krah, Thomas; Czaske, Martin; Demir, Muhammed-Ali; Doering, Lutz; Härtig, Frank; et al. DOI: 10.7795/550.20240812
Gemeinsame Anforderungen an maschinenlesbare Zertifikate der ISO 17000 Reihe : Expertenbericht DKD-E 0-2 (2024); Krah, Thomas; Czaske, Martin; Demir, Muhammed-Ali; Doering, Lutz; Härtig, Frank; et al. DOI: 10.7795/550.20240809
Zum Laserhandmessgerät LTI 20/20 TruSpeed (2024); Physikalisch-Technische Bundesanstalt (PTB), Fachbereich 1.3 "Geschwindigkeit"; DOI: 10.7795/520.20240802