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.

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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

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