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

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
How accurate do you know your power at 300 GHz? (2024); Röben, Benjamin; Steiger, Andreas; Lange, Jens Karsten; Gellie, Pierre; Mondal, Priyanka; DOI: 10.7795/810.20240730
Round Robin Comparison: MOIF measurements of the stray field distribution of a magnetic scale (2024); Sievers, Sibylle; Dorosinkiy, Lev; Lindner, Morris; DOI: 10.7795/120.20240627
326. PTB-Seminar, Aktuelle Fortschritte von Kalibrierverfahren im Nieder- und Hochfrequenzbereich 2024 (2024); Krause, Christian; Götz, Martin; Langemann, Jannes; Dubowik, Alexander; Bothe, Harald; et al. DOI: 10.7795/810.20240709
Calibration of measuring instruments and standards for roughness metrology – Calibration of the horizontal measuring system of stylus instruments : Guideline DKD-R 4-2 Sheet 4 (2024); Krüger-Sehm, Rolf; Volk, Raimund; DOI: 10.7795/550.20240701
Test value uncertainty in conformity assessment : Guide DKD-L 4-1 (2024); Herweg, Jonathan; Schaller, Michael; Böck, Andreas Charles; Herz, Kevin; Künkler, André; et al. DOI: 10.7795/550.20240702

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