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

Good practice guide to ensure complete conversion from para to normal hydrogen of vaporized liquified hydrogen (2022); Günz, Christian; DOI: 10.7795/110.20221115
Evaluation and Comparison of PIM Measurement Uncertainty using Different Methods (2022); Sayegh, Ahmed; Gellersen, Frauke; Stein, Friederike; Kuhlmann, Karsten; DOI: 10.7795/810.20221118
Additional data for the publication “Experimental determination of the E2-M1 polarizability of the strontium clock transition” (2022); Dörscher, Sören; Klose, Joshua; Maratha Palli, Sarath; Lisdat, Christian; DOI: 10.7795/720.20221026
Die Würfel sind gefallen, Strategieoptimierung des Spieles Qwixx durch maschinelles Lernen (2022); Janetzki, Susann; DOI: 10.7795/320.202206
PTB-Anforderungen 5.01 „Automatische Füllstandsmessgeräte für stationäre Lagerbehälter“. Ausgabe September 2022 (2022); Physikalisch-Technische Bundesanstalt (PTB); DOI: 10.7795/510.20220922
Mit Ultraschall auf Abstand, Entwicklung und Test eines Mess-Systems zur Analyse das Abstandsverhalten in Menschenansammlungen (2022); Schmedding, Hannah; Brinkmann, Lisa; Duong Dang, Tu; Kallis, Paul; Stricker, Kevin; DOI: 10.7795/320.202204
Wearable assistant guiding through traffic, Development and optimization of a portable guidance system for the blind and visually impaired with the application of artificial intelligence (2022); Nemes, Tamas; DOI: 10.7795/320.202205
Vergleich von EN 1539 und NFPA 86 mit dem besonderen Schwerpunkt des Explosionsschutzes (2022); Stolpe, Frank; Schröder, Lea; Mainka, Thomas; DOI: 10.7795/110.20220927
PTB-Anforderungen 5.02 „Lagerbehälter“. Ausgabe September 2022 (2022); Physikalisch-Technische Bundesanstalt (PTB); DOI: 10.7795/510.20220923
IRSD raw alpha spectrum data for Rn-222 emanation determination (2022); Mertes, Florian; Röttger, Stefan; Röttger, Annette; DOI: 10.7795/720.20220921
PTB-Anforderungen 12.07 „Weg-Zeit-Messgeräte mit Helligkeitssensoren (stationär, semistationär, transportabel)“. Ausgabe Juli 2022 (2022); Physikalisch-Technische Bundesanstalt (PTB); DOI: 10.7795/510.20220920
On the Influence of Thru- and Line-Length-Related Effects in CPW- Based Multiline TRL Calibrations (2021); Phung, Gia Ngoc; Arz, Uwe; DOI: 10.7795/EMPIR.18SIB09.CA.20220915A
Comparison of coplanar waveguide models at millimetre wave frequencies (2022); Phung, Gia Ngoc; Arz, Uwe; Heinrich, Wolfgang; DOI: 10.7795/EMPIR.18SIB09.CA.20220915D
Parasitic Probe Effects in Measurements of Conductor-Backed Coplanar Waveguides (2021); Phung, Gia Ngoc; Arz, Uwe; DOI: 10.7795/EMPIR.18SIB09.CA.20220915B
On the Influence of Metal Chucks in Wideband On-Wafer Measurements (2022); Phung, Gia Ngoc; Arz, Uwe; DOI: 10.7795/EMPIR.18SIB09.CA.20220915C