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

Proceedings of the 11th International Symposium on Ultrasonic Doppler Methods for Fluid Mechanics and Fluid Engineering: 5 - 7 September 2018, Berlin, Germany (2019); Juling, Markus; Furuichi, Noriyuki; DOI: 10.7795/810.20190809
Determination of optical and geometrical properties of blood cells and microparticle from light scattering measurements (2019); Gienger, Jonas Constantin; DOI: 10.7795/110.20190913
Final Publishable JRP Report “SIB06 BioQuaRT - Biologically weighted quantities in radiotherapy” (2019); Rabus, Hans; DOI: 10.7795/210.20190906B
Final Publishable JRP Summary for JRP SIB06 BioQuaRT - Biologically weighted quantities in radiotherapy (2019); Rabus, Hans; DOI: 10.7795/210.20190906A
Calibración de higrómetros para la medición directa de la humedad relativa : Directriz DKD-R 5-8 (2019); Physikalisch-Technische Bundesanstalt, Braunschweig; DOI: 10.7795/550.20190214ES
Калибровка термометров сопротивления : Методическая инструкция DKD-R 5-1 (2019); Mitglieder des Fachausschusses Temperatur und Feuchte des DKD in der Zeit von 2002 bis 2009; DOI: 10.7795/550.20180828ACRU
Dynamic calibration of force transducers according to the sinusoidal method : Guideline DKD-R 3-10 Sheet 2 (2019); Physikalisch-Technische Bundesanstalt, Braunschweig; DOI: 10.7795/550.20190507AEN
Dynamic verification of material testing machines using applied samples : Guideline DKD-R 3-10 Sheet 3 (2019); Physikalisch-Technische Bundesanstalt, Braunschweig; DOI: 10.7795/550.20190507BEN
Ermittelte Regeln und Erkenntnisse des Regelermittlungsausschusses nach § 46 des Mess- und Eichgesetzes, Stand: 27. Mai 2019 (2019); Regelermittlungsausschuss bei der Physikalisch-Technischen Bundesanstalt (PTB), Braunschweig; DOI: 10.7795/510.20190828
Калибровка диспенсеров многократного дозирования : Методическая инструкция DKD-R 8-2 (2019); Physikalisch-Technische Bundesanstalt (PTB), Die Mitglieder des DKD-Fachunterausschusses Volumen / Dichte; DOI: 10.7795/550.20180201RU
Калибровка приборов для измерения давления : Методическая инструкция DKD-R 6-1 (2019); Mitglieder des Fachausschusses Druck und Vakuum des DKD in der Zeit von 2002 bis 2009; DOI: 10.7795/550.20180828AIRU
Калибровка приборов для измерения вакуума, Основные понятия : Методическая инструкция DKD-R 6-2 Часть 1 (2019); Mitglieder des Fachausschusses Druck und Vakuum des DKD in der Zeit von 1999 bis 2009; DOI: 10.7795/550.20180828AJRU
Economic high resolution fringe counting for heterodyne interferometers using FPGA technology (2019); Meli, Felix; DOI: 10.7795/810.20150325E
Good Practice Guide on Making Rectangular Waveguide Connections at Frequencies above 100 GHz (2019); Kuhlmann, Karsten; Probst, Thorsten; Ridler, Nick; Watts, James; DOI: 10.7795/530.20190805
314. PTB-Seminar, Aktuelle Fortschritte von Kalibrierverfahren im Nieder- und Hochfrequenzbereich 2019 (2019); Rausche, Florian; Kleine Ostmann, Thomas; Schrader, Thorsten; Ulm, David; Arz, Uwe; Kuhlmann, Karsten; Mihalachi, Marius; Kübler, Harald; Rohrig, Christian; Baisch, Tobias; Kuhls, Sebastian; Stadter, Norbert; Beug, Florian; Moser, Harald; Kölling, Axel; Hinz, Michael; Judaschke, Rolf; Weimann, Susanne; Rott, Nicolas; Schmidt, Matthias; Langemann, Jannes; Spiegel, Thomas; DOI: 10.7795/810.20190729