Just as PTB was once – thanks to its measuring skills – at the beginning of quantum mechanics, PTB is now driving the second quantum revolution’s wave of metrological possibilities – with the next generations of atomic clocks, even more precise electrical standards and innovative measurement capabilities in medicine.
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DIN-Veröffentlichung zum Einsatz von UV-C-Luftentkeimern, insbesondere in Kitas und Schulen.
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Internationales Team zeigt, dass Glasfasern für die Verteilung ultrastabiler Laserstrahlung geeignet sind, und erwartet breitere Anwendungen.
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In an article published in Nature, the BASE collaboration at CERN, Geneva, Switzerland, reports on the comparison of the antiproton-to-proton charge-to-mass ratio with eleven significant digits. This new measurement improves the precision of the previous.
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The metric system was introduced in Germany 150 years ago.
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Catalogue of optical constants of 19 materials in the EUV range published [ more ]
New reference standard for longwave downward radiation measurements [ more ]
Development of a metrological reference system for the form measurement of aspheres and freeform surfaces based on a tilted-wave interferometer [ more ]
Comparison of form measurement results for optical aspheres and freeform surfaces [ more ]
Novel LED-based radiation source and its application in diffuse reflectometry and polarization measurements. [ more ]
Solarzellen von morgen: Kinderradio zu Gast in der PTB bei BESSY II [ more ]
The prototyp of the digital calibration certificate has been further developed [ more ]
Aufbau eines laminaren Strömungsreaktors [ more ]
Feldmühlen als rückführbares Messmittel im elektrostatischen Feld [ more ]
Erweiterung geltender Grenzwerte für das Versprühen von Wasser unter hohem Druck, bezogen auf die Zündquelle „statische Elektrizität“ [ more ]
In Braunschweig and Berlin, time comes from atomic clocks, lengths are measured far into the nano-world, scientists do research on fundamental questions concerning the physical units, and the employees in the laboratories calibrate measuring instruments, meeting the most demanding requirements. Therefore, the Physikalisch-Technische Bundesanstalt is among the top names in metrology worldwide. As Germany's national metrology institute, PTB is Germany's highest authority when it comes to correct and reliable measurements. It is the supreme technical authority of the Federal Ministry for Economic Affairs and Climate Action (BMWK) and employs a total of approx. 1900 staff members. PTB operates an integrated 
quality management system which covers the four interlinked field of business. (
Self-Declaration on quality management).
