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So wie die PTB mit ihrer Messkunst am Beginn der Quantenmechanik stand, so treibt sie jetzt die messtechnischen Möglichkeiten der Zweiten Quantenrevolution voran – mit den nächsten Generationen von Atomuhren, noch präziseren elektrischen Standards und innovativen Messmöglichkeiten in der Medizin.

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PTBnews 1.2020

PTBnews 1.2020

Three times a year, PTB News provides topical information from the varied spectrum of activities of the Physikalisch-Technische Bundesanstalt (PTB) consisting of fundamental research, legal metrology and PTB's various activities in the service of the economy.
maßstäbe 13 (in German only)

maßstäbe 13 (in German only)

This issue of maßstäbe ("Alltag in Maßen" - "Everyday Measurements") invites you to a journey which starts in our body and does not end in all sorts of networks.
PTB-Mitteilungen 4.2017

PTB-Mitteilungen 4.2017

Issue 4: Metrology for the Digitalization of the Economy and Society
After nearly 130 years of service, the international prototype of the kilogram is expected to be retired in the fall of 2018 (at the General Conference on Weights and Measures). The Avogadro experiment, which aims to determine the number of atoms contained in a near-perfect silicon sphere, is a cornerstone of the redefinition of the kilogram.

Titelseite JB 2017

The Annual Report is published every spring and reports on PTB's work in the past year. The full version is to be found here on the Internet; excerpts from it are also available as a printed brochure.

Traceable calibration of Shack–Hartmann wavefront sensors employing spherical wavefronts [ more ]

Agreement on EUV reflectometry with ZEISS extended for another four years [ more ]

Open Access Veröffentlichungen und Forschungsdatensätze aus der PTB sind jetzt auch in BASE-Search indexiert [ more ]

Basis für neuartige Vergleichsmessungen der Aktivität von Betastrah-lern beim BIPM geschaffen: Das ESIR-System [ more ]

Charakterisierung der winkelabhängigen Abstrahlung von Einzelphotonenemittern basierend auf einzelnen Stickstofffehlstellen-Zentren in Nanodiamanten [ more ]

Long term measurement of the 87Sr clock frequency at the limit of primary Cs clocks. [ more ]

Precise measurement of symmetrically transmitted scattering parameters [ more ]

PTB entwickelt innovative Messtechnik für zukünftige Gleichstrom-Niederspannungsnetze [ more ]

X-ray scattering measurements for highly efficient perovskite solar cells [ more ]

PTB supplies primary electrical quantum standards for the BIPM [ more ]

PTB - The National Metrology Institute of Germany

PTB's profile of tasks

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 Energy (BMWi) and employs a total of approx. 1900 staff members. PTB operates an integrated Opens internal link in current windowquality management system which covers the four interlinked field of business. (Initiates file downloadSelf-Declaration on quality management).

Corporate logo of the Federal Ministry for Economic Affairs and Energy

The Physikalisch-Technische Bundesanstalt, the National Metrology Institute of Germany, is a scientific and technical higher federal authority falling within the competence of the Federal Ministry for Economic Affairs and Energy.