120 Works

In der Falle

Christoph Schütze, Sarah Schnöge & Fabian Obermair
Junge Wissenschaft. Paper 03/2020

Long Slender Piezo-Resistive Silicon Microprobes for Fast Measurements of Roughness and Mechanical Properties inside Micro-Holes with Diameters below 100 µm

Uwe Brand, Min Xu, Lutz Doering, Jannick Langfahl-Klabes, Heinrich Behle, Sebastian Bütefisch, Thomas Ahbe, Bodo Mickan, Erwin Peiner, Stefan Völlmeke, Thomas Frank, Ilia Kiselev, Michael Drexel & Michael Hauptmannl
During the past decade, piezo-resistive cantilever type silicon microprobes for high-speed roughness measurements inside high-aspect-ratio microstructures, like injection nozzles or critical gas nozzles have been developed. This article summarizes their metrological properties for fast roughness and shape measurements including noise, damping, tip form, tip wear, and probing forces and presents the first results on the measurement of mechanical surface parameters. Due to the small mass of the cantilever microprobes, roughness measurements at very high traverse...

Determination of individual measurement uncertainty components according to DIN EN ISO 6789-2:2017 : Guide DKD-L 10-1

Braunschweig Physikalisch-Technische Bundesanstalt
The standard DIN EN ISO 6789-2:2017 Assembly tools for screws and nuts - Hand torque tools - Part 2: Requirements for calibration and determination of measurement uncertainty (ISO 6789-2:2017), German version EN ISO 6789-2:2017 describes a calibration procedure for torque tools, including the determination of the measurement uncertainty. DKD-L 10-1 has been prepared to specify the application of the DIN standard. In particular, the determination of the measurement uncertainty by means of statistical methods is...

Calibration of conditioning amplifiers for dynamic application : Guideline DKD-R 3-2

Sensors for kinematic or mechanical measuring variables such as acceleration, angular velocity (rotation rate), force, torque or pressure are extended by a conditioning amplifier to be connected to data logging and/or display systems. In combination with this amplifier, the sensor forms a measuring chain. To ensure the exchangeability of the components of this measuring chain, sensor and amplifier are to be characterised individually. This guideline describes validated methods for the characterisation of conditioning amplifiers of...

Statische Kalibrierung von Drehmomentmessgeräten mit Wechseldrehmoment : Richtlinie DKD-R 10-5 Revision 1

Braunschweig Physikalisch-Technische Bundesanstalt
Diese Richtlinie ergänzt DIN 51309:2005-12 um die Kalibrierung von Drehmomentmessgeräten mit Wechseldrehmoment.

13th International Symposium on Hazards, Prevention and Mitigation of Industrial Explosions, Proceedings

Florian Baumann, Michael Beyer, Elisabeth Brandes, Jens Brunzendorf, Sai charan singh Chowhan, Ghazaleh Esmaeelzade, Stefan Essmann, Holger Grosshans, Michael Hau, Vanessa Heilmann, Michael Hilbert, Matthias Himstedt, Werner Hirsch, Tim Krause, Johann-Robert Kummer, Frank Lienesch, Detlev Markus, Dieter Möckel, Thomas Stolz, Nuki Susanti, Adeyemi Taiwo, Martin Thedens, Carsten Uber, Sabine Zakel, Zaheer Abbas … & Yao Zhao
It is our pleasure to present the proceedings of the 13th International Symposium on Hazards, Prevention, and Mitigation of Industrial Explosions (ISHPMIE). The publication of these proceedings was heavily affected by the global situation. In light of these challenges, we are happy to compile proceedings consisting of 84 high-quality papers that reflect the scientific state-of-the-art in the following topical categories: Advances in explosion protection: Strategies, measures, and protective equipment; Detonations and DDT; Electro-chemical energy carriers;...

PTB-Prüfregeln: Therapiedosimeter mit Ionisationskammern für Photonenstrahlungen mit Energien unterhalb von 3 MeV

PTB-Prüfregeln, Band 16

PTB-Prüfregeln: Störfestigkeit: Verfahren zur Prüfung des Einflusses elektromagnetischer Störgrößen auf Meßgeräte

PTB-Prüfregeln, Band 17

PTB-Prüfregeln: Geldspielgeräte nach § 33c Gewerbeordnung mit Anhang „Meßschnittstelle für Geldspielgeräte“

PTB-Prüfregeln, Band 23

Merkblatt für Anträge auf Bauartzulassung von Spielgeräten mit Gewinnmöglichkeit: (Geld- und Warenspielgeräte) nach § 33c bzw. § 60a der Gewerbeordnung (GewO)

Merkblatt zur PTB-Prüfregel Band 23

PTB-Prüfregeln: Meßgeräte für Gas: Meßgeräte für den Kohlenstoffdioxidanteil in Brenngasen

PTB-Prüfregeln, Band 24

PTB-Prüfregeln: Normalmeßbehälter aus Metall zur statischen Bestimmung von Flüssigkeitsvolumen. Teil 2: Prüfung

PTB-Prüfregeln, Band 26, Teil 2

PTB-Prüfregeln: Volumengaszähler

PTB-Prüfregeln, Band 4

PTB-Prüfregeln: Meßwandler

PTB-Prüfregeln, Band 12

PTB-Prüfregeln: Elektronische Mengenumwerter für Gas

PTB-Prüfregeln, Band 20

Quantentechnologie mit Atomen und Photonen Teil II

Nicolas Spethmann, Piet O. Schmidt, Malte Niemann, Christian Ospelkaus, Tanja Mehlstäubler, Henning A. Fürst, André P. Kulosa, Amada Bautista-Salvador, Alexandre Didier, Stefan Kück, Lutz Trahms, Carsten Klempt, Ernst M. Rasel & Maike D. Lachmann
PTB-Mitteilungen. Band 130 (2020), Heft 3. ISSN 0030-834X

Das neue Quantentechnologie-Kompetenzzentrum (QTZ) an der PTB

Wolfgang Ertmer
Enthalten in PTB-Mitteilungen. Band 130 (2020), Heft 3. ISSN 0030-834X

Quantenmetrologie mit Materiewellen

Carsten Klempt, Ernst M. Rasel & Maike D. Lachmann
Enthalten in PTB-Mitteilungen. Band 130 (2020), Heft 3. ISSN 0030-834X

Parasitic Probe Effects in Measurements of Coplanar Waveguides with Narrow Ground Width

Gia Ngoc Phung & Uwe Arz
On-wafer measurements contain a large variety of parasitic effects degrading the accuracy of multiline Thru-Reflect Line (mTRL) calibration. These effects are caused by internal and external disturbances such as probe effects, multimode propagation, crosstalk between adjacent structures and radiation effects. While a lot of investigations have been performed for the most common coplanar waveguides (CPW) with nominal ground width, CPW with too narrow ground width have not been investigated thoroughly. This paper demonstrates how the...

Additional data for the publication \"Long term measurement of the 87Sr clock frequency at the limit of primary Cs clocks\"

Roman Schwarz, Sören Dörscher, Ali Al-Masoudi, Erik Benkler, Thomas Legero, Uwe Sterr, Stefan Weyers, Johannes Rahm, Burghard Lipphardt & Christian Lisdat
The data sets provide additional information on the experiments and the physical background discussed in the publication entitled "Long term measurement of the $^{87}$Sr clock frequency at the limit of primary Cs clocks" in Physical Review Research (DOI: 10.1103/PhysRevResearch.2.033242).

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