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370 results:
171. Ultrasound noise measured directly on the person – a device developed by PTB can contribute to more accurate assessment of the airborne ultrasound exposure  
Date: 30.05.2022
Percental score: 5 %
A high-frequency personal sound exposure meter (High-Frequency and Ultrasound Personal Exposimeter - HiFUSPEx) newly developed in department 1.6 possesses the measuring capabilities of a “real” sound  
172. Hybrid metrology technology for nanostructured surfaces  
Date: 30.07.2018
Percental score: 5 %
The significant challenges posed by the increasing complexity of nanostructured surfaces used in technological applications include the characterization of such surfaces. The importance of complex  
173. 2.41 Superconductor Circuit Design  
Date: 18.01.2023
Percental score: 5 %
Our working group is developing circuit layouts for different circuits based on the Josephson effects in close cooperation with the working group 2.43. AC Josephson voltage standards and complex  
174. The PTB at the Sinsheim Control from May 12 to 15, 1998  
Date: 05.05.1998
Percental score: 5 %
From May 12 to 15, 1998, at the Control at Sinsheim, more than 600 exhibitors will present for the 12th time recent develop-ments and trends in the field of quality assurance and production control.  
175. Facts about PTB  
Date: 20.02.2023
Percental score: 5 %
PTB is the National Metrology Institute of Germany with scientific and technical service tasks. PTB measures with the highest accuracy and reliability – metrology as the core competence. PTB stands  
176. Broadband measuring station for the extended testing of the directional response pattern of sound level meters and the calibration of measuring microphones  
Date: 07.04.2010
Percental score: 5 %
It is common practice to use sinusoidal sound signals as an excitation signal to reach the low measurement uncertainties required for the testing of the directional response pattern of sound level  
177. Successful testing of platinum-iridium sorption artefacts for precision mass determinations under vacuum conditions  
Date: 27.07.2010
Percental score: 5 %
The influence of sorption effects on the accuracy of mass determinations under vacuum conditions was significantly reduced by means of sorption artefacts made of a platinum-iridium alloy. The  
178. Field Generators  
Date: 14.04.2016
Percental score: 5 %
Microwave calibration facility Here, fields with calculable energy flux density are generated for the exposition of complete RF field monitors from almost arbitrary directions. The equipment is a  
179. Publications  
Date: 19.01.2018
Percental score: 5 %
2016 Frobese, D.-H.: Neufassung der TRBS 3151/TRGS 751 - Aktualisierung der Technischen Regel zur Vermeidung von Brand-, Explosions- und Druckgefährdungen an Tankstellen und Gasfüllanlagen zur  
180. Neutron monitor for pulsed radiation  
Date: 29.09.2008
Percental score: 5 %
At PTB, a new monitor for the measurement of pulsed neutron radiation has been developed, based on the detection of β- radiation from activity reactions on silver. PTB has applied for a patent for  
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