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361 results:
91. 4.23 Optical Nanometrology  
Date: 20.01.2021
Percental score: 5 %
Overview on standards for nanometrology   http://www.nanoscale.ptb.de/nanoscale/nanoscale-standards.html http://www.nano-refmat.bam.de/en/ Linewidth calibrations on photomasks are offered  
92. Extending the RDI model observer to images with an anatomic background  
Date: 23.12.2020
Percental score: 4 %
In mammography, raw images are processed by means of sophisticated procedures before being used for diagnosis. According to the protocols that are presently valid, only raw images of technical  
93. PIM measurements on a multiband antenna in the project “5G-Reallabor”  
Date: 08.12.2020
Percental score: 6 %
Dynamic PIM measurement being carried out on a multiband antenna Passive intermodulation (PIM) leads to interference signals in cellular networks and can therefore degrade network quality. In the project “5G-Reallabor”, PTB is working on traceability for PIM  
94. Tilted-Wave Interferometer (TWI) as Example for Hand-in-Hand Calibration of Real and Virtual Experiments  
Date: 06.11.2020
Percental score: 6 %
The optical industry uses aspheres and free-form surfaces in modern optical systems, which, however, place very high demands on metrology. Optical measurement techniques have a prominent role to play  
95. Digitalisierung ES Metrologia para la digitalizacion de la economia y la sociedad  
Date: 30.09.2020
Percental score: 1 %
Digitalisierung ES Metrologia para la digitalizacion de la economia y la sociedad MetrologÍa para la digitalización de la economía y la sociedad Contenido MetrologÍa para la digitalización de la  
96. Digitalisierung RU METROLOGIJA DLJA DIGITALIZACII EHKONOMIKI I OBSHCHESTVA  
Date: 30.09.2020
Percental score: 1 %
Digitalisierung RU METROLOGIJA DLJA DIGITALIZACII EHKONOMIKI I OBSHCHESTVA МЕТРОЛОГИЯ ДЛЯ ДИГИТАЛИЗАЦИИ ЭКОНОМИКИ И ОБЩЕСТВА Содержание МЕТРОЛОГИЯ ДЛЯ ДИГИТАЛИЗАЦИИ ЭКОНОМИКИ И  
97. Criteria and Procedures QS Approval June2020  
Date: 14.09.2020
Percental score: 2 %
Criteria and Procedures QS Approval June2020 Conformity Assessment Body Criteria and procedures for the approval of the quality systems of measuring instruments manufacturers according to • the  
98. New high-pressure natural gas test-rig needs a new primary standard  
Date: 26.08.2020
Percental score: 7 %
PTB has developed a new primary standard for the calibration of gas meters using high-pressure natural gas. In future, the so-called high-pressure comparator will form the top of the traceability  
99. 4.21 Form and Wavefront Metrology  
Date: 03.06.2020
Percental score: 9 %
Selected publications The working group offers the following calibrations: Sphericity and radius measurement of sperical sections Refractive index measurement Transmission measurement on  
100. Criteria and Procedures QS Approval May2020  
Date: 12.05.2020
Percental score: 2 %
Criteria and Procedures QS Approval May2020 Conformity Assessment Body Criteria and procedures for the approval of the quality systems of measuring instruments manufacturers according to • the  
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