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Sökning: WFRF:(Jeanneret Blaise)

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1.
  • Callegaro, Luca, et al. (författare)
  • The EMPIR Project GIQS : Graphene Impedance Quantum Standard
  • 2020
  • Ingår i: 2020 Conference on Precision Electromagnetic Measurements (CPEM). ; , s. 1-2
  • Konferensbidrag (refereegranskat)abstract
    • GIQS: Graphene Impedance Quantum Standard is a Joint Research Project of the European Metrology Programme for Innovation and Research (EMPIR). The project objective is to combine novel digital impedance measurement bridges with graphene-based ac quantum Hall resistance standards in a simplified cryogenic environment, to achieve simple, user-friendly quantum impedance standards suitable for primary realisation of impedance units in national metrology institutes, calibration centers, and the industry.
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2.
  • Kohlmann, Johannes, et al. (författare)
  • A quantum standard for sampled electrical measurements-Main goals and first results of the EMRP project Q-WAVE
  • 2014
  • Ingår i: 29th Conference on Precision Electromagnetic Measurements, CPEM 2014. ; , s. 522-523
  • Konferensbidrag (refereegranskat)abstract
    • Josephson voltage standards are well established for use at dc and low-frequency ac voltages. The increasing demand i) to provide traceability for arbitrary waveforms, ii) to extend the range of use to higher frequencies, and iii) to improve the accuracy is being addressed in the project Q-WAVE, which is jointly funded by the European Union and the participating countries within the European Metrology Research Programme (EMRP). Here, sampling measurements and procedures using binary-divided 1 V and 10 V arrays are investigated. In addition, a quantum-based analogue-to-digital converter for direct measurements of arbitrary waveforms is under development. It will contain several Josephson arrays in series biased by a pulse drive based on opto-electronics, in order to increase the output voltage.
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  • Resultat 1-2 av 2

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