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Datoteka:NISTvoltChip.jpg

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Sažetak

Opis
English: One-volt en:voltage standard developed by en:NIST (formerly en:National Bureau of Standards (NBS) until 1988) based on an array of 3020 superconducting en:Josephson junctions, operating at liquid-helium temperatures. Microwave energy fed into the finguide structure on the left generates a voltage across the 4 chains of junctions on the right.
Datum apparently 1985-1988
Izvor NIST paper A Practical Josephson Voltage Standard at One Volt, Figure 1
Autor NBS

Licenciranje

Public domain
This image is in the public domain in the United States because it is a work of the United States Federal Government, specifically an employee of the National Institute of Standards and Technology, under the terms of Title 17, Chapter 1, Section 105 of the US Code.

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Captions

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Voltage standard based on Josephson junctions

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MIME type engleski

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Historija datoteke

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Datum/vrijemeSmanjeni pregledDimenzijeKorisnikKomentar
trenutno13:22, 31 mart 2017Smanjeni pregled verzije na dan 13:22, 31 mart 20171.421 × 878 (207 KB)Materialscientistcontrast
08:20, 16 juli 2009Smanjeni pregled verzije na dan 08:20, 16 juli 20091.421 × 878 (86 KB)RNLionHigher-resolution view from same NIST source paper to show greater detail.
15:10, 11 septembar 2005Smanjeni pregled verzije na dan 15:10, 11 septembar 2005472 × 293 (123 KB)ArnoldReinholdSuperconduction chip used by w:NIST to define the w:volt. The chip contains an array of 3020 w:Josephson junctions and operates at liquid w:Helium temperatures. Microwave energy is fed to the junctions through the finguide on the left. Fr

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