file:NISTvoltChip.jpg
Ii preview ke size: 800 × 494 pixels Duusra resolutions: 320 × 198 pixels | 640 × 395 pixels | 1,024 × 633 pixels | 1,421 × 878 pixels.
Original file (1,421 × 878 pixel, file ke size: 207 KB, MIME type: image/jpeg)
Sanchhipt me
| Baare me |
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. |
| Taarik | apparently 1985-1988 |
| Source | NIST paper A Practical Josephson Voltage Standard at One Volt, Figure 1 |
| Likhe waala | NBS |
Licence ke baare me
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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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File ke itihaas
File ke dekhe khatir, jaise uu time dekhe me lagat rahaa, date/time pe click karo.
| Din/Time | Chhota chapa | Lambai aur chaurai | Sadasya | Tiprrin | |
|---|---|---|---|---|---|
| abhi waala | 11:22, 31 Maach 2017 | | 1,421 × 878 (207 KB) | Materialscientist | contrast |
| 06:20, 16 Julai 2009 |  | 1,421 × 878 (86 KB) | RNLion | Higher-resolution view from same NIST source paper to show greater detail. | |
| 13:10, 11 Saptambar 2005 |  | 472 × 293 (123 KB) | ArnoldReinhold | Superconduction 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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