File:NISTvoltChip.jpg
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Size of this preview: 800 × 494 pixels. Other resolutions: 320 × 198 pixels | 640 × 395 pixels | 1,024 × 633 pixels | 1,421 × 878 pixels.
Original file (1,421 × 878 pixels, file size: 207 KB, MIME type: image/jpeg)
Summary
| Description |
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. |
| Date | apparently 1985-1988 |
| Source | NIST paper A Practical Josephson Voltage Standard at One Volt, Figure 1 |
| Author | NBS |
Licensing
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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 history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 13:22, 31 March 2017 | | 1,421 × 878 (207 KB) | wikimediacommons>Materialscientist | contrast |
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