MgB2-based superconducting wire for a liquid hydrogen level sensor, a liquid hydrogen level sensor, and a liquid hydrogen level gauge
US10128024B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 4, 2013 |
| Grant date | Nov 13, 2018 |
| Priority date | — |
| Expiry date | May 5, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N60/0856
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An MgB2-based superconducting wire for a liquid hydrogen fluid level sensor which can maintain an unimmersed portion of the MgB2-based superconducting wire for a liquid hydrogen fluid level sensor in a non-superconducting state even without heating the unimmersed portion is provided. A wire for a liquid hydrogen fluid level sensor comprises an MgB2-based superconductor which contains Mg, B, and Al. The critical temperature at which the electrical resistance becomes essentially zero is 20-25 K, and the transition width, which is the difference between the temperature at which the electrical resistance begins to decrease toward zero and the critical temperature, is at most 5 K.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.