Superconductor type radio frequency with adjustable inductance magnetic flux measuring circuit
US5021739A · kind A · utility
8Cited by
4References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 25, 1989 |
| Grant date | Jun 4, 1991 |
| Priority date | — |
| Expiry date | Oct 25, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S505/846
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An RF magnetic flux measuring circuit uses a SQUID fluxmeter of which the input and output characteristics establish a periodic function, and in which a pick-up coil for picking up desired RF magnetic flux and an input coil of the SQUID fluxmeter are connected to form a closed loop which is a superconducting loop for transferring the magnetic flux to the SQUID. There is also provided an inductance adjusting device which adjusts the inductance of the superconducting loop to limit the magnetic flux that crosses the SQUID fluxmeter within a range of a single-valued function in said input and output characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.