Multichannel SQUID flux meter having multiplexed SQUID flux sensors
US5355085A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 20, 1991 |
| Grant date | Oct 11, 1994 |
| Priority date | — |
| Expiry date | Mar 20, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S505/846
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A plurality of SQUID flux sensors are supplied with their respective bias currents at the same time from a bias source. A superconducting multiplexer multiplexes output signals of the SQUID flux sensors during an interval of time when the bias currents are supplied to the SQUID flux sensors. A multiplexer, placed in a room-temperature environment, distributes each of the multiplexed output signals of the SQUID flux sensors to a respective one of the output terminals which correspond to the SQUID flux sensors. Each signal which has been output to an individual output terminal is counted by a counter, so that an external magnetic flux to a corresponding SQUID flux sensor is measured.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.