Apparatus for measuring the neuro-magnetic field from a human brain and method for operating the same
US7756564B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 29, 2005 |
| Grant date | Jul 13, 2010 |
| Priority date | — |
| Expiry date | Nov 22, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/0358
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention provides a low-noise MEG apparatus of high sensitivity. A MEG apparatus using a magnetic shield of high critical temperature superconductor is set on the floor of a building via mechanical vibration suppressor supports to prevent appearance of noise signals. Also, the apparatus is equipped with means for preventing any relative displacement between the SQUID magnetic sensors and the magnetic shield of high critical temperature superconductor, thereby not letting an inevitable mechanical vibration of least strength produce any variable components of the trapped static magnetic field, which the SQUID magnetic sensors could be sensitive to.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.