Interferometer device for measurement of magnetic fields and electric current pickup comprising a device of this kind
US4560867A · kind A · utility
16Cited by
6References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 14, 1985 |
| Grant date | Dec 24, 1985 |
| Priority date | — |
| Expiry date | May 14, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/0322
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to a device for measuring a magnetic field, comprising a source of rectilinearly polarized light. A magnetooptical medium is situated in the path of the beam, this medium being followed by a mirror refecting this beam. This medium is a medium of which the intrinsic propagation modes are polarized in right-hand and left-hand directions, and which retains the circular polarization. An element acting as a separator by polarization is situated between the source and the medium, a detector device being coupled to the same.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.