FIELD: magnetic measurement technology.
SUBSTANCE: magneto-optical device for measuring magnetic field strength has light source, magneto-optic material film and photoreceiver. All the units are disposed along path of light beam. Laser is used as light source. Magneto-optical material has periodical domain structure with disclination. Disclination of domain structure is disposed in center of illuminated part of magneto-optic material. Photoreceiver has light-sensitive area being equal in size to area of optical vortex having minimal light intensity. The photoreceiver is located in center of optical vortex. Magneto-optic film has gradient of thickness.
EFFECT: improved precision of measurement; higher sensitivity.
1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| MAGNETOOPTICAL DEVICE TO EXCITE OPTICAL COILS | 2003 |
|
RU2231815C1 |
| MAGNETIC DEVICE FOR EXCITING OPTIC VORTEXES | 2002 |
|
RU2249839C2 |
| MAGNETIC-OPTICAL DEVICE FOR FORMING OPTICAL VORTICES | 2002 |
|
RU2239217C2 |
| MAGNETOOPTICAL DEVICE TO EXCITE OPTICAL VORTEXES | 2003 |
|
RU2231100C1 |
| MAGNETIC FIELD FIBER-OPTIC TRANSDUCER | 2003 |
|
RU2259571C2 |
| MAGNETIC FIELD TRANSDUCER | 1999 |
|
RU2177625C2 |
| MAGNETIC FIELD TRANSDUCER | 1999 |
|
RU2161316C1 |
| MAGNETIC FIELD TRANSDUCER | 1999 |
|
RU2161315C1 |
| MAGNETIC FIELD FIBER-OPTIC TRANSDUCER | 2004 |
|
RU2255345C1 |
| METHOD AND DEVICE FOR READING DATA FROM MAGNETIC CARRIER HAVING STRIP DOMAIN STRUCTURE | 0 |
|
SU1094861A1 |
