Fiber-optical measuring apparatus
US4529875A · kind A · utility
36Cited by
5References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 13, 1982 |
| Grant date | Jul 16, 1985 |
| Priority date | — |
| Expiry date | Sep 13, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R15/246
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A fiber-optical measuring apparatus for measuring magnetic fields, current, position, and various mechanical quantities consists of a transducer connected to a measuring electronic unit via at least one optical fiber, and the transducer comprises a magneto-optical modulator with a domain-producing magnetic material. The transducer is provided with at least two optical filters, of which at least one filter is positioned in the ray path on one side of the magneto-optical modulator and at least one other filter is positioned in the ray path on the opposite side of the modulator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.