Interferometric sensor
US4725143A · kind A · utility
6Cited by
1References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 27, 1986 |
| Grant date | Feb 16, 1988 |
| Priority date | — |
| Expiry date | Feb 27, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01K11/32
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An interferometric sensor includes an optical fiber polarimetric sensing element (5) for detecting a required measurand and is configured so as to derive interference output signals, which are simultaneously monitored by photodetectors (9, 11), from both conventional, for example, Michelson, and polarimetric interferometer arrangements. The sensor therefore offers the high resolution of a conventional interferometer in conjunction with the increased dynamic range of a polarimetric device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.